mv_sas.c revision b89e8f539ff8bcf2a1464578fa91cb96cc433fc3
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 Yan/* FIXME */ 10620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_find_dev_phyno(struct domain_device *dev, int *phyno) 10720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 10820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long i = 0, j = 0, n = 0, num = 0; 1099870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 1109870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 11120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = dev->port->ha; 11220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 11320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_port[i]) { 11420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_port[i] == dev->port) { 11520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *phy; 11620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_for_each_entry(phy, 11720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan &sha->sas_port[i]->phy_list, port_phy_el) { 11820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j = 0; 11920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_phy[j]) { 12020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_phy[j] == phy) 12120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 12220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan j++; 12320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 12420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phyno[n] = (j >= mvi->chip->n_phy) ? 12520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (j - mvi->chip->n_phy) : j; 12620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan num++; 12720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan n++; 128dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 129dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 130dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 13120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 13220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 13320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return num; 13420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 13520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 136534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yustruct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi, 137534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu u8 reg_set) 138534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu{ 139534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu u32 dev_no; 140534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) { 141534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED) 142534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu continue; 143534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu 144534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu if (mvi->devices[dev_no].taskfileset == reg_set) 145534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu return &mvi->devices[dev_no]; 146534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu } 147534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu return NULL; 148534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu} 149534ff10104427ccad071ef87ae7017d47d08e50bXiangliang Yu 15020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic inline void mvs_free_reg_set(struct mvs_info *mvi, 15120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *dev) 15220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 15320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!dev) { 15420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("device has been free.\n"); 15520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 15620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 15720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev->taskfileset == MVS_ID_NOT_MAPPED) 15820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 15920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->free_reg_set(mvi, &dev->taskfileset); 16020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 16120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 16220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic inline u8 mvs_assign_reg_set(struct mvs_info *mvi, 16320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *dev) 16420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 16520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev->taskfileset != MVS_ID_NOT_MAPPED) 16620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 16720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return MVS_CHIP_DISP->assign_reg_set(mvi, &dev->taskfileset); 16820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 16920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 17020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard) 17120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 17220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 no; 17320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for_each_phy(phy_mask, phy_mask, no) { 17420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy_mask & 1)) 17520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan continue; 17620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, no, hard); 17720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 17820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 17920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 18020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* FIXME: locking? */ 18120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, 18220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *funcdata) 18320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 18420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = 0, phy_id = sas_phy->id; 18520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp, i = 0, hi; 18620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = sas_phy->ha; 18720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; 18820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 18920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sha->sas_phy[i]) { 19020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sha->sas_phy[i] == sas_phy) 19120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 19220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 19320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 19420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hi = i/((struct mvs_prv_info *)sha->lldd_ha)->n_phy; 19520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi]; 19620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 19720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (func) { 19820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case PHY_FUNC_SET_LINK_RATE: 19920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_set_link_rate(mvi, phy_id, funcdata); 20020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 2018f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 202dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_HARD_RESET: 20320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_id); 204dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (tmp & PHY_RST_HARD) 205dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 20620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, phy_id, 1); 207dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 208b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 209dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_LINK_RESET: 21020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_enable(mvi, phy_id); 21120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, phy_id, 0); 212dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 213b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 214dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_DISABLE: 21520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_disable(mvi, phy_id); 21620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 217dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case PHY_FUNC_RELEASE_SPINUP_HOLD: 218dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 219dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -EOPNOTSUPP; 220b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 22120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan msleep(200); 222b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return rc; 223b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 224b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 22520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid __devinit mvs_set_sas_addr(struct mvs_info *mvi, int port_id, 22620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 off_lo, u32 off_hi, u64 sas_addr) 22720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 22820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 lo = (u32)sas_addr; 22920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 hi = (u32)(sas_addr>>32); 23020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 23120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_lo); 23220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, lo); 23320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_hi); 23420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, hi); 23520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 23620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 237dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_bytes_dmaed(struct mvs_info *mvi, int i) 238ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei{ 239dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 24020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &phy->sas_phy; 24120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sas_ha; 242dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!phy->phy_attached) 243dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return; 244dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 24520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy->att_dev_info & PORT_DEV_TRGT_MASK) 24620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan && phy->phy_type & PORT_TYPE_SAS) { 24720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 24820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 24920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 25020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha = mvi->sas; 25120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); 25220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 253dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (sas_phy->phy) { 254dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_phy *sphy = sas_phy->phy; 255dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 256dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->negotiated_linkrate = sas_phy->linkrate; 257dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->minimum_linkrate = phy->minimum_linkrate; 258dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS; 259dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sphy->maximum_linkrate = phy->maximum_linkrate; 26020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sphy->maximum_linkrate_hw = MVS_CHIP_DISP->phy_max_link_rate(); 261ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei } 262ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei 263dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 264dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_identify_frame *id; 265b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 266dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id = (struct sas_identify_frame *)phy->frame_rcvd; 267dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->dev_type = phy->identify.device_type; 268dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->initiator_bits = SAS_PROTOCOL_ALL; 269dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik id->target_bits = phy->identify.target_port_protocols; 270dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else if (phy->phy_type & PORT_TYPE_SATA) { 27120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /*Nothing*/ 272dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 27320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy %d byte dmaded.\n", i + mvi->id * mvi->chip->n_phy); 27420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 27520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy->frame_rcvd_size = phy->frame_rcvd_size; 27620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 27720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->sas->notify_port_event(sas_phy, 278dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PORTE_BYTES_DMAED); 279ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei} 280ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei 28120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_slave_alloc(struct scsi_device *scsi_dev) 28220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 28320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = sdev_to_domain_dev(scsi_dev); 28420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev_is_sata(dev)) { 28520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* We don't need to rescan targets 28620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * if REPORT_LUNS request is failed 28720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 28820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (scsi_dev->lun > 0) 28920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -ENXIO; 29020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan scsi_dev->tagged_supported = 1; 29120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 29220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 29320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return sas_slave_alloc(scsi_dev); 29420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 29520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 296dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikint mvs_slave_configure(struct scsi_device *sdev) 297ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei{ 298dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct domain_device *dev = sdev_to_domain_dev(sdev); 299dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int ret = sas_slave_configure(sdev); 300b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 301dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (ret) 302dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return ret; 303dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (dev_is_sata(dev)) { 304dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 305ee1f1c2ef95258351e1ecb89a2dbd2763cb3a6edKe Wei return 0; 306b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 307b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 308dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikvoid mvs_scan_start(struct Scsi_Host *shost) 309b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 31020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int i, j; 31120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned short core_nr; 