mv_sas.c revision 6ceae7c6234f2961dc59912412e8c0706d825873
1b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik/* 220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * Marvell 88SE64xx/88SE94xx main function 320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * 420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * Copyright 2007 Red Hat, Inc. 520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * Copyright 2008 Marvell. <kewei@marvell.com> 60b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com> 720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * 820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * This file is licensed under GPLv2. 920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * 1020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * This program is free software; you can redistribute it and/or 1120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * modify it under the terms of the GNU General Public License as 1220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * published by the Free Software Foundation; version 2 of the 1320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * License. 1420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * 1520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * This program is distributed in the hope that it will be useful, 1620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * but WITHOUT ANY WARRANTY; without even the implied warranty of 1720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * General Public License for more details. 1920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * 2020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * You should have received a copy of the GNU General Public License 2120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * along with this program; if not, write to the Free Software 2220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 2320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * USA 2420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan*/ 25b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 26dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik#include "mv_sas.h" 27b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 28dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag) 29dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 30dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (task->lldd_task) { 31dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_slot_info *slot; 32f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan slot = task->lldd_task; 3320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan *tag = slot->slot_tag; 34dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 1; 35dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 36dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 37dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 388f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 3920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_tag_clear(struct mvs_info *mvi, u32 tag) 40dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 41b89e8f539ff8bcf2a1464578fa91cb96cc433fc3Xiangliang Yu void *bitmap = mvi->tags; 42dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik clear_bit(tag, bitmap); 43dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 448f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 4520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_tag_free(struct mvs_info *mvi, u32 tag) 46dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 47dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_clear(mvi, tag); 48dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 498f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 5020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_tag_set(struct mvs_info *mvi, unsigned int tag) 51dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 52b89e8f539ff8bcf2a1464578fa91cb96cc433fc3Xiangliang Yu void *bitmap = mvi->tags; 53dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik set_bit(tag, bitmap); 54dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 558f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 5620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yaninline int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out) 57dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 58dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik unsigned int index, tag; 59b89e8f539ff8bcf2a1464578fa91cb96cc433fc3Xiangliang Yu void *bitmap = mvi->tags; 60b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan index = find_first_zero_bit(bitmap, mvi->tags_num); 62dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik tag = index; 6320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (tag >= mvi->tags_num) 64dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return -SAS_QUEUE_FULL; 65dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_set(mvi, tag); 66dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik *tag_out = tag; 67dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 68dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 69b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 70dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikvoid mvs_tag_init(struct mvs_info *mvi) 71dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 72dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int i; 7320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (i = 0; i < mvi->tags_num; ++i) 74dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_clear(mvi, i); 75dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 76b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 7720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstruct mvs_info *mvs_find_dev_mvi(struct domain_device *dev) 7820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 7920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long i = 0, j = 0, hi = 0; 8020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = dev->port->ha; 8120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; 8220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *phy; 8320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 8420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_port[i]) { 8520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_port[i] == dev->port) { 8620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy = container_of(sha->sas_port[i]->phy_list.next, 8720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy, port_phy_el); 8820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j = 0; 8920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_phy[j]) { 9020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_phy[j] == phy) 9120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 9220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j++; 9320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 9420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 9520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 9620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 9720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 9820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hi = j/((struct mvs_prv_info *)sha->lldd_ha)->n_phy; 9920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi]; 1008f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 10120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return mvi; 1028f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 10320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1048f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 10520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_find_dev_phyno(struct domain_device *dev, int *phyno) 10620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 10720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long i = 0, j = 0, n = 0, num = 0; 1089870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 1099870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 11020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = dev->port->ha; 11120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 11220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_port[i]) { 11320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_port[i] == dev->port) { 11420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *phy; 11520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_for_each_entry(phy, 11620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan &sha->sas_port[i]->phy_list, port_phy_el) { 11720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j = 0; 11820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_phy[j]) { 11920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_phy[j] == phy) 12020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 12120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j++; 12220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 12320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phyno[n] = (j >= mvi->chip->n_phy) ? 12420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (j - mvi->chip->n_phy) : j; 12520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan num++; 12620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan n++; 127dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 128dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 129dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 13020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 13120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 13220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return num; 13320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 13420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 135534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yustruct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, 136534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu u8 reg_set) 137534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu{ 138534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu u32 dev_no; 139534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) { 140534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED) 141534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu continue; 142534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu 143534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu if (mvi->devices[dev_no].taskfileset == reg_set) 144534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu return &mvi->devices[dev_no]; 145534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu } 146534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu return NULL; 147534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu} 148534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu 14920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic inline void mvs_free_reg_set(struct mvs_info *mvi, 15020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *dev) 15120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 15220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!dev) { 15320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("device has been free.\n"); 15420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 15520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 15620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev->taskfileset == MVS_ID_NOT_MAPPED) 15720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 15820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->free_reg_set(mvi, &dev->taskfileset); 15920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 16020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 16120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic inline u8 mvs_assign_reg_set(struct mvs_info *mvi, 16220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *dev) 16320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 16420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev->taskfileset != MVS_ID_NOT_MAPPED) 16520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 16620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return MVS_CHIP_DISP->assign_reg_set(mvi, &dev->taskfileset); 16720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 16820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 16920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard) 17020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 17120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 no; 17220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for_each_phy(phy_mask, phy_mask, no) { 17320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy_mask & 1)) 17420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan continue; 17520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, no, hard); 17620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 17720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 17820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 17920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, 18020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *funcdata) 18120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 18220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = 0, phy_id = sas_phy->id; 18320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp, i = 0, hi; 18420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = sas_phy->ha; 18520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; 18620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 18720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_phy[i]) { 18820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_phy[i] == sas_phy) 18920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 19020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 19120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 19220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hi = i/((struct mvs_prv_info *)sha->lldd_ha)->n_phy; 19320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi]; 19420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 19520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (func) { 19620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case PHY_FUNC_SET_LINK_RATE: 19720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_set_link_rate(mvi, phy_id, funcdata); 19820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1998f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 200dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_HARD_RESET: 20120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_id); 202dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (tmp & PHY_RST_HARD) 203dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 204a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_HARD_RESET); 205dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 206b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 207dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_LINK_RESET: 20820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_enable(mvi, phy_id); 209a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_SOFT_RESET); 210dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 211b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 212dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_DISABLE: 21320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_disable(mvi, phy_id); 21420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 215dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_RELEASE_SPINUP_HOLD: 216dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 217dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -EOPNOTSUPP; 218b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 21920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan msleep(200); 220b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return rc; 221b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 222b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 22320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid __devinit mvs_set_sas_addr(struct mvs_info *mvi, int port_id, 22420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 off_lo, u32 off_hi, u64 sas_addr) 22520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 22620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 lo = (u32)sas_addr; 22720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 hi = (u32)(sas_addr>>32); 22820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 22920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_lo); 23020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, lo); 23120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_hi); 23220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, hi); 23320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 23420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 235dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_bytes_dmaed(struct mvs_info *mvi, int i) 236ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei{ 237dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 23820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &phy->sas_phy; 23920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sas_ha; 240dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!phy->phy_attached) 241dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return; 242dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 24320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy->att_dev_info & PORT_DEV_TRGT_MASK) 24420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan && phy->phy_type & PORT_TYPE_SAS) { 24520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 24620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 24720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 24820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha = mvi->sas; 24920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); 25020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 251dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (sas_phy->phy) { 252dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_phy *sphy = sas_phy->phy; 253dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 254dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->negotiated_linkrate = sas_phy->linkrate; 255dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->minimum_linkrate = phy->minimum_linkrate; 256dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; 257dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->maximum_linkrate = phy->maximum_linkrate; 25820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sphy->maximum_linkrate_hw = MVS_CHIP_DISP->phy_max_link_rate(); 259ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei } 260ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei 261dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 262dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_identify_frame *id; 263b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 264dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id = (struct sas_identify_frame *)phy->frame_rcvd; 265dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->dev_type = phy->identify.device_type; 266dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->initiator_bits = SAS_PROTOCOL_ALL; 267dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->target_bits = phy->identify.target_port_protocols; 268dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else if (phy->phy_type & PORT_TYPE_SATA) { 26920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /*Nothing*/ 270dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 27120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy %d byte dmaded.