31220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi; 31320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost); 31420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 31520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host; 316dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 31720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (j = 0; j < core_nr; j++) { 31820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j]; 31920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (i = 0; i < mvi->chip->n_phy; ++i) 32020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, i); 321dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 322b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 323b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 324dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikint mvs_scan_finished(struct Scsi_Host *shost, unsigned long time) 325b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 326dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* give the phy enabling interrupt event time to come in (1s 327dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * is empirically about all it takes) */ 328dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (time < HZ) 329dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 330dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* Wait for discovery to finish */ 331dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik scsi_flush_work(shost); 332dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 1; 333b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 334b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 335dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic int mvs_task_prep_smp(struct mvs_info *mvi, 336dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_task_exec_info *tei) 337b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 338dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int elem, rc, i; 339dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_task *task = tei->task; 340dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 34120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 34220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = dev->port; 343dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct scatterlist *sg_req, *sg_resp; 344dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 req_len, resp_len, tag = tei->tag; 345dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik void *buf_tmp; 346dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u8 *buf_oaf; 347dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik dma_addr_t buf_tmp_dma; 34820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 349dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_slot_info *slot = &mvi->slot_info[tag]; 350dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); 351b89e8f539ff8bcf2a1464578fa91cb96cc433fc3Xiangliang Yu 352dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 353dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * DMA-map SMP request, response buffers 354dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 355dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sg_req = &task->smp_task.smp_req; 35620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE); 357dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!elem) 358dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return -ENOMEM; 359dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik req_len = sg_dma_len(sg_req); 360b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 361dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sg_resp = &task->smp_task.smp_resp; 36220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE); 363dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!elem) { 364dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -ENOMEM; 365dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik goto err_out; 366dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 36720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan resp_len = SB_RFB_MAX; 368b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 369dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* must be in dwords */ 370dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if ((req_len & 0x3) || (resp_len & 0x3)) { 371dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik rc = -EINVAL; 372dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik goto err_out_2; 373b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 374b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 375dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 376dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 377dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 378b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 37920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */ 380dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp = slot->buf; 381dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma = slot->buf_dma; 382b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 383dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req)); 384b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 385dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 386dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_oaf = buf_tmp; 387dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 388b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 389dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp += MVS_OAF_SZ; 390dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 391b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 39220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* region 3: PRD table *********************************** */ 393dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_prd = buf_tmp; 394dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (tei->n_elem) 395dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 396dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik else 397dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->prd_tbl = 0; 398b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 39920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * tei->n_elem; 400dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp += i; 401dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik buf_tmp_dma += i; 402b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 403dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 404dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->response = buf_tmp; 405dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 40620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 40720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 408b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 409dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* 410dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik * Fill in TX ring and command slot header 411dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik */ 412dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->tx = mvi->tx_prod; 413dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) | 414dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik TXQ_MODE_I | tag | 415dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik (sas_port->phy_mask << TXQ_PHY_SHIFT)); 416b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 417dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->flags |= flags; 418dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4)); 419dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->tags = cpu_to_le32(tag); 420dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik hdr->data_len = 0; 421b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 422dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* generate open address frame hdr (first 12 bytes) */ 42320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, SMP, ftype 1h */ 42420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01; 42520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[1] = dev->linkrate & 0xf; 426dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */ 42720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 428dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 429dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* fill in PRD (scatter/gather) table, if any */ 43020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 431b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 432b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 433b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 434dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out_2: 43520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1, 436dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_FROMDEVICE); 437b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzikerr_out: 43820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1, 439dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_TODEVICE); 440b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return rc; 4418f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 4428f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 443dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) 4448f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 445dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct ata_queued_cmd *qc = task->uldd_task; 4468f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 447dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (qc) { 448dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (qc->tf.command == ATA_CMD_FPDMA_WRITE || 449dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik qc->tf.command == ATA_CMD_FPDMA_READ) { 450dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik *tag = qc->tag; 451dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 1; 452dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 4538f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 4548f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 455dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 4568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 4578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 458dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic int mvs_task_prep_ata(struct mvs_info *mvi, 459dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_task_exec_info *tei) 460b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 461b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct sas_task *task = tei->task; 462b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct domain_device *dev = task->dev; 463f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 464b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 465b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct asd_sas_port *sas_port = dev->port; 4668f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct mvs_slot_info *slot; 46720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 46820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag = tei->tag, hdr_tag; 46920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 flags, del_q; 470b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik void *buf_tmp; 471b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u8 *buf_cmd, *buf_oaf; 472b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik dma_addr_t buf_tmp_dma; 4738f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei u32 i, req_len, resp_len; 4748f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei const u32 max_resp_len = SB_RFB_MAX; 4758f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 47620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) { 47720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("Have not enough regiset for dev %d.\n", 47820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id); 4798f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei return -EBUSY; 48020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 4818f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot = &mvi->slot_info[tag]; 4828f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot->tx = mvi->tx_prod; 48320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan del_q = TXQ_MODE_I | tag | 48420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (TXQ_CMD_STP << TXQ_CMD_SHIFT) | 48520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (sas_port->phy_mask << TXQ_PHY_SHIFT) | 48620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (mvi_dev->taskfileset << TXQ_SRS_SHIFT); 48720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); 48820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 48920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->data_dir == DMA_FROM_DEVICE) 49020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT); 49120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 49220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan flags = (tei->n_elem << MCH_PRD_LEN_SHIFT); 4938882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 494b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik if (task->ata_task.use_ncq) 495b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags |= MCH_FPDMA; 4968f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) { 4978f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI) 4988f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei flags |= MCH_ATAPI; 4998f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 5008f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 501b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* FIXME: fill in port multiplier number */ 502b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 503b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->flags = cpu_to_le32(flags); 5048f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 5058f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* FIXME: the low order order 5 bits for the TAG if enable NCQ */ 50620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag)) 50720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3); 5084e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei else 50920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr_tag = tag; 51020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 51120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->tags = cpu_to_le32(hdr_tag); 51220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 513b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->data_len = cpu_to_le32(task->total_xfer_len); 514b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 515b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* 516b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 517b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik */ 518b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5198f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */ 5208f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei buf_cmd = buf_tmp = slot->buf; 521b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma = slot->buf_dma; 522b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 523b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); 524b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 525b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_ATA_CMD_SZ; 526b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_ATA_CMD_SZ; 527b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5288f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 529b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* used for STP. unused for SATA? */ 530b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_oaf = buf_tmp; 531b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 532b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 533b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_OAF_SZ; 534b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 535b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5368f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 3: PRD table ********************************************* */ 537b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_prd = buf_tmp; 53820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 5398f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (tei->n_elem) 5408f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 5418f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei else 5428f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = 0; 54320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count(); 544b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 545b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += i; 546b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += i; 547b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5488f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 549b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* FIXME: probably unused, for SATA. kept here just in case 550b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik * we get a STP/SATA error information record 551b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik */ 552b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot->response = buf_tmp; 553b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 55420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 55520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 556b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 5578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei req_len = sizeof(struct host_to_dev_fis); 558b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ - 5598f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei sizeof(struct mvs_err_info) - i; 560b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 561b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* request, response lengths */ 5628f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei resp_len = min(resp_len, max_resp_len); 563b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); 564b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 56520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (likely(!task->ata_task.device_control_reg_update)) 56620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */ 567b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* fill in command FIS and ATAPI CDB */ 5688f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis)); 5698f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (dev->sata_dev.command_set == ATAPI_COMMAND_SET) 5708f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei memcpy(buf_cmd + STP_ATAPI_CMD, 5718f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei task->ata_task.atapi_packet, 16); 5728f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 5738f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* generate open address frame hdr (first 12 bytes) */ 57420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, STP, ftype 1h */ 57520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1; 57620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[1] = dev->linkrate & 0xf; 57720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); 57820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 579b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 580b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* fill in PRD (scatter/gather) table, if any */ 58120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 5828882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 58320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->data_dir == DMA_FROM_DEVICE) 5848882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask, 58520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan TRASH_BUCKET_SIZE, tei->n_elem, buf_prd); 5868882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 587b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 588b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 589b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 590b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzikstatic int mvs_task_prep_ssp(struct mvs_info *mvi, 59120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_task_exec_info *tei, int is_tmf, 59220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task *tmf) 593b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 594b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct sas_task *task = tei->task; 595b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_cmd_hdr *hdr = tei->hdr; 5968f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct mvs_port *port = tei->port; 59720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 598f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 59920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = dev->port; 600b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_slot_info *slot; 60120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *buf_prd; 602b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct ssp_frame_hdr *ssp_hdr; 603b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik void *buf_tmp; 604b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u8 *buf_cmd, *buf_oaf, fburst = 0; 605b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik dma_addr_t buf_tmp_dma; 606b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik u32 flags; 6078f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei u32 resp_len, req_len, i, tag = tei->tag; 6088f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei const u32 max_resp_len = SB_RFB_MAX; 60920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 phy_mask; 610b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 611b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot = &mvi->slot_info[tag]; 612b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 61320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap : 61420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_port->phy_mask) & TXQ_PHY_MASK; 61520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 6168f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei slot->tx = mvi->tx_prod; 6178f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag | 6188f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei (TXQ_CMD_SSP << TXQ_CMD_SHIFT) | 6194e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei (phy_mask << TXQ_PHY_SHIFT)); 620b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 621b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags = MCH_RETRY; 622b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik if (task->ssp_task.enable_first_burst) { 623b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik flags |= MCH_FBURST; 624b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik fburst = (1 << 7); 625b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 6262b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan if (is_tmf) 6272b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT); 6282b288133ab6306b1761e0a2ef943b944ead6ad69Andy Yan hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT)); 629b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->tags = cpu_to_le32(tag); 630b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->data_len = cpu_to_le32(task->total_xfer_len); 631b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 632b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* 633b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs 634b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik */ 635b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6368f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */ 6378f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei buf_cmd = buf_tmp = slot->buf; 638b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma = slot->buf_dma; 639b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 640b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma); 641b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 642b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_SSP_CMD_SZ; 643b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_SSP_CMD_SZ; 644b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6458f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */ 646b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_oaf = buf_tmp; 647b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->open_frame = cpu_to_le64(buf_tmp_dma); 648b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 649b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += MVS_OAF_SZ; 650b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += MVS_OAF_SZ; 651b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6528f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 3: PRD table ********************************************* */ 653b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_prd = buf_tmp; 6548f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei if (tei->n_elem) 6558f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = cpu_to_le64(buf_tmp_dma); 6568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei else 6578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei hdr->prd_tbl = 0; 658b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 65920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i = MVS_CHIP_DISP->prd_size() * tei->n_elem; 660b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp += i; 661b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_tmp_dma += i; 662b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6638f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* region 4: status buffer (larger the PRD, smaller this buf) ****** */ 664b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik slot->response = buf_tmp; 665b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->status_buf = cpu_to_le64(buf_tmp_dma); 66620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->flags & MVF_FLAG_SOC) 66720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hdr->reserved[0] = 0; 668b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 669b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ - 6708f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei sizeof(struct mvs_err_info) - i; 6718f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei resp_len = min(resp_len, max_resp_len); 6728f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 6738f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei req_len = sizeof(struct ssp_frame_hdr) + 28; 674b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 675b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* request, response lengths */ 676b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4)); 677b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 678b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik /* generate open address frame hdr (first 12 bytes) */ 67920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* initiator, SSP, ftype 1h */ 68020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1; 68120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_oaf[1] = dev->linkrate & 0xf; 68220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan *(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1); 68320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE); 684b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 6858f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei /* fill in SSP frame header (Command Table.SSP frame header) */ 6868f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei ssp_hdr = (struct ssp_frame_hdr *)buf_cmd; 68720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 68820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (is_tmf) 68920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ssp_hdr->frame_type = SSP_TASK; 69020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 69120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ssp_hdr->frame_type = SSP_COMMAND; 69220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 69320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr, 694b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik HASHED_SAS_ADDR_SIZE); 695b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik memcpy(ssp_hdr->hashed_src_addr, 69620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE); 697b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik ssp_hdr->tag = cpu_to_be16(tag); 698b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 69920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* fill in IU for TASK and Command Frame */ 700b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik buf_cmd += sizeof(*ssp_hdr); 701b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik memcpy(buf_cmd, &task->ssp_task.LUN, 8); 702b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 70320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (ssp_hdr->frame_type != SSP_TASK) { 70420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[9] = fburst | task->ssp_task.task_attr | 70520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (task->ssp_task.task_prio << 3); 70620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(buf_cmd + 12, &task->ssp_task.cdb, 16); 70720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else{ 70820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[10] = tmf->tmf; 70920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (tmf->tmf) { 71020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_ABORT_TASK: 71120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_QUERY_TASK: 71220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[12] = 71320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (tmf->tag_of_task_to_be_managed >> 8) & 0xff; 71420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan buf_cmd[13] = 71520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf->tag_of_task_to_be_managed & 0xff; 71620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 71720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan default: 71820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 71920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 720b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 72120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* fill in PRD (scatter/gather) table, if any */ 72220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd); 723b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik return 0; 724b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 725b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 72620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan#define DEV_IS_GONE(mvi_dev) ((!mvi_dev || (mvi_dev->dev_type == NO_DEVICE))) 7270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf, 7280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf, int *pass) 729b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 7308f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei struct domain_device *dev = task->dev; 7310b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_device *mvi_dev = dev->lldd_dev; 732b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik struct mvs_task_exec_info tei; 7334e52fc0a0a2ec2158691efba3f149f6416481255Ke Wei struct mvs_slot_info *slot; 7340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 tag = 0xdeadbeef, n_elem = 0; 7350b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu int rc = 0; 736b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 73720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!dev->port) { 7380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *tsm = &task->task_status; 73920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 74020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tsm->resp = SAS_TASK_UNDELIVERED; 74120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tsm->stat = SAS_PHY_DOWN; 7420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu /* 7430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu * libsas will use dev->port, should 7440b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu * not call task_done for sata 7450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu */ 7469dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (dev->dev_type != SATA_DEV) 7470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 7480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 74920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 75020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7510b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (DEV_IS_GONE(mvi_dev)) { 7520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (mvi_dev) 7530b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("device %d not ready.