\n", i + mvi->id * mvi->chip->n_phy); 27220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 27320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy->frame_rcvd_size = phy->frame_rcvd_size; 27420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 27520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->sas->notify_port_event(sas_phy, 276dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PORTE_BYTES_DMAED); 277ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei} 278ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei 279dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikvoid mvs_scan_start(struct Scsi_Host *shost) 280b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 28120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int i, j; 28220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned short core_nr; 28320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi; 28420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 28584fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu struct mvs_prv_info *mvs_prv = sha->lldd_ha; 28620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 28720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 288dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 28920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (j = 0; j < core_nr; j++) { 29020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j]; 29120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (i = 0; i < mvi->chip->n_phy; ++i) 29220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, i); 293dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 29484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvs_prv->scan_finished = 1; 295b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 296b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 297dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikint mvs_scan_finished(struct Scsi_Host *shost, unsigned long time) 298b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 29984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 30084fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu struct mvs_prv_info *mvs_prv = sha->lldd_ha; 30184fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu 30284fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu if (mvs_prv->scan_finished == 0) 303dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 30484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu 305dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik scsi_flush_work(shost); 306dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 1; 307b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 308b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 309dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic int mvs_task_prep_smp(struct mvs_info *mvi, 310dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_task_exec_info *tei) 311b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 312dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int elem, rc, i; 313dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_task *task = tei->task; 314dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 31520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 31620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = dev->port; 317dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct scatterlist *sg_req, *sg_resp; 318dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 req_len, resp_len, tag = tei->tag; 319dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik void *buf_tmp; 320dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u8 *buf_oaf; 321dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik dma_addr_t buf_tmp_dma; 32220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 323dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_slot_info *slot = &mvi->slot_info[tag]; 324dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); 325b89e8f539ff8bcf2a1464578fa91cb96cc433fc3Xiangliang Yu 326dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 327dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * DMA-map SMP request, response buffers 328dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 329dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sg_req = &task->smp_task.smp_req; 33020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE); 331dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!elem) 332dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return -ENOMEM; 333dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik req_len = sg_dma_len(sg_req); 334b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 335dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sg_resp = &task->smp_task.smp_resp; 33620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE); 337dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!elem) { 338dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -ENOMEM; 339dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik goto err_out; 340dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 34120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan resp_len = SB_RFB_MAX; 342b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 343dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* must be in dwords */ 344dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if ((req_len & 0x3) || (resp_len & 0x3)) { 345dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -EINVAL; 346dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik goto err_out_2; 347b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 348b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 349dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 350dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 351dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 352b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 35320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */ 354dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp = slot->buf; 355dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma = slot->buf_dma; 356b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 357dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req)); 358b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 359dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 360dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_oaf = buf_tmp; 361dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 362b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 363dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp += MVS_OAF_SZ; 364dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 365b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 36620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* region 3: PRD table *********************************** */ 367dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_prd = buf_tmp; 368dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (tei->n_elem) 369dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 370dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik else 371dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->prd_tbl = 0; 372b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 37320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * tei->n_elem; 374dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp += i; 375dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma += i; 376b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 377dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 378dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->response = buf_tmp; 379dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 38020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 38120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 382b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 383dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 384dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * Fill in TX ring and command slot header 385dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 386dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->tx = mvi->tx_prod; 387dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) | 388dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik TXQ_MODE_I | tag | 389dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik (sas_port->phy_mask << TXQ_PHY_SHIFT)); 390b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 391dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->flags |= flags; 392dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4)); 393dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->tags = cpu_to_le32(tag); 394dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->data_len = 0; 395b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 396dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* generate open address frame hdr (first 12 bytes) */ 39720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, SMP, ftype 1h */ 39820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01; 3996ceae7c6234f2961dc59912412e8c0706d825873Xiangliang Yu buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; 400dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */ 40120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 402dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 403dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* fill in PRD (scatter/gather) table, if any */ 40420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 405b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 406b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 407b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 408dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out_2: 40920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1, 410dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_FROMDEVICE); 411b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzikerr_out: 41220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1, 413dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_TODEVICE); 414b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return rc; 4158f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 4168f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 417dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) 4188f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 419dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct ata_queued_cmd *qc = task->uldd_task; 4208f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 421dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (qc) { 422dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (qc->tf.command == ATA_CMD_FPDMA_WRITE || 423dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik qc->tf.command == ATA_CMD_FPDMA_READ) { 424dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik *tag = qc->tag; 425dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 1; 426dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 4278f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 4288f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 429dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 4308f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 4318f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 432dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic int mvs_task_prep_ata(struct mvs_info *mvi, 433dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_task_exec_info *tei) 434b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 435b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct sas_task *task = tei->task; 436b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct domain_device *dev = task->dev; 437f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 438b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 439b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct asd_sas_port *sas_port = dev->port; 4408f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct mvs_slot_info *slot; 44120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 44220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag = tei->tag, hdr_tag; 44320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 flags, del_q; 444b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik void *buf_tmp; 445b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u8 *buf_cmd, *buf_oaf; 446b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik dma_addr_t buf_tmp_dma; 4478f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei u32 i, req_len, resp_len; 4488f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei const u32 max_resp_len = SB_RFB_MAX; 4498f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 45020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) { 45120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("Have not enough regiset for dev %d.\n", 45220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id); 4538f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei return -EBUSY; 45420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 4558f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot = &mvi->slot_info[tag]; 4568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot->tx = mvi->tx_prod; 45720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan del_q = TXQ_MODE_I | tag | 45820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (TXQ_CMD_STP << TXQ_CMD_SHIFT) | 45920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (sas_port->phy_mask << TXQ_PHY_SHIFT) | 46020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (mvi_dev->taskfileset << TXQ_SRS_SHIFT); 46120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); 46220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 46320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->data_dir == DMA_FROM_DEVICE) 46420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT); 46520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 46620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); 4678882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 468b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik if (task->ata_task.use_ncq) 469b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags |= MCH_FPDMA; 4708f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) { 4718f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI) 4728f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei flags |= MCH_ATAPI; 4738f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 4748f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 475b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->flags = cpu_to_le32(flags); 4768f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 47720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag)) 47820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); 4794e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei else 48020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr_tag = tag; 48120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 48220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->tags = cpu_to_le32(hdr_tag); 48320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 484b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->data_len = cpu_to_le32(task->total_xfer_len); 485b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 486b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* 487b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 488b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik */ 489b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 4908f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */ 4918f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei buf_cmd = buf_tmp = slot->buf; 492b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma = slot->buf_dma; 493b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 494b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); 495b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 496b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_ATA_CMD_SZ; 497b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_ATA_CMD_SZ; 498b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 4998f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 500b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* used for STP. unused for SATA? */ 501b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_oaf = buf_tmp; 502b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 503b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 504b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_OAF_SZ; 505b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 506b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5078f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 3: PRD table ********************************************* */ 508b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_prd = buf_tmp; 50920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 5108f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (tei->n_elem) 5118f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 5128f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei else 5138f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = 0; 51420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count(); 515b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 516b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += i; 517b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += i; 518b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5198f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 520b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot->response = buf_tmp; 521b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 52220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 52320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 524b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5258f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei req_len = sizeof(struct host_to_dev_fis); 526b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ - 5278f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei sizeof(struct mvs_err_info) - i; 528b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 529b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* request, response lengths */ 5308f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei resp_len = min(resp_len, max_resp_len); 531b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); 532b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 53320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (likely(!task->ata_task.device_control_reg_update)) 53420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ 535b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* fill in command FIS and ATAPI CDB */ 5368f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); 5378f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) 5388f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei memcpy(buf_cmd + STP_ATAPI_CMD, 5398f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei task->ata_task.atapi_packet, 16); 5408f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 5418f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* generate open address frame hdr (first 12 bytes) */ 54220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, STP, ftype 1h */ 54320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1; 5446ceae7c6234f2961dc59912412e8c0706d825873Xiangliang Yu buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; 54520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); 54620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 547b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 548b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* fill in PRD (scatter/gather) table, if any */ 54920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 5508882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 55120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->data_dir == DMA_FROM_DEVICE) 5528882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask, 55320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan TRASH_BUCKET_SIZE, tei->n_elem, buf_prd); 5548882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 555b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 556b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 557b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 558b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzikstatic int mvs_task_prep_ssp(struct mvs_info *mvi, 