\n", 7540b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi_dev->device_id); 7550b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 7560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("device %016llx not ready.\n", 7570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu SAS_ADDR(dev->sas_addr)); 75820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 75920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = SAS_PHY_DOWN; 7600b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 7610b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.port = dev->port->lldd_port; 7630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (tei.port && !tei.port->port_attached && !tmf) { 7640b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (sas_protocol_ata(task->task_proto)) { 7650b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *ts = &task->task_status; 7660b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("SATA/STP port %d does not attach" 7670b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "device.\n", dev->port->id); 7680b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->resp = SAS_TASK_COMPLETE; 7690b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->stat = SAS_PHY_DOWN; 77020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 772dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 773dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else { 7740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct task_status_struct *ts = &task->task_status; 7750b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("SAS port %d does not attach" 7760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "device.\n", dev->port->id); 7770b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->resp = SAS_TASK_UNDELIVERED; 7780b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ts->stat = SAS_PHY_DOWN; 7790b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_done(task); 780dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 7810b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 7820b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 783dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 7840b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!sas_protocol_ata(task->task_proto)) { 7850b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (task->num_scatter) { 7860b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu n_elem = dma_map_sg(mvi->dev, 7870b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->scatter, 7880b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->num_scatter, 7890b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->data_dir); 7900b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!n_elem) { 7910b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -ENOMEM; 7920b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto prep_out; 7930b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7940b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 7950b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } else { 7960b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu n_elem = task->num_scatter; 7970b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 79820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 7990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_tag_alloc(mvi, &tag); 8000b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 8010b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out; 80220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 8030b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot = &mvi->slot_info[tag]; 80420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 8050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->lldd_task = NULL; 8060b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->n_elem = n_elem; 8070b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->slot_tag = tag; 8080b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->buf = pci_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma); 8100b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!slot->buf) 8110b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out_tag; 8120b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu memset(slot->buf, 0, MVS_SLOT_BUF_SZ); 8130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.task = task; 8150b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.hdr = &mvi->slot[tag]; 8160b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.tag = tag; 8170b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu tei.n_elem = n_elem; 8180b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu switch (task->task_proto) { 8190b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SMP: 8200b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_smp(mvi, &tei); 8210b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8220b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SSP: 8230b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf); 8240b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8250b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SATA: 8260b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_STP: 8270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 8280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep_ata(mvi, &tei); 8290b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8300b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu default: 8310b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, 8320b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu "unknown sas_task proto: 0x%x\n", 8330b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_proto); 8340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -EINVAL; 8350b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8360b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 837dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 8380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) { 8390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mv_dprintk("rc is %x\n", rc); 8400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto err_out_slot_buf; 8410b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 8420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->task = task; 8430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->port = tei.port; 8440b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->lldd_task = slot; 8450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_add_tail(&slot->entry, &tei.port->list); 8460b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock(&task->task_state_lock); 8470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->task_state_flags |= SAS_TASK_AT_INITIATOR; 8480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock(&task->task_state_lock); 8490b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8500b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi_dev->running_req++; 8510b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu ++(*pass); 8520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1); 8539dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 8540b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 855dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 8560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yuerr_out_slot_buf: 8570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); 858dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out_tag: 859dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_free(mvi, tag); 860dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikerr_out: 86120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 8620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc); 8630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!sas_protocol_ata(task->task_proto)) 864dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (n_elem) 8650b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dma_unmap_sg(mvi->dev, task->scatter, n_elem, 8660b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu task->data_dir); 8670b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yuprep_out: 8680b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 8690b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 8700b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic struct mvs_task_list *mvs_task_alloc_list(int *num, gfp_t gfp_flags) 8720b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 8730b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *first = NULL; 8740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8750b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu for (; *num > 0; --*num) { 8760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mvs_list = kmem_cache_zalloc(mvs_task_list_cache, gfp_flags); 8770b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8780b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!mvs_list) 8790b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu break; 8800b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8810b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu INIT_LIST_HEAD(&mvs_list->list); 8820b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (!first) 8830b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu first = mvs_list; 8840b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 8850b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_add_tail(&mvs_list->list, &first->list); 8860b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8870b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 8880b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8890b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return first; 8900b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 8910b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8920b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic inline void mvs_task_free_list(struct mvs_task_list *mvs_list) 8930b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 8940b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu LIST_HEAD(list); 8950b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct list_head *pos, *a; 8960b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mlist = NULL; 8970b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 8980b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu __list_add(&list, mvs_list->list.prev, &mvs_list->list); 8990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9000b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_safe(pos, a, &list) { 9010b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_del_init(pos); 9020b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mlist = list_entry(pos, struct mvs_task_list, list); 9030b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu kmem_cache_free(mvs_task_list_cache, mlist); 9040b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 9060b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9070b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, 9080b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct completion *completion, int is_tmf, 9090b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf) 9100b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 9110b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct domain_device *dev = task->dev; 9120b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_info *mvi = NULL; 9130b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 rc = 0; 9140b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 pass = 0; 9150b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu unsigned long flags = 0; 9160b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9170b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info; 9180b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9190b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if ((dev->dev_type == SATA_DEV) && (dev->sata_dev.ap != NULL)) 9200b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock_irq(dev->sata_dev.ap->lock); 9210b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9220b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irqsave(&mvi->lock, flags); 9230b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass); 9240b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 9250b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); 9260b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9270b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass)) 9280b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) & 9290b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (MVS_CHIP_SLOT_SZ - 1)); 9300b84b7094e87769120def1e703b8b4d037281038Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 9310b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9320b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if ((dev->dev_type == SATA_DEV) && (dev->sata_dev.ap != NULL)) 9330b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irq(dev->sata_dev.ap->lock); 9340b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9350b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return rc; 9360b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu} 9370b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9380b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yustatic int mvs_collector_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags, 9390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct completion *completion, int is_tmf, 9400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_tmf_task *tmf) 9410b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu{ 9420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct domain_device *dev = task->dev; 9430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_prv_info *mpi = dev->port->ha->lldd_ha; 9440b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_info *mvi = NULL; 9450b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct sas_task *t = task; 9460b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_task_list *mvs_list = NULL, *a; 9470b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu LIST_HEAD(q); 9480b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu int pass[2] = {0}; 9490b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 rc = 0; 9500b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu u32 n = num; 9510b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu unsigned long flags = 0; 9520b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9530b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvs_list = mvs_task_alloc_list(&n, gfp_flags); 9540b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (n) { 9550b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu printk(KERN_ERR "%s: mvs alloc list failed.