55920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_task_exec_info *tei, int is_tmf, 56020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task *tmf) 561b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 562b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct sas_task *task = tei->task; 563b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 5648f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct mvs_port *port = tei->port; 56520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 566f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 56720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = dev->port; 568b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_slot_info *slot; 56920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 570b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct ssp_frame_hdr *ssp_hdr; 571b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik void *buf_tmp; 572b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u8 *buf_cmd, *buf_oaf, fburst = 0; 573b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik dma_addr_t buf_tmp_dma; 574b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u32 flags; 5758f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei u32 resp_len, req_len, i, tag = tei->tag; 5768f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei const u32 max_resp_len = SB_RFB_MAX; 57720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 phy_mask; 578b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 579b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot = &mvi->slot_info[tag]; 580b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 58120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap : 58220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_port->phy_mask) & TXQ_PHY_MASK; 58320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 5848f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot->tx = mvi->tx_prod; 5858f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag | 5868f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei (TXQ_CMD_SSP << TXQ_CMD_SHIFT) | 5874e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei (phy_mask << TXQ_PHY_SHIFT)); 588b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 589b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags = MCH_RETRY; 590b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik if (task->ssp_task.enable_first_burst) { 591b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags |= MCH_FBURST; 592b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik fburst = (1 << 7); 593b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 5942b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan if (is_tmf) 5952b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT); 59684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu else 59784fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu flags |= (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT); 59884fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu 5992b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT)); 600b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->tags = cpu_to_le32(tag); 601b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->data_len = cpu_to_le32(task->total_xfer_len); 602b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 603b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* 604b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 605b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik */ 606b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6078f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */ 6088f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei buf_cmd = buf_tmp = slot->buf; 609b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma = slot->buf_dma; 610b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 611b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); 612b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 613b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_SSP_CMD_SZ; 614b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_SSP_CMD_SZ; 615b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6168f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 617b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_oaf = buf_tmp; 618b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 619b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 620b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_OAF_SZ; 621b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 622b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6238f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 3: PRD table ********************************************* */ 624b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_prd = buf_tmp; 6258f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (tei->n_elem) 6268f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 6278f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei else 6288f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = 0; 629b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 63020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * tei->n_elem; 631b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += i; 632b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += i; 633b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6348f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 635b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot->response = buf_tmp; 636b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 63720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 63820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 639b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 640b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ - 6418f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei sizeof(struct mvs_err_info) - i; 6428f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei resp_len = min(resp_len, max_resp_len); 6438f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 6448f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei req_len = sizeof(struct ssp_frame_hdr) + 28; 645b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 646b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* request, response lengths */ 647b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); 648b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 649b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* generate open address frame hdr (first 12 bytes) */ 65020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, SSP, ftype 1h */ 65120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1; 6526ceae7c6234f2961dc59912412e8c0706d825873Xiangliang Yu buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf; 65320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); 65420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 655b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* fill in SSP frame header (Command Table.SSP frame header) */ 6578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei ssp_hdr = (struct ssp_frame_hdr *)buf_cmd; 65820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 65920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (is_tmf) 66020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ssp_hdr->frame_type = SSP_TASK; 66120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 66220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ssp_hdr->frame_type = SSP_COMMAND; 66320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 66420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr, 665b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik HASHED_SAS_ADDR_SIZE); 666b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik memcpy(ssp_hdr->hashed_src_addr, 66720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE); 668b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik ssp_hdr->tag = cpu_to_be16(tag); 669b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 67020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* fill in IU for TASK and Command Frame */ 671b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_cmd += sizeof(*ssp_hdr); 672b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik memcpy(buf_cmd, &task->ssp_task.LUN, 8); 673b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 67420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (ssp_hdr->frame_type != SSP_TASK) { 67520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[9] = fburst | task->ssp_task.task_attr | 67620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (task->ssp_task.task_prio << 3); 67720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_cmd + 12, &task->ssp_task.cdb, 16); 67820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else{ 67920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[10] = tmf->tmf; 68020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (tmf->tmf) { 68120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_ABORT_TASK: 68220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_QUERY_TASK: 68320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[12] = 68420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (tmf->tag_of_task_to_be_managed >> 8) & 0xff; 68520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[13] = 68620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf->tag_of_task_to_be_managed & 0xff; 68720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 68820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan default: 68920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 69020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 691b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 69220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* fill in PRD (scatter/gather) table, if any */ 69320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 694b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 695b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 696b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 69720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan#define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == NO_DEVICE))) 6980b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf, 6990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf, int *pass) 700b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 7018f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct domain_device *dev = task->dev; 7020b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_device *mvi_dev = dev->lldd_dev; 703b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_task_exec_info tei; 7044e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei struct mvs_slot_info *slot; 7050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 tag = 0xdeadbeef, n_elem = 0; 7060b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu int rc = 0; 707b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 70820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!dev->port) { 7090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *tsm = &task->task_status; 71020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 71120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tsm->resp = SAS_TASK_UNDELIVERED; 71220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tsm->stat = SAS_PHY_DOWN; 7130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu /* 7140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu * libsas will use dev->port, should 7150b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu * not call task_done for sata 7160b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu */ 7179dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (dev->dev_type != SATA_DEV) 7180b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 7190b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 72020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 72120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7220b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (DEV_IS_GONE(mvi_dev)) { 7230b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (mvi_dev) 7240b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("device %d not ready.\n", 7250b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi_dev->device_id); 7260b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 7270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("device %016llx not ready.\n", 7280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu SAS_ADDR(dev->sas_addr)); 72920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 73020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = SAS_PHY_DOWN; 7310b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 7320b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7330b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.port = dev->port->lldd_port; 7340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (tei.port && !tei.port->port_attached && !tmf) { 7350b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (sas_protocol_ata(task->task_proto)) { 7360b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *ts = &task->task_status; 7370b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("SATA/STP port %d does not attach" 7380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "device.\n", dev->port->id); 7390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->resp = SAS_TASK_COMPLETE; 7400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->stat = SAS_PHY_DOWN; 74120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 743dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 744dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else { 7450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *ts = &task->task_status; 7460b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("SAS port %d does not attach" 7470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "device.\n", dev->port->id); 7480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->resp = SAS_TASK_UNDELIVERED; 7490b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->stat = SAS_PHY_DOWN; 7500b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 751dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 7520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 7530b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 754dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 7550b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!sas_protocol_ata(task->task_proto)) { 7560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (task->num_scatter) { 7570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu n_elem = dma_map_sg(mvi->dev, 7580b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->scatter, 7590b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->num_scatter, 7600b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->data_dir); 7610b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!n_elem) { 7620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -ENOMEM; 7630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto prep_out; 7640b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7650b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7660b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } else { 7670b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu n_elem = task->num_scatter; 7680b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 76920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7700b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_tag_alloc(mvi, &tag); 7710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 7720b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out; 77320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot = &mvi->slot_info[tag]; 77520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->lldd_task = NULL; 7770b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->n_elem = n_elem; 7780b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->slot_tag = tag; 7790b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 7800b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->buf = pci_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma); 7810b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!slot->buf) 7820b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out_tag; 7830b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu memset(slot->buf, 0, MVS_SLOT_BUF_SZ); 7840b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 7850b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.task = task; 7860b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.hdr = &mvi->slot[tag]; 7870b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.tag = tag; 7880b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.n_elem = n_elem; 7890b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu switch (task->task_proto) { 7900b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SMP: 7910b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_smp(mvi, &tei); 7920b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 7930b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SSP: 7940b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf); 7950b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 7960b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SATA: 7970b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_STP: 7980b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 7990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_ata(mvi, &tei); 8000b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8010b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu default: 8020b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, 8030b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "unknown sas_task proto: 0x%x\n", 8040b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_proto); 8050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -EINVAL; 8060b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8070b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 808dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 8090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) { 8100b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("rc is %x\n", rc); 8110b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out_slot_buf; 8120b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 8130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->task = task; 8140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->port = tei.port; 8150b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->lldd_task = slot; 8160b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_add_tail(&slot->entry, &tei.port->list); 8170b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock(&task->task_state_lock); 8180b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_state_flags |= SAS_TASK_AT_INITIATOR; 8190b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock(&task->task_state_lock); 8200b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8210b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi_dev->running_req++; 8220b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ++(*pass); 8230b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1); 8249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 8250b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 826dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 8270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yuerr_out_slot_buf: 8280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); 829dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out_tag: 830dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_free(mvi, tag); 831dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out: 83220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 8330b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc); 8340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!sas_protocol_ata(task->task_proto)) 835dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (n_elem) 8360b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dma_unmap_sg(mvi->dev, task->scatter, n_elem, 