\n", __func__); 9560b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = -ENOMEM; 9570b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu goto free_list; 9580b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9590b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9600b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu __list_add(&q, mvs_list->list.prev, &mvs_list->list); 9610b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9620b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_entry(a, &q, list) { 9630b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu a->task = t; 9640b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu t = list_entry(t->list.next, struct sas_task, list); 9650b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9660b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9670b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_for_each_entry(a, &q , list) { 9680b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9690b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu t = a->task; 9700b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvi = ((struct mvs_device *)t->dev->lldd_dev)->mvi_info; 9710b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9720b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_lock_irqsave(&mvi->lock, flags); 9730b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu rc = mvs_task_prep(t, mvi, is_tmf, tmf, &pass[mvi->id]); 9740b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (rc) 9750b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc); 9760b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu spin_unlock_irqrestore(&mvi->lock, flags); 9770b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 9780b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9790b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass[0])) 9800b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mpi->mvi[0], 9810b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (mpi->mvi[0]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); 9820b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9830b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (likely(pass[1])) 9840b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu MVS_CHIP_DISP->start_delivery(mpi->mvi[1], 9850b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu (mpi->mvi[1]->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1)); 9860b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9870b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu list_del_init(&q); 9880b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 9890b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yufree_list: 9900b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (mvs_list) 9910b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu mvs_task_free_list(mvs_list); 9920b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 993dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 994dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 995dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 99620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_queue_command(struct sas_task *task, const int num, 99720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan gfp_t gfp_flags) 99820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 9990b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct mvs_device *mvi_dev = task->dev->lldd_dev; 10000b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu struct sas_ha_struct *sas = mvi_dev->mvi_info->sas; 10010b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 10020b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (sas->lldd_max_execute_num < 2) 10030b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return mvs_task_exec(task, num, gfp_flags, NULL, 0, NULL); 10040b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu else 10050b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu return mvs_collector_task_exec(task, num, gfp_flags, NULL, 0, NULL); 100620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 100720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 1008dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc) 1009dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1010dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 slot_idx = rx_desc & RXQ_SLOT_MASK; 1011dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_tag_clear(mvi, slot_idx); 1012dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1013dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1014dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task, 1015dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_slot_info *slot, u32 slot_idx) 1016dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 101720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!slot->task) 101820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 1019dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!sas_protocol_ata(task->task_proto)) 1020dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (slot->n_elem) 102120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, task->scatter, 1022dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->n_elem, task->data_dir); 1023dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1024dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik switch (task->task_proto) { 1025dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SMP: 102620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1, 1027dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_FROMDEVICE); 102820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1, 1029dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik PCI_DMA_TODEVICE); 1030dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1031dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1032dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SATA: 1033dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_STP: 1034dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SSP: 1035dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 1036dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik /* do nothing */ 1037dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1038dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 10390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu 10400b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu if (slot->buf) { 10410b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma); 10420b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu slot->buf = NULL; 10430b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu } 104420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_del_init(&slot->entry); 1045dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik task->lldd_task = NULL; 1046dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->task = NULL; 1047dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik slot->port = NULL; 104820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot->slot_tag = 0xFFFFFFFF; 104920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_free(mvi, slot_idx); 1050dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1051dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1052dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void mvs_update_wideport(struct mvs_info *mvi, int i) 1053dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1054dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 1055dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_port *port = phy->port; 1056dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik int j, no; 1057dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 105820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for_each_phy(port->wide_port_phymap, j, no) { 105920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (j & 1) { 106020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, 106120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYR_WIDE_PORT); 106220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, no, 1063dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap); 1064dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else { 106520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, no, 106620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYR_WIDE_PORT); 106720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_data(mvi, no, 106820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 0); 1069dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 107020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1071dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1072dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1073dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_is_phy_ready(struct mvs_info *mvi, int i) 1074dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1075dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 tmp; 1076dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 107720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port = phy->port; 1078dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 107920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i); 1080dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) { 1081dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!port) 1082dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_attached = 1; 1083dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return tmp; 1084dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1085dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1086dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (port) { 1087dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 1088dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap &= ~(1U << i); 1089dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!port->wide_port_phymap) 1090dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 0; 1091dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_update_wideport(mvi, i); 1092dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } else if (phy->phy_type & PORT_TYPE_SATA) 1093dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 0; 1094dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->port = NULL; 1095dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_attached = 0; 1096dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA); 1097dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1098dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return 0; 1099dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1100dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1101dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf) 1102dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1103dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik u32 *s = (u32 *) buf; 1104dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1105dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (!s) 1106dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return NULL; 1107dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 110820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3); 110920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[3] = MVS_CHIP_DISP->read_port_cfg_data(mvi, i); 1110dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 111120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2); 111220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[2] = MVS_CHIP_DISP->read_port_cfg_data(mvi, i); 1113dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 111420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1); 111520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[1] = MVS_CHIP_DISP->read_port_cfg_data(mvi, i); 1116dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 111720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0); 111820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[0] = MVS_CHIP_DISP->read_port_cfg_data(mvi, i); 111920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 112020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* Workaround: take some ATAPI devices for ATA */ 112120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01)) 112220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10); 1123dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1124f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan return s; 1125dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1126dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1127dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzikstatic u32 mvs_is_sig_fis_received(u32 irq_status) 1128dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1129dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return irq_status & PHYEV_SIG_FIS; 1130dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1131dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 11328882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yustatic void mvs_sig_remove_timer(struct mvs_phy *phy) 11338882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu{ 11348882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu if (phy->timer.function) 11358882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu del_timer(&phy->timer); 11368882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu phy->timer.function = NULL; 11378882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu} 11388882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu 113920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st) 1140dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1141dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = &mvi->phy[i]; 114220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_identify_frame *id; 1143b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 114420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan id = (struct sas_identify_frame *)phy->frame_rcvd; 1145b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1146dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (get_st) { 114720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i); 1148dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->phy_status = mvs_is_phy_ready(mvi, i); 1149dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 11508f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 1151dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_status) { 115220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int oob_done = 0; 115320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy; 1154b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 115520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan oob_done = MVS_CHIP_DISP->oob_done(mvi, i); 115620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 115720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->fix_phy_info(mvi, i, id); 115820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_type & PORT_TYPE_SATA) { 115920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->identify.target_port_protocols = SAS_PROTOCOL_STP; 116020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvs_is_sig_fis_received(phy->irq_status)) { 11618882f081329a82737b7471b97e59ce8c407f6655Xiangliang Yu mvs_sig_remove_timer(phy); 116220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 1; 116320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_sas_addr = 116420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy; 116520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (oob_done) 116620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy->oob_mode = SATA_OOB_MODE; 116720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->frame_rcvd_size = 116820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct dev_to_host_fis); 1169f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan mvs_get_d2h_reg(mvi, i, id); 117020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 117120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 117220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev_printk(KERN_DEBUG, mvi->dev, 117320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "Phy%d : No sig fis\n", i); 117420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i); 117520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, i, 117620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp | PHYEV_SIG_FIS); 117720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 0; 117820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_type &= ~PORT_TYPE_SATA; 117920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out_done; 118020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 11819dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } else if (phy->phy_type & PORT_TYPE_SAS 118220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan || phy->att_dev_info & PORT_SSP_INIT_MASK) { 118320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 1; 1184dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.device_type = 118520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_info & PORT_DEV_TYPE_MASK; 1186b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1187dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->identify.device_type == SAS_END_DEV) 1188dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.target_port_protocols = 1189dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik SAS_PROTOCOL_SSP; 1190dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik else if (phy->identify.device_type != NO_DEVICE) 1191dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->identify.target_port_protocols = 1192dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik SAS_PROTOCOL_SMP; 119320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (oob_done) 1194dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sas_phy->oob_mode = SAS_OOB_MODE; 1195dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->frame_rcvd_size = 1196dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik sizeof(struct sas_identify_frame); 1197dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 119820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(sas_phy->attached_sas_addr, 119920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan &phy->att_dev_sas_addr, SAS_ADDR_SIZE); 1200b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 120120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (MVS_CHIP_DISP->phy_work_around) 120220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_work_around(mvi, i); 1203dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 120420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("port %d attach dev info is %x\n", 120520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy, phy->att_dev_info); 120620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("port %d attach sas addr is %llx\n", 120720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr); 12084e52fc0a0a2ec2158691efba3f149f6416481255Ke Weiout_done: 1209dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (get_st) 121020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status); 1211b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1212b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 121320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock) 12148f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 1215dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct sas_ha_struct *sas_ha = sas_phy->ha; 121620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; int i = 0, hi; 1217dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik struct mvs_phy *phy = sas_phy->lldd_phy; 121820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_port *sas_port = sas_phy->port; 121920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port; 122020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 122120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!sas_port) 122220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 12238f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 122420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (sas_ha->sas_phy[i]) { 122520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sas_ha->sas_phy[i] == sas_phy) 122620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 122720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan i++; 122820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 122920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy; 123020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi]; 123120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sas_port->id >= mvi->chip->n_phy) 123220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan port = &mvi->port[sas_port->id - mvi->chip->n_phy]; 123320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 123420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan port = &mvi->port[sas_port->id]; 123520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 123620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 1237dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->port_attached = 1; 1238dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik phy->port = port; 12390b15fb1fdfd403726542cb6111bc916b7a9f7fadXiangliang Yu sas_port->lldd_port = port; 1240dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik if (phy->phy_type & PORT_TYPE_SAS) { 1241dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik port->wide_port_phymap = sas_port->phy_mask; 124220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("set wide port phy map %x\n", sas_port->phy_mask); 1243dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik mvs_update_wideport(mvi, sas_phy->id); 12448f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 124520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 124620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 1247dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1248dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 124920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock) 1250dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 12519dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev; 12529dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_phy *phy = sas_phy->lldd_phy; 12539dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_info *mvi = phy->mvi; 12549dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct asd_sas_port *port = sas_phy->port; 12559dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int phy_no = 0; 12569dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 12579dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas while (phy != &mvi->phy[phy_no]) { 12589dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas phy_no++; 12599dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy_no >= MVS_MAX_PHYS) 12609dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas return; 12619dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 12629dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas list_for_each_entry(dev, &port->dev_list, dev_list_node) 12639dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_do_release_task(phy->mvi, phy_no, NULL); 12649dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1265dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1266dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 1267dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 126820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_port_formed(struct asd_sas_phy *sas_phy) 126920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 127020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_formed(sas_phy, 1); 1271dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1272dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 127320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_port_deformed(struct asd_sas_phy *sas_phy) 1274dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 127520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_deformed(sas_phy, 1); 127620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 12778f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 127820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstruct mvs_device *mvs_alloc_dev(struct mvs_info *mvi) 127920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 128020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 dev; 128120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (dev = 0; dev < MVS_MAX_DEVICES; dev++) { 128220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->devices[dev].dev_type == NO_DEVICE) { 128320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->devices[dev].device_id = dev; 128420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return &mvi->devices[dev]; 128520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 12868f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei } 12878121ed420285885654af133a6ca1919590f98917Ke Wei 128820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev == MVS_MAX_DEVICES) 128920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("max support %d devices, ignore ..\n", 129020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_MAX_DEVICES); 129120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 129220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return NULL; 12938f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 12948f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 129520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_free_dev(struct mvs_device *mvi_dev) 1296b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 129720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 id = mvi_dev->device_id; 129820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memset(mvi_dev, 0, sizeof(*mvi_dev)); 129920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id = id; 130020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_type = NO_DEVICE; 130120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_status = MVS_DEV_NORMAL; 130220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->taskfileset = MVS_ID_NOT_MAPPED; 130320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1304b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 130520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_dev_found_notify(struct domain_device *dev, int lock) 130620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 130720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 130820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int res = 0; 130920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = NULL; 131020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *parent_dev = dev->parent; 131120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *mvi_device; 1312b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 131320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi = mvs_find_dev_mvi(dev); 1314b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 131520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 131620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 131720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 131820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device = mvs_alloc_dev(mvi); 131920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!mvi_device) { 132020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -1; 132120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto found_out; 1322b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1323f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan dev->lldd_dev = mvi_device; 13249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_device->dev_status = MVS_DEV_NORMAL; 132520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device->dev_type = dev->dev_type; 13269870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan mvi_device->mvi_info = mvi; 132720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) { 132820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int phy_id; 132920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 phy_num = parent_dev->ex_dev.num_phys; 133020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ex_phy *phy; 133120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (phy_id = 0; phy_id < phy_num; phy_id++) { 133220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy = &parent_dev->ex_dev.ex_phy[phy_id]; 133320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (SAS_ADDR(phy->attached_sas_addr) == 133420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr)) { 133520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_device->attached_phy = phy_id; 133620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 133720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 133820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1339b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 134020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy_id == phy_num) { 134120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("Error: no attached dev:%016llx" 134220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "at ex:%016llx.