8370b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->data_dir); 8380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yuprep_out: 8390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 8400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 8410b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic struct mvs_task_list *mvs_task_alloc_list(int *num, gfp_t gfp_flags) 8430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 8440b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *first = NULL; 8450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8460b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu for (; *num > 0; --*num) { 8470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mvs_list = kmem_cache_zalloc(mvs_task_list_cache, gfp_flags); 8480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8490b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!mvs_list) 8500b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8510b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu INIT_LIST_HEAD(&mvs_list->list); 8530b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!first) 8540b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu first = mvs_list; 8550b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 8560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_add_tail(&mvs_list->list, &first->list); 8570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8580b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 8590b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8600b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return first; 8610b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 8620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic inline void mvs_task_free_list(struct mvs_task_list *mvs_list) 8640b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 8650b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu LIST_HEAD(list); 8660b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct list_head *pos, *a; 8670b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mlist = NULL; 8680b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8690b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu __list_add(&list, mvs_list->list.prev, &mvs_list->list); 8700b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_safe(pos, a, &list) { 8720b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_del_init(pos); 8730b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mlist = list_entry(pos, struct mvs_task_list, list); 8740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu kmem_cache_free(mvs_task_list_cache, mlist); 8750b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 8760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 8770b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8780b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, 8790b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct completion *completion, int is_tmf, 8800b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf) 8810b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 8820b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct domain_device *dev = task->dev; 8830b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_info *mvi = NULL; 8840b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 rc = 0; 8850b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 pass = 0; 8860b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu unsigned long flags = 0; 8870b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8880b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info; 8890b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8900b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if ((dev->dev_type == SATA_DEV) && (dev->sata_dev.ap != NULL)) 8910b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock_irq(dev->sata_dev.ap->lock); 8920b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8930b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irqsave(&mvi->lock, flags); 8940b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass); 8950b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 8960b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); 8970b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8980b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass)) 8990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) & 9000b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (MVS_CHIP_SLOT_SZ - 1)); 9010b84b7094e87769120def1e703b8b4d037281038Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 9020b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9030b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if ((dev->dev_type == SATA_DEV) && (dev->sata_dev.ap != NULL)) 9040b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irq(dev->sata_dev.ap->lock); 9050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9060b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 9070b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 9080b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_collector_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, 9100b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct completion *completion, int is_tmf, 9110b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf) 9120b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 9130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct domain_device *dev = task->dev; 9140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_prv_info *mpi = dev->port->ha->lldd_ha; 9150b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_info *mvi = NULL; 9160b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct sas_task *t = task; 9170b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mvs_list = NULL, *a; 9180b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu LIST_HEAD(q); 9190b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu int pass[2] = {0}; 9200b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 rc = 0; 9210b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 n = num; 9220b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu unsigned long flags = 0; 9230b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9240b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvs_list = mvs_task_alloc_list(&n, gfp_flags); 9250b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (n) { 9260b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu printk(KERN_ERR "%s: mvs alloc list failed.\n", __func__); 9270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -ENOMEM; 9280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto free_list; 9290b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9300b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9310b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu __list_add(&q, mvs_list->list.prev, &mvs_list->list); 9320b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9330b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_entry(a, &q, list) { 9340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu a->task = t; 9350b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu t = list_entry(t->list.next, struct sas_task, list); 9360b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9370b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_entry(a, &q , list) { 9390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu t = a->task; 9410b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi = ((struct mvs_device *)t->dev->lldd_dev)->mvi_info; 9420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irqsave(&mvi->lock, flags); 9440b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep(t, mvi, is_tmf, tmf, &pass[mvi->id]); 9450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 9460b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); 9470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock_irqrestore(&mvi->lock, flags); 9480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9490b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9500b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass[0])) 9510b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mpi->mvi[0], 9520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (mpi->mvi[0]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); 9530b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9540b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass[1])) 9550b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mpi->mvi[1], 9560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (mpi->mvi[1]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); 9570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9580b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_del_init(&q); 9590b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9600b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yufree_list: 9610b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (mvs_list) 9620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvs_task_free_list(mvs_list); 9630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 964dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 965dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 966dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 96720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_queue_command(struct sas_task *task, const int num, 96820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan gfp_t gfp_flags) 96920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 9700b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_device *mvi_dev = task->dev->lldd_dev; 9710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct sas_ha_struct *sas = mvi_dev->mvi_info->sas; 9720b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9730b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (sas->lldd_max_execute_num < 2) 9740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return mvs_task_exec(task, num, gfp_flags, NULL, 0, NULL); 9750b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 9760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return mvs_collector_task_exec(task, num, gfp_flags, NULL, 0, NULL); 97720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 97820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 979dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) 980dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 981dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 slot_idx = rx_desc & RXQ_SLOT_MASK; 982dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_clear(mvi, slot_idx); 983dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 984dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 985dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task, 986dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_slot_info *slot, u32 slot_idx) 987dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 98820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!slot->task) 98920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 990dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!sas_protocol_ata(task->task_proto)) 991dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (slot->n_elem) 99220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, task->scatter, 993dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->n_elem, task->data_dir); 994dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 995dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik switch (task->task_proto) { 996dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SMP: 99720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1, 998dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_FROMDEVICE); 99920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1, 1000dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_TODEVICE); 1001dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1002dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1003dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SATA: 1004dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_STP: 1005dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SSP: 1006dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 1007dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* do nothing */ 1008dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1009dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 10100b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 10110b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (slot->buf) { 10120b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); 10130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->buf = NULL; 10140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 101520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_del_init(&slot->entry); 1016dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik task->lldd_task = NULL; 1017dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->task = NULL; 1018dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->port = NULL; 101920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot->slot_tag = 0xFFFFFFFF; 102020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_free(mvi, slot_idx); 1021dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1022dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 102384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yustatic void mvs_update_wideport(struct mvs_info *mvi, int phy_no) 1024dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 102584fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu struct mvs_phy *phy = &mvi->phy[phy_no]; 1026dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_port *port = phy->port; 1027dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int j, no; 1028dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 102920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for_each_phy(port->wide_port_phymap, j, no) { 103020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (j & 1) { 103120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, 103220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYR_WIDE_PORT); 103320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, no, 1034dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap); 1035dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else { 103620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, 103720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYR_WIDE_PORT); 103820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, no, 103920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 0); 1040dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 104120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1042dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1043dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1044dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_is_phy_ready(struct mvs_info *mvi, int i) 1045dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1046dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 tmp; 1047dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 104820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port = phy->port; 1049dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 105020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i); 1051dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) { 1052dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!port) 1053dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_attached = 1; 1054dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return tmp; 1055dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1056dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1057dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (port) { 1058dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 1059dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap &= ~(1U << i); 1060dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!port->wide_port_phymap) 1061dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 0; 1062dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_update_wideport(mvi, i); 1063dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else if (phy->phy_type & PORT_TYPE_SATA) 1064dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 0; 1065dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->port = NULL; 1066dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_attached = 0; 1067dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); 1068dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1069dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 1070dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1071dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1072dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf) 1073dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1074dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 *s = (u32 *) buf; 1075dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1076dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!s) 1077dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return NULL; 1078dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 107920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3); 108084fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu s[3] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); 1081dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 108220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2); 108384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu s[2] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); 1084dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 108520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1); 108684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu s[1] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); 1087dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 108820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0); 108984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i)); 109020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 109120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01)) 109220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10); 1093dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1094f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan return s; 1095dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1096dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1097dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_is_sig_fis_received(u32 irq_status) 1098dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1099dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return irq_status & PHYEV_SIG_FIS; 1100dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1101dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 11028882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yustatic void mvs_sig_remove_timer(struct mvs_phy *phy) 11038882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu{ 11048882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu if (phy->timer.function) 11058882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu del_timer(&phy->timer); 11068882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu phy->timer.function = NULL; 11078882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu} 11088882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 110920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st) 1110dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1111dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 111220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_identify_frame *id; 1113b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 111420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan id = (struct sas_identify_frame *)phy->frame_rcvd; 1115b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1116dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (get_st) { 111720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i); 1118dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_status = mvs_is_phy_ready(mvi, i); 1119dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 11208f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 1121dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_status) { 112220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int oob_done = 0; 112320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy; 1124b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 112520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan oob_done = MVS_CHIP_DISP->oob_done(mvi, i); 112620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 112720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->fix_phy_info(mvi, i, id); 112820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_type & PORT_TYPE_SATA) { 112920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->identify.target_port_protocols = SAS_PROTOCOL_STP; 113020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvs_is_sig_fis_received(phy->irq_status)) { 11318882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu mvs_sig_remove_timer(phy); 113220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 1; 113320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_sas_addr = 113420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy; 113520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (oob_done) 113620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy->oob_mode = SATA_OOB_MODE; 113720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->frame_rcvd_size = 113820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct dev_to_host_fis); 1139f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan mvs_get_d2h_reg(mvi, i, id); 114020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 114120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 114220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev_printk(KERN_DEBUG, mvi->dev, 114320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "Phy%d : No sig fis\n", i); 114420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i); 114520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, i, 114620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp | PHYEV_SIG_FIS); 114720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 0; 114820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_type &= ~PORT_TYPE_SATA; 114920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out_done; 115020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 11519dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } else if (phy->phy_type & PORT_TYPE_SAS 115220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan || phy->att_dev_info & PORT_SSP_INIT_MASK) { 115320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 1; 1154dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.device_type = 115520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_info & PORT_DEV_TYPE_MASK; 1156b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1157dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->identify.device_type == SAS_END_DEV) 1158dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.target_port_protocols = 1159dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik SAS_PROTOCOL_SSP; 1160dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik else if (phy->identify.device_type != NO_DEVICE) 1161dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.target_port_protocols = 1162dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik SAS_PROTOCOL_SMP; 116320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (oob_done) 1164dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sas_phy->oob_mode = SAS_OOB_MODE; 1165dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->frame_rcvd_size = 1166dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sizeof(struct sas_identify_frame); 1167dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 116820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(sas_phy->attached_sas_addr, 116920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan &phy->att_dev_sas_addr, SAS_ADDR_SIZE); 1170b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 117120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (MVS_CHIP_DISP->phy_work_around) 117220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_work_around(mvi, i); 1173dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 117484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d attach dev info is %x\n", 117520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy, phy->att_dev_info); 117684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d attach sas addr is %llx\n", 117720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr); 11784e52fc0a0a2ec2158691efba3f149f6416481255Ke Weiout_done: 1179dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (get_st) 118020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status); 1181b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1182b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 118320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock) 11848f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 1185dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_ha_struct *sas_ha = sas_phy->ha; 118620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; int i = 0, hi; 1187dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = sas_phy->lldd_phy; 118820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = sas_phy->port; 118920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port; 119020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 119120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!sas_port) 119220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 11938f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 119420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sas_ha->sas_phy[i]) { 119520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sas_ha->sas_phy[i] == sas_phy) 119620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 119720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 119820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 119920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy; 120020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi]; 120184fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu if (i >= mvi->chip->n_phy) 120284fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu port = &mvi->port[i - mvi->chip->n_phy]; 120320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 120484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu port = &mvi->port[i]; 120520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 120620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 1207dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 1; 1208dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->port = port; 12090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu sas_port->lldd_port = port; 1210dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 1211dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap = sas_port->phy_mask; 121220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("set wide port phy map %x\n", sas_port->phy_mask); 1213dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_update_wideport(mvi, sas_phy->id); 12148f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 121520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 121620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 1217dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1218dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 121920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock) 1220dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 12219dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev; 12229dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_phy *phy = sas_phy->lldd_phy; 12239dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_info *mvi = phy->mvi; 12249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct asd_sas_port *port = sas_phy->port; 12259dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int phy_no = 0; 12269dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 12279dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas while (phy != &mvi->phy[phy_no]) { 12289dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas phy_no++; 12299dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy_no >= MVS_MAX_PHYS) 12309dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas return; 12319dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 12329dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas list_for_each_entry(dev, &port->dev_list, dev_list_node) 123384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvs_do_release_task(phy->mvi, phy_no, dev); 12349dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1235dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1236dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1237dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 123820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_port_formed(struct asd_sas_phy *sas_phy) 123920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 124020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_formed(sas_phy, 1); 1241dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1242dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 124320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_port_deformed(struct asd_sas_phy *sas_phy) 1244dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 124520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_deformed(sas_phy, 1); 124620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 12478f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 124820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstruct mvs_device *mvs_alloc_dev(struct mvs_info *mvi) 124920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 125020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 dev; 125120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (dev = 0; dev < MVS_MAX_DEVICES; dev++) { 125220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->devices[dev].dev_type == NO_DEVICE) { 125320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->devices[dev].device_id = dev; 125420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return &mvi->devices[dev]; 125520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 12568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 12578121ed420285885654af133a6ca1919590f98917Ke Wei 125820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev == MVS_MAX_DEVICES) 125920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("max support %d devices, ignore ..\n", 126020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_MAX_DEVICES); 126120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 126220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return NULL; 12638f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 12648f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 126520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_free_dev(struct mvs_device *mvi_dev) 1266b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 126720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 id = mvi_dev->device_id; 126820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memset(mvi_dev, 0, sizeof(*mvi_dev)); 126920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id = id; 127020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_type = NO_DEVICE; 127120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_status = MVS_DEV_NORMAL; 127220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->taskfileset = MVS_ID_NOT_MAPPED; 127320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1274b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 127520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_dev_found_notify(struct domain_device *dev, int lock) 127620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 127720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 127820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int res = 0; 127920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; 128020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *parent_dev = dev->parent; 128120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *mvi_device; 1282b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 128320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = mvs_find_dev_mvi(dev); 1284b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 128520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 128620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 128720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 128820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device = mvs_alloc_dev(mvi); 128920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!mvi_device) { 129020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -1; 129120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto found_out; 1292b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1293f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan dev->lldd_dev = mvi_device; 12949dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_device->dev_status = MVS_DEV_NORMAL; 129520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device->dev_type = dev->dev_type; 12969870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan mvi_device->mvi_info = mvi; 129784fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvi_device->sas_device = dev; 129820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { 129920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int phy_id; 130020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 phy_num = parent_dev->ex_dev.num_phys; 130120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ex_phy *phy; 130220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (phy_id = 0; phy_id < phy_num; phy_id++) { 130320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy = &parent_dev->ex_dev.ex_phy[phy_id]; 130420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (SAS_ADDR(phy->attached_sas_addr) == 130520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr)) { 130620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device->attached_phy = phy_id; 130720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 130820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 130920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1310b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 131120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy_id == phy_num) { 131220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("Error: no attached dev:%016llx" 131320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "at ex:%016llx.\n", 131420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr), 131520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(parent_dev->sas_addr)); 131620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -1; 131720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1318dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1319b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 132020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanfound_out: 132120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 132220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 132320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return res; 132420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1325b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 132620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_dev_found(struct domain_device *dev) 132720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 132820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return mvs_dev_found_notify(dev, 1); 132920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1330b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13319dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_dev_gone_notify(struct domain_device *dev) 133220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 133320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 1334f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 13359870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 1336b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13379dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_lock_irqsave(&mvi->lock, flags); 1338b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 133920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi_dev) { 134020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("found dev[%d:%x] is gone.\n", 134120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id, mvi_dev->dev_type); 13429dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_release_task(mvi, dev); 134320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_reg_set(mvi, mvi_dev); 134420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_dev(mvi_dev); 134520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 134620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("found dev has gone.\n"); 1347b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 134820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev->lldd_dev = NULL; 134984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvi_dev->sas_device = NULL; 1350b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13519dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_unlock_irqrestore(&mvi->lock, flags); 1352b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1353b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1354b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 135520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_dev_gone(struct domain_device *dev) 135620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 13579dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_dev_gone_notify(dev); 135820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1359b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 136020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_task_done(struct sas_task *task) 136120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 136220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!del_timer(&task->timer)) 136320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 136420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan complete(&task->completion); 1365b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1366b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 136720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_tmf_timedout(unsigned long data) 1368b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 136920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = (struct sas_task *)data; 13708f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 137120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags |= SAS_TASK_STATE_ABORTED; 137220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan complete(&task->completion); 137320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 13748f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 137520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan#define MVS_TASK_TIMEOUT 20 137620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_exec_internal_tmf_task(struct domain_device *dev, 137720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *parameter, u32 para_len, struct mvs_tmf_task *tmf) 137820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 137920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int res, retry; 138020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = NULL; 13818f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 138220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (retry = 0; retry < 3; retry++) { 13834fcf812ca392303aa79dd50e96e83a29faa13bd0Dan Williams task = sas_alloc_task(GFP_KERNEL); 138420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!task) 138520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -ENOMEM; 13868f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 138720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->dev = dev; 138820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_proto = dev->tproto; 13898f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 139020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(&task->ssp_task, parameter, para_len); 139120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_done = mvs_task_done; 13928f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 139320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.data = (unsigned long) task; 139420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.function = mvs_tmf_timedout; 139520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; 139620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan add_timer(&task->timer); 13978f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 13980b84b7094e87769120def1e703b8b4d037281038Andy Yan res = mvs_task_exec(task, 1, GFP_KERNEL, NULL, 1, tmf); 13998f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 140020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (res) { 140120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan del_timer(&task->timer); 140220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("executing internel task failed:%d\n", res); 140320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto ex_err; 140420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 14058f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 140620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan wait_for_completion(&task->completion); 140784fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu res = TMF_RESP_FUNC_FAILED; 140820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* Even TMF timed out, return direct. */ 140920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { 141020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { 141120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("TMF task[%x] timeout.