\n", 134320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr), 134420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(parent_dev->sas_addr)); 134520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -1; 134620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1347dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1348b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 134920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanfound_out: 135020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (lock) 135120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 135220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return res; 135320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1354b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 135520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_dev_found(struct domain_device *dev) 135620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 135720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return mvs_dev_found_notify(dev, 1); 135820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1359b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13609dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_dev_gone_notify(struct domain_device *dev) 136120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 136220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags = 0; 1363f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = dev->lldd_dev; 13649870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 1365b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13669dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_lock_irqsave(&mvi->lock, flags); 1367b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 136820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi_dev) { 136920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("found dev[%d:%x] is gone.\n", 137020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id, mvi_dev->dev_type); 13719dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_release_task(mvi, dev); 137220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_reg_set(mvi, mvi_dev); 137320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_dev(mvi_dev); 137420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 137520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("found dev has gone.\n"); 1376b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 137720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan dev->lldd_dev = NULL; 1378b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 13799dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_unlock_irqrestore(&mvi->lock, flags); 1380b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1381b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1382b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 138320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_dev_gone(struct domain_device *dev) 138420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 13859dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_dev_gone_notify(dev); 138620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1387b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 138820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic struct sas_task *mvs_alloc_task(void) 138920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 139020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = kzalloc(sizeof(struct sas_task), GFP_KERNEL); 139120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 139220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task) { 139320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan INIT_LIST_HEAD(&task->list); 139420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_init(&task->task_state_lock); 139520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags = SAS_TASK_STATE_PENDING; 139620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan init_timer(&task->timer); 139720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan init_completion(&task->completion); 1398b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 139920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return task; 1400dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1401b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 140220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_free_task(struct sas_task *task) 1403dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 140420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task) { 140520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan BUG_ON(!list_empty(&task->list)); 140620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan kfree(task); 1407b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 140820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1409b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 141020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_task_done(struct sas_task *task) 141120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 141220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!del_timer(&task->timer)) 141320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 141420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan complete(&task->completion); 1415b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 1416b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 141720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_tmf_timedout(unsigned long data) 1418b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 141920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = (struct sas_task *)data; 14208f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 142120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags |= SAS_TASK_STATE_ABORTED; 142220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan complete(&task->completion); 142320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 14248f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 142520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* XXX */ 142620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan#define MVS_TASK_TIMEOUT 20 142720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_exec_internal_tmf_task(struct domain_device *dev, 142820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *parameter, u32 para_len, struct mvs_tmf_task *tmf) 142920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 143020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int res, retry; 143120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = NULL; 14328f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 143320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (retry = 0; retry < 3; retry++) { 143420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task = mvs_alloc_task(); 143520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!task) 143620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -ENOMEM; 14378f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 143820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->dev = dev; 143920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_proto = dev->tproto; 14408f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 144120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(&task->ssp_task, parameter, para_len); 144220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_done = mvs_task_done; 14438f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 144420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.data = (unsigned long) task; 144520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.function = mvs_tmf_timedout; 144620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ; 144720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan add_timer(&task->timer); 14488f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 14490b84b7094e87769120def1e703b8b4d037281038Andy Yan res = mvs_task_exec(task, 1, GFP_KERNEL, NULL, 1, tmf); 14508f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 145120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (res) { 145220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan del_timer(&task->timer); 145320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("executing internel task failed:%d\n", res); 145420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto ex_err; 145520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 14568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 145720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan wait_for_completion(&task->completion); 145820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -TMF_RESP_FUNC_FAILED; 145920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* Even TMF timed out, return direct. */ 146020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { 146120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { 146220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("TMF task[%x] timeout.\n", tmf->tmf); 146320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto ex_err; 146420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 146520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 14668f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 146720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 1468df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley task->task_status.stat == SAM_STAT_GOOD) { 146920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = TMF_RESP_FUNC_COMPLETE; 147020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 147120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1472b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 147320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 147420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat == SAS_DATA_UNDERRUN) { 147520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* no error, but return the number of bytes of 147620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * underrun */ 147720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = task->task_status.residual; 147820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 147920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1480b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 148120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_status.resp == SAS_TASK_COMPLETE && 148220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat == SAS_DATA_OVERRUN) { 148320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("blocked task error.\n"); 148420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan res = -EMSGSIZE; 148520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 148620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 148720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk(" task to dev %016llx response: 0x%x " 148820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan "status 0x%x\n", 148920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SAS_ADDR(dev->sas_addr), 149020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.resp, 149120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_status.stat); 149220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_task(task); 149320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task = NULL; 1494b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1495dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1496dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 149720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanex_err: 149820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan BUG_ON(retry == 3 && task != NULL); 149920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task != NULL) 150020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_task(task); 150120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return res; 1502dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 1503b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 150420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_debug_issue_ssp_tmf(struct domain_device *dev, 150520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 *lun, struct mvs_tmf_task *tmf) 1506dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 150720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ssp_task ssp_task; 150820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan DECLARE_COMPLETION_ONSTACK(completion); 150920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(dev->tproto & SAS_PROTOCOL_SSP)) 151020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return TMF_RESP_FUNC_ESUPP; 1511b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 151220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan strncpy((u8 *)&ssp_task.LUN, lun, 8); 1513b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 151420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return mvs_exec_internal_tmf_task(dev, &ssp_task, 151520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(ssp_task), tmf); 151620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 15178f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 15188f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 151920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* Standard mandates link reset for ATA (type 0) 152020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan and hard reset for SSP (type 1) , only for RECOVERY */ 152120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_debug_I_T_nexus_reset(struct domain_device *dev) 152220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 152320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc; 152420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_phy *phy = sas_find_local_phy(dev); 152520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int reset_type = (dev->dev_type == SATA_DEV || 152620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1; 152720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = sas_phy_reset(phy, reset_type); 152820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan msleep(2000); 152920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 153020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 15318f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 153220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* mandatory SAM-3 */ 153320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_lu_reset(struct domain_device *dev, u8 *lun) 153420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 153520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 153620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int i, phyno[WIDE_PORT_MAX_PHY], num , rc = TMF_RESP_FUNC_FAILED; 153720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 1538f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device * mvi_dev = dev->lldd_dev; 15399870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 154020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 