\n", tmf->tmf); 141220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto ex_err; 141320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 141420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 14158f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 141620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 1417df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley task->task_status.stat == SAM_STAT_GOOD) { 141820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = TMF_RESP_FUNC_COMPLETE; 141920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 142020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1421b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 142220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 142320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat == SAS_DATA_UNDERRUN) { 142420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* no error, but return the number of bytes of 142520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * underrun */ 142620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = task->task_status.residual; 142720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 142820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1429b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 143020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 143120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat == SAS_DATA_OVERRUN) { 143220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("blocked task error.\n"); 143320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -EMSGSIZE; 143420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 143520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 143620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk(" task to dev %016llx response: 0x%x " 143720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "status 0x%x\n", 143820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr), 143920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.resp, 144020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat); 14414fcf812ca392303aa79dd50e96e83a29faa13bd0Dan Williams sas_free_task(task); 144220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task = NULL; 1443b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1444dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1445dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 144620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanex_err: 144720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan BUG_ON(retry == 3 && task != NULL); 14484fcf812ca392303aa79dd50e96e83a29faa13bd0Dan Williams sas_free_task(task); 144920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return res; 1450dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1451b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 145220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_debug_issue_ssp_tmf(struct domain_device *dev, 145320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 *lun, struct mvs_tmf_task *tmf) 1454dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 145520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ssp_task ssp_task; 145620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(dev->tproto & SAS_PROTOCOL_SSP)) 145720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return TMF_RESP_FUNC_ESUPP; 1458b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 145984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu memcpy(ssp_task.LUN, lun, 8); 1460b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 146120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return mvs_exec_internal_tmf_task(dev, &ssp_task, 146220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(ssp_task), tmf); 146320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 14648f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 14658f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 146620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* Standard mandates link reset for ATA (type 0) 146720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan and hard reset for SSP (type 1) , only for RECOVERY */ 146820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_debug_I_T_nexus_reset(struct domain_device *dev) 146920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 147020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc; 147120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_phy *phy = sas_find_local_phy(dev); 147220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int reset_type = (dev->dev_type == SATA_DEV || 147320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; 147420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = sas_phy_reset(phy, reset_type); 147520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan msleep(2000); 147620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 147720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 14788f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 147920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* mandatory SAM-3 */ 148020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_lu_reset(struct domain_device *dev, u8 *lun) 148120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 148220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 148384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu int rc = TMF_RESP_FUNC_FAILED; 148420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 1485f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device * mvi_dev = dev->lldd_dev; 14869870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 148720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 148820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_LU_RESET; 148920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_status = MVS_DEV_EH; 149020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 149120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == TMF_RESP_FUNC_COMPLETE) { 149220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 149384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvs_release_task(mvi, dev); 149420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 1495dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 149620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* If failed, fall-through I_T_Nexus reset */ 149720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s for device[%x]:rc= %d\n", __func__, 149820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id, rc); 149920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 150020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 15018f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 150220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_I_T_nexus_reset(struct domain_device *dev) 150320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 150420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 15059dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int rc = TMF_RESP_FUNC_FAILED; 15069dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_device * mvi_dev = (struct mvs_device *)dev->lldd_dev; 15079870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 150820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 150920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi_dev->dev_status != MVS_DEV_EH) 151020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return TMF_RESP_FUNC_COMPLETE; 151184fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu else 151284fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvi_dev->dev_status = MVS_DEV_NORMAL; 151320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_I_T_nexus_reset(dev); 151420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s for device[%x]:rc= %d\n", 151520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan __func__, mvi_dev->device_id, rc); 151620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 151720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 15189dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_release_task(mvi, dev); 151920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 152020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 152120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 152220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 152320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* optional SAM-3 */ 152420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_query_task(struct sas_task *task) 152520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 152620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag; 152720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_lun lun; 152820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 152920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 153020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 153120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { 153220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; 153320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 15349870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 15359870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 153620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 153720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int_to_scsilun(cmnd->device->lun, &lun); 153820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_find_tag(mvi, task, &tag); 153920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == 0) { 154020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = TMF_RESP_FUNC_FAILED; 1541dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 154220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 15438f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 154420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_QUERY_TASK; 154520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); 15468f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 154720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); 154820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (rc) { 154920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The task is still in Lun, release it then */ 155020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_SUCC: 155120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The task is not in Lun or failed, reset the phy */ 155220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_FAILED: 155320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_COMPLETE: 155420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 155520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1556dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 155720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s:rc= %d\n", __func__, rc); 155820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 15598f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 15608f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 156120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* mandatory SAM-3, still need free task/slot info */ 156220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_abort_task(struct sas_task *task) 15638f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 156420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_lun lun; 156520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 156620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 15679870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 156824ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby struct mvs_info *mvi; 156920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 157020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 157120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag; 15729870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan 15739dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!mvi_dev) { 157484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_printk("Device has removed\n"); 157584fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu return TMF_RESP_FUNC_FAILED; 15769dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 15779dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 157824ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby mvi = mvi_dev->mvi_info; 157924ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby 158020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&task->task_state_lock, flags); 158120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_state_flags & SAS_TASK_STATE_DONE) { 158220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&task->task_state_lock, flags); 158320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = TMF_RESP_FUNC_COMPLETE; 158420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 1585dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 158620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&task->task_state_lock, flags); 15879dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->dev_status = MVS_DEV_EH; 158820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { 158920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; 159020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 159120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int_to_scsilun(cmnd->device->lun, &lun); 159220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_find_tag(mvi, task, &tag); 159320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == 0) { 159420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("No such tag in %s\n", __func__); 159520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = TMF_RESP_FUNC_FAILED; 159620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 159720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 15988f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 159920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_ABORT_TASK; 160020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); 16018f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 160220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); 16038f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 160420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* if successful, clear the task and callback forwards.*/ 160520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == TMF_RESP_FUNC_COMPLETE) { 160620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_no; 160720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot; 16088f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 160920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task) { 1610f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan slot = task->lldd_task; 161120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_no = (u32) (slot - mvi->slot_info); 16129dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_lock_irqsave(&mvi->lock, flags); 161320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, slot_no, 1); 16149dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_unlock_irqrestore(&mvi->lock, flags); 161520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 161620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 16179dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 161820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (task->task_proto & SAS_PROTOCOL_SATA || 161920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_proto & SAS_PROTOCOL_STP) { 16209dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (SATA_DEV == dev->dev_type) { 16219dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_slot_info *slot = task->lldd_task; 16229dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 slot_idx = (u32)(slot - mvi->slot_info); 162384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("mvs_abort_task() mvi=%p task=%p " 16249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas "slot=%p slot_idx=x%x\n", 16259dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi, task, slot, slot_idx); 162684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mvs_tmf_timedout((unsigned long)task); 16279dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_slot_task_free(mvi, task, slot, slot_idx); 162884fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu rc = TMF_RESP_FUNC_COMPLETE; 162984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu goto out; 16309dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 16318f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 163220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 163320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanout: 163420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc != TMF_RESP_FUNC_COMPLETE) 163520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s:rc= %d\n", __func__, rc); 1636dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 16378f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 16388f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 163920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_abort_task_set(struct domain_device *dev, u8 *lun) 16408f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 164120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 164220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 16438f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 164420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_ABORT_TASK_SET; 164520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 1646dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 164720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 16488f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 16498f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 165020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_clear_aca(struct domain_device *dev, u8 *lun) 16518f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 165220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 165320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 16548f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 165520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_CLEAR_ACA; 165620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 16578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 165820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 165920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 16608f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 166120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_clear_task_set(struct domain_device *dev, u8 *lun) 166220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 166320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 166420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 16658f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 166620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_CLEAR_TASK_SET; 166720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 16688f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 166920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 1670dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 16718f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 167220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task, 167320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx, int err) 1674dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1675f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = task->dev->lldd_dev; 167620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct task_status_struct *tstat = &task->task_status; 167720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf; 1678df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley int stat = SAM_STAT_GOOD; 1679e9ff91b6927079307b5d481a93beac4134e923ebKe Wei 16808f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 168120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan resp->frame_len = sizeof(struct dev_to_host_fis); 168220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(&resp->ending_fis[0], 168320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset), 168420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct dev_to_host_fis)); 168520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->buf_valid_size = sizeof(*resp); 16869dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(err)) { 16879dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(err & CMD_ISS_STPD)) 16889dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas stat = SAS_OPEN_REJECT; 16899dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas else 16909dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas stat = SAS_PROTO_RESPONSE; 16919dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 16929dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 169320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return stat; 16948f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 16958f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 1696a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yuvoid mvs_set_sense(u8 *buffer, int len, int d_sense, 1697a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu int key, int asc, int ascq) 1698a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu{ 1699a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu memset(buffer, 0, len); 1700a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 1701a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (d_sense) { 1702a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu /* Descriptor format */ 1703a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len < 4) { 1704a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mv_printk("Length %d of sense buffer too small to " 1705a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu "fit sense %x:%x:%x", len, key, asc, ascq); 1706a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } 1707a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 1708a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[0] = 0x72; /* Response Code */ 1709a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 1) 1710a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[1] = key; /* Sense Key */ 1711a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 2) 1712a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[2] = asc; /* ASC */ 1713a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 3) 1714a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[3] = ascq; /* ASCQ */ 1715a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } else { 1716a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len < 14) { 1717a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mv_printk("Length %d of sense buffer too small to " 1718a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu "fit sense %x:%x:%x", len, key, asc, ascq); 1719a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } 1720a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 1721a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[0] = 0x70; /* Response Code */ 1722a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 2) 1723a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[2] = key; /* Sense Key */ 1724a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 7) 1725a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[7] = 0x0a; /* Additional Sense Length */ 1726a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 12) 1727a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[12] = asc; /* ASC */ 1728a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (len > 13) 1729a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu buffer[13] = ascq; /* ASCQ */ 1730a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } 1731a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 1732a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu return; 1733a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu} 1734a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 1735a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yuvoid mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu, 1736a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu u8 key, u8 asc, u8 asc_q) 1737a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu{ 1738a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu iu->datapres = 2; 1739a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu iu->response_data_len = 0; 1740a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu iu->sense_data_len = 17; 1741a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu iu->status = 02; 1742a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mvs_set_sense(iu->sense_data, 17, 0, 1743a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu key, asc, asc_q); 1744a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu} 1745a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu 174620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task, 174720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx) 17488f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 174920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; 175020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int stat; 175184fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu u32 err_dw0 = le32_to_cpu(*(u32 *)slot->response); 1752a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu u32 err_dw1 = le32_to_cpu(*((u32 *)slot->response + 1)); 175320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tfs = 0; 175420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan enum mvs_port_type type = PORT_TYPE_SAS; 17558f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 175620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (err_dw0 & CMD_ISS_STPD) 175720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->issue_stop(mvi, type, tfs); 175820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 175920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->command_active(mvi, slot_idx); 1760b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1761df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley stat = SAM_STAT_CHECK_CONDITION; 1762dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik switch (task->task_proto) { 1763dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SSP: 1764a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu { 176520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan stat = SAS_ABORTED_TASK; 1766a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if ((err_dw0 & NO_DEST) || err_dw1 & bit(31)) { 1767a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu struct ssp_response_iu *iu = slot->response + 1768a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu sizeof(struct mvs_err_info); 1769a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mvs_fill_ssp_resp_iu(iu, NOT_READY, 0x04, 01); 1770a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu sas_ssp_task_response(mvi->dev, task, iu); 1771a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu stat = SAM_STAT_CHECK_CONDITION; 1772a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } 1773a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu if (err_dw1 & bit(31)) 1774a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mv_printk("reuse same slot, retry command.\n"); 177520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1776a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } 177720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SMP: 1778df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley stat = SAM_STAT_CHECK_CONDITION; 1779dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 178020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 1781dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SATA: 1782dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_STP: 178320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 178420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan { 178520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.use_ncq = 0; 178684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu stat = SAS_PROTO_RESPONSE; 17879dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_sata_done(mvi, task, slot_idx, err_dw0); 1788dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 178920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1790dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 1791dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1792dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1793dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 179420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return stat; 1795e9ff91b6927079307b5d481a93beac4134e923ebKe Wei} 1796e9ff91b6927079307b5d481a93beac4134e923ebKe Wei 179720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) 1798b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 179920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx = rx_desc & RXQ_SLOT_MASK; 180020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; 180120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = slot->task; 180220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *mvi_dev = NULL; 180320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct task_status_struct *tstat; 18049dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev; 18059dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 aborted; 180620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 180720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *to; 180820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan enum exec_status sts; 180920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 18109dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(!task || !task->lldd_task || !task->dev)) 181120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -1; 181220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 181320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat = &task->task_status; 18149dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas dev = task->dev; 18159dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev = dev->lldd_dev; 1816b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 181720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock(&task->task_state_lock); 181820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags &= 181920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); 182020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags |= SAS_TASK_STATE_DONE; 182120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* race condition*/ 182220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED; 182320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock(&task->task_state_lock); 182420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 182520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memset(tstat, 0, sizeof(*tstat)); 182620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->resp = SAS_TASK_COMPLETE; 182720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 182820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely(aborted)) { 182920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = SAS_ABORTED_TASK; 18309dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (mvi_dev && mvi_dev->running_req) 18319dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->running_req--; 183220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sas_protocol_ata(task->task_proto)) 183320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_reg_set(mvi, mvi_dev); 183420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 183520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_task_free(mvi, task, slot, slot_idx); 183620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -1; 1837b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1838b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1839e144f7ef49ec85e9dfdf130f3a9a2372fe5fe39bXiangliang Yu /* when no device attaching, go ahead and complete by error handling*/ 18409dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(!mvi_dev || flags)) { 18419dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!mvi_dev) 18429dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_dprintk("port has not device.\n"); 184320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = SAS_PHY_DOWN; 184420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 184520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1846b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 184720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* error info record present */ 184820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) { 184984fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("port %d slot %d rx_desc %X has error info" 185084fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu "%016llX.\n", slot->port->sas_port.id, slot_idx, 185184fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu rx_desc, (u64)(*(u64 *)slot->response)); 185220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = mvs_slot_err(mvi, task, slot_idx); 18539dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat->resp = SAS_TASK_COMPLETE; 185420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 1855b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1856b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 185720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (task->task_proto) { 185820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SSP: 185920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* hw says status == 0, datapres == 0 */ 186020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rx_desc & RXQ_GOOD) { 1861df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_GOOD; 186220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->resp = SAS_TASK_COMPLETE; 186320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 186420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* response frame present */ 186520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else if (rx_desc & RXQ_RSP) { 186620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ssp_response_iu *iu = slot->response + 186720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct mvs_err_info); 186820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ssp_task_response(mvi->dev, task, iu); 186920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else 1870df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_CHECK_CONDITION; 187120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1872b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 187320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SMP: { 187420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scatterlist *sg_resp = &task->smp_task.smp_resp; 1875df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_GOOD; 187620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan to = kmap_atomic(sg_page(sg_resp), KM_IRQ0); 187720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(to + sg_resp->offset, 187820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot->response + sizeof(struct mvs_err_info), 187920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sg_dma_len(sg_resp)); 188020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan kunmap_atomic(to, KM_IRQ0); 188120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 188220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 18838f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 188420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA: 188520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_STP: 188620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: { 188720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0); 188820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 188920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1890b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 189120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan default: 1892df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_CHECK_CONDITION; 189320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 189420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 18959dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!slot->port->port_attached) { 18969dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_dprintk("port %d has removed.