154120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_LU_RESET; 154220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->dev_status = MVS_DEV_EH; 154320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 154420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == TMF_RESP_FUNC_COMPLETE) { 154520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan num = mvs_find_dev_phyno(dev, phyno); 154620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 154720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (i = 0; i < num; i++) 15489dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_release_task(mvi, dev); 154920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 1550dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 155120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* If failed, fall-through I_T_Nexus reset */ 155220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s for device[%x]:rc= %d\n", __func__, 155320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi_dev->device_id, rc); 155420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 155520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 15568f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 155720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_I_T_nexus_reset(struct domain_device *dev) 155820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 155920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 15609dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int rc = TMF_RESP_FUNC_FAILED; 15619dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_device * mvi_dev = (struct mvs_device *)dev->lldd_dev; 15629870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 156320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 156420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi_dev->dev_status != MVS_DEV_EH) 156520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return TMF_RESP_FUNC_COMPLETE; 156620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_I_T_nexus_reset(dev); 156720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s for device[%x]:rc= %d\n", 156820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan __func__, mvi_dev->device_id, rc); 156920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 157020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* housekeeper */ 157120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 15729dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_release_task(mvi, dev); 157320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 157420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 157520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 157620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 157720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* optional SAM-3 */ 157820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_query_task(struct sas_task *task) 157920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 158020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag; 158120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_lun lun; 158220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 158320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 158420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 158520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { 158620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; 158720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 15889870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 15899870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_info *mvi = mvi_dev->mvi_info; 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 rc = TMF_RESP_FUNC_FAILED; 1595dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 159620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 15978f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 159820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_QUERY_TASK; 159920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); 16008f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 160120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); 160220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (rc) { 160320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The task is still in Lun, release it then */ 160420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_SUCC: 160520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The task is not in Lun or failed, reset the phy */ 160620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_FAILED: 160720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case TMF_RESP_FUNC_COMPLETE: 160820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 16099dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas default: 16109dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas rc = TMF_RESP_FUNC_COMPLETE; 16119dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas break; 161220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1613dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 161420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s:rc= %d\n", __func__, rc); 161520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 16168f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 16178f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 161820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan/* mandatory SAM-3, still need free task/slot info */ 161920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_abort_task(struct sas_task *task) 16208f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 162120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_lun lun; 162220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 162320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct domain_device *dev = task->dev; 16249870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev; 162524ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby struct mvs_info *mvi; 162620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 162720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 162820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tag; 16299870d9a2428550e7ac3164a26306ad07a99051aeAndy Yan 16309dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!mvi_dev) { 16319dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_printk("%s:%d TMF_RESP_FUNC_FAILED\n", __func__, __LINE__); 16329dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas rc = TMF_RESP_FUNC_FAILED; 16339dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 16349dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 163524ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby mvi = mvi_dev->mvi_info; 163624ae163ed33d2b8a70d2f0b1947b401d0a8e8719Jiri Slaby 163720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&task->task_state_lock, flags); 163820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_state_flags & SAS_TASK_STATE_DONE) { 163920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&task->task_state_lock, flags); 164020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = TMF_RESP_FUNC_COMPLETE; 164120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 1642dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 164320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&task->task_state_lock, flags); 16449dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->dev_status = MVS_DEV_EH; 164520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) { 164620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task; 164720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 164820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int_to_scsilun(cmnd->device->lun, &lun); 164920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_find_tag(mvi, task, &tag); 165020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == 0) { 165120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("No such tag in %s\n", __func__); 165220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = TMF_RESP_FUNC_FAILED; 165320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 165420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 16558f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 165620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_ABORT_TASK; 165720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag); 16588f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 165920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); 16608f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 166120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* if successful, clear the task and callback forwards.*/ 166220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc == TMF_RESP_FUNC_COMPLETE) { 166320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_no; 166420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot; 16658f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 166620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->lldd_task) { 1667f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan slot = task->lldd_task; 166820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_no = (u32) (slot - mvi->slot_info); 16699dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_lock_irqsave(&mvi->lock, flags); 167020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, slot_no, 1); 16719dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas spin_unlock_irqrestore(&mvi->lock, flags); 167220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 167320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 16749dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 167520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (task->task_proto & SAS_PROTOCOL_SATA || 167620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_proto & SAS_PROTOCOL_STP) { 167720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* to do free register_set */ 16789dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (SATA_DEV == dev->dev_type) { 16799dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct mvs_slot_info *slot = task->lldd_task; 16809dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct task_status_struct *tstat; 16819dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 slot_idx = (u32)(slot - mvi->slot_info); 16829dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat = &task->task_status; 16839dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_dprintk(KERN_DEBUG "mv_abort_task() mvi=%p task=%p " 16849dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas "slot=%p slot_idx=x%x\n", 16859dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi, task, slot, slot_idx); 16869dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat->stat = SAS_ABORTED_TASK; 16879dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (mvi_dev && mvi_dev->running_req) 16889dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->running_req--; 16899dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (sas_protocol_ata(task->task_proto)) 16909dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_free_reg_set(mvi, mvi_dev); 16919dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_slot_task_free(mvi, task, slot, slot_idx); 16929dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas return -1; 16939dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 169420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 169520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* SMP */ 16968f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 169720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 169820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanout: 169920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rc != TMF_RESP_FUNC_COMPLETE) 170020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("%s:rc= %d\n", __func__, rc); 1701dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik return rc; 17028f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 17038f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 170420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_abort_task_set(struct domain_device *dev, u8 *lun) 17058f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 170620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 170720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 17088f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 170920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_ABORT_TASK_SET; 171020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 1711dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 171220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 17138f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 17148f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 171520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_clear_aca(struct domain_device *dev, u8 *lun) 17168f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 171720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 171820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 17198f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 172020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_CLEAR_ACA; 172120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 17228f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 172320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 172420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 17258f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 172620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_clear_task_set(struct domain_device *dev, u8 *lun) 172720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 172820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int rc = TMF_RESP_FUNC_FAILED; 172920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_tmf_task tmf_task; 17308f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 173120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmf_task.tmf = TMF_CLEAR_TASK_SET; 173220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task); 17338f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 173420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return rc; 1735dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik} 17368f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 173720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task, 173820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx, int err) 1739dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik{ 1740f9da3be5afc08c40e7f7a395c8935d500a6898b1Andy Yan struct mvs_device *mvi_dev = task->dev->lldd_dev; 174120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct task_status_struct *tstat = &task->task_status; 174220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf; 1743df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley int stat = SAM_STAT_GOOD; 1744e9ff91b6927079307b5d481a93beac4134e923ebKe Wei 17458f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 174620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan resp->frame_len = sizeof(struct dev_to_host_fis); 174720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(&resp->ending_fis[0], 174820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset), 174920