\n", slot->port->sas_port.id); 18979dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat->stat = SAS_PHY_DOWN; 18989dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 18999dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1900b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 190120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanout: 19029dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (mvi_dev && mvi_dev->running_req) { 19039dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->running_req--; 19049dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req) 19050f980a871678b7ec143fcb45b31bf9234e4585c8Andy Yan mvs_free_reg_set(mvi, mvi_dev); 19060f980a871678b7ec143fcb45b31bf9234e4585c8Andy Yan } 190720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_task_free(mvi, task, slot, slot_idx); 190820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sts = tstat->stat; 19098f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 191020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock(&mvi->lock); 191120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_done) 191220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_done(task); 191384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu 191420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock(&mvi->lock); 1915b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 191620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return sts; 191720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1918b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 19199dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_do_release_task(struct mvs_info *mvi, 192020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int phy_no, struct domain_device *dev) 192120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 19229dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 slot_idx; 192320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy; 192420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port; 192520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot, *slot2; 1926b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 192720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy = &mvi->phy[phy_no]; 192820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan port = phy->port; 192920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!port) 193020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 19319dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas /* clean cmpl queue in case request is already finished */ 19329dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_int_rx(mvi, false); 19339dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 19349dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1935b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 193620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_for_each_entry_safe(slot, slot2, &port->list, entry) { 193720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task; 193820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_idx = (u32) (slot - mvi->slot_info); 193920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task = slot->task; 1940b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 194120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev && task->dev != dev) 194220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan continue; 19438f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 194420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("Release slot [%x] tag[%x], task [%p]:\n", 194520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_idx, slot->slot_tag, task); 19469dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas MVS_CHIP_DISP->command_active(mvi, slot_idx); 1947b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 194820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, slot_idx, 1); 1949b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 195020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1951b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 19529dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_release_task(struct mvs_info *mvi, 19539dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev) 19549dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas{ 19559dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int i, phyno[WIDE_PORT_MAX_PHY], num; 19569dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas num = mvs_find_dev_phyno(dev, phyno); 19579dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas for (i = 0; i < num; i++) 19589dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_do_release_task(mvi, phyno[i], dev); 19599dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas} 19609dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 196120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_phy_disconnected(struct mvs_phy *phy) 196220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 196320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 0; 196420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_info = 0; 196520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_sas_addr = 0; 196620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 196720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 196820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_work_queue(struct work_struct *work) 196920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 197020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct delayed_work *dw = container_of(work, struct delayed_work, work); 197120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q); 197220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = mwq->mvi; 197320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 1974a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu u32 phy_no = (unsigned long) mwq->data; 1975a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu struct sas_ha_struct *sas_ha = mvi->sas; 1976a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu struct mvs_phy *phy = &mvi->phy[phy_no]; 1977a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu struct asd_sas_phy *sas_phy = &phy->sas_phy; 1978b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 197920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 198020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mwq->handler & PHY_PLUG_EVENT) { 198120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 198220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_event & PHY_PLUG_OUT) { 198320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 198420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_identify_frame *id; 198520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan id = (struct sas_identify_frame *)phy->frame_rcvd; 198620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no); 198720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event &= ~PHY_PLUG_OUT; 198820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(tmp & PHY_READY_MASK)) { 198920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy_disconnected(sas_phy); 199020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_phy_disconnected(phy); 199120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha->notify_phy_event(sas_phy, 199220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYE_LOSS_OF_SIGNAL); 199320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy%d Removed Device\n", phy_no); 199420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 199520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->detect_porttype(mvi, phy_no); 199620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_update_phyinfo(mvi, phy_no, 1); 199720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, phy_no); 199820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_formed(sas_phy, 0); 199920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy%d Attached Device\n", phy_no); 200020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 200120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2002a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu } else if (mwq->handler & EXP_BRCT_CHG) { 2003a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu phy->phy_event &= ~EXP_BRCT_CHG; 2004a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu sas_ha->notify_port_event(sas_phy, 2005a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu PORTE_BROADCAST_RCVD); 2006a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mv_dprintk("phy%d Got Broadcast Change\n", phy_no); 200720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 200820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_del(&mwq->entry); 200920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 201020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan kfree(mwq); 201120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 20128f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 201320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_handle_event(struct mvs_info *mvi, void *data, int handler) 201420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 201520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_wq *mwq; 201620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int ret = 0; 201720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 201820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC); 201920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mwq) { 202020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->mvi = mvi; 202120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->data = data; 202220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->handler = handler; 202320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq); 202420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_add_tail(&mwq->entry, &mvi->wq_list); 202520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan schedule_delayed_work(&mwq->work_q, HZ * 2); 202620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else 202720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ret = -ENOMEM; 202820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 202920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return ret; 203020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 2031b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 203220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_sig_time_out(unsigned long tphy) 203320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 203420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy = (struct mvs_phy *)tphy; 203520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = phy->mvi; 203620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 phy_no; 203720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 203820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) { 203920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (&mvi->phy[phy_no] == phy) { 204020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("Get signature time out, reset phy %d\n", 204120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no+mvi->id*mvi->chip->n_phy); 2042a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_HARD_RESET); 204320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2044b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 204520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 2046b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 204720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events) 204820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 204920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 205020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy = &mvi->phy[phy_no]; 20518f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 205220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no); 205384fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status); 205484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d ctrl sts=0x%08X.\n", phy_no+mvi->id*mvi->chip->n_phy, 205520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no)); 205684fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d irq sts = 0x%08X\n", phy_no+mvi->id*mvi->chip->n_phy, 205720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status); 20588f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 205920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* 206020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * events is port event now , 206120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * we need check the interrupt status which belongs to per port. 206220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 2063b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 20649dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy->irq_status & PHYEV_DCDR_ERR) { 206584fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d STP decoding error.\n", 20669dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas phy_no + mvi->id*mvi->chip->n_phy); 20679dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 206820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 206920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & PHYEV_POOF) { 207084fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mdelay(500); 207120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy->phy_event & PHY_PLUG_OUT)) { 207220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int dev_sata = phy->phy_type & PORT_TYPE_SATA; 207320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int ready; 20749dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_do_release_task(mvi, phy_no, NULL); 207520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event |= PHY_PLUG_OUT; 20769dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1); 207720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_handle_event(mvi, 207820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (void *)(unsigned long)phy_no, 207920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHY_PLUG_EVENT); 208020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ready = mvs_is_phy_ready(mvi, phy_no); 208120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (ready || dev_sata) { 208220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (MVS_CHIP_DISP->stp_reset) 208320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->stp_reset(mvi, 208420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no); 208520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 208620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, 2087a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu phy_no, MVS_SOFT_RESET); 208820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 208920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 209020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 209120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2092b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 209320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & PHYEV_COMWAKE) { 209420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no); 209520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no, 209620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp | PHYEV_SIG_FIS); 209720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->timer.function == NULL) { 209820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->timer.data = (unsigned long)phy; 209920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->timer.function = mvs_sig_time_out; 210084fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu phy->timer.expires = jiffies + 5*HZ; 210120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan add_timer(&phy->timer); 210220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 210320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 210420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) { 210520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_status = mvs_is_phy_ready(mvi, phy_no); 210620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("notify plug in on phy[%d]\n", phy_no); 210720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_status) { 210820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mdelay(10); 210920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->detect_porttype(mvi, phy_no); 211020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_type & PORT_TYPE_SATA) { 211120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask( 211220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi, phy_no); 211320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp &= ~PHYEV_SIG_FIS; 211420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, 211520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no, tmp); 211620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 211720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_update_phyinfo(mvi, phy_no, 0); 21189dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy->phy_type & PORT_TYPE_SAS) { 2119a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_PHY_TUNE); 21209dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mdelay(10); 21219dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 21229dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 212320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, phy_no); 212420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* whether driver is going to handle hot plug */ 212520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_event & PHY_PLUG_OUT) { 2126a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mvs_port_notify_formed(&phy->sas_phy, 0); 212720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event &= ~PHY_PLUG_OUT; 212820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 212920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 213020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("plugin interrupt but phy%d is gone\n", 213120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no + mvi->id*mvi->chip->n_phy); 213220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 213320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (phy->irq_status & PHYEV_BROAD_CH) { 213484fbd0cea11b80d7b7097343d5262004d42b8a9aXiangliang Yu mv_dprintk("phy %d broadcast change.\n", 213520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no + mvi->id*mvi->chip->n_phy); 2136a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu mvs_handle_event(mvi, (void *)(unsigned long)phy_no, 2137a4632aae8b662b1f32fe3fc558a813cd5c3daae6Xiangliang Yu EXP_BRCT_CHG); 213820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2139b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 2140b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 214120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_int_rx(struct mvs_info *mvi, bool self_clear) 2142b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 214320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 rx_prod_idx, rx_desc; 214420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan bool attn = false; 2145b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 214620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* the first dword in the RX ring is special: it contains 214720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * a mirror of the hardware's RX producer index, so that 214820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * we don't have to stall the CPU reading that register. 214920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * The actual RX ring is offset by one dword, due to this. 215020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 215120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_prod_idx = mvi->rx_cons; 215220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->rx_cons = le32_to_cpu(mvi->rx[0]); 215320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */ 215420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 2155b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 215620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The CMPL_Q may come late, read from register and try again 215720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * note: if coalescing is enabled, 215820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * it will need to read from register every time for sure 215920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 216020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely(mvi->rx_cons == rx_prod_idx)) 216120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK; 216220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 216320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->rx_cons == rx_prod_idx) 216420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 216520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 216620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (mvi->rx_cons != rx_prod_idx) { 216720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* increment our internal RX consumer pointer */ 216820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1); 216920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]); 217020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 217120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (likely(rx_desc & RXQ_DONE)) 217220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, rx_desc, 0); 217320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rx_desc & RXQ_ATTN) { 217420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan attn = true; 217520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (rx_desc & RXQ_ERR) { 217620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(rx_desc & RXQ_DONE)) 217720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, rx_desc, 0); 217820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (rx_desc & RXQ_SLOT_RESET) { 217920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_free(mvi, rx_desc); 218020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 218120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 218220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 218320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (attn && self_clear) 218420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->int_full(mvi); 218520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 2186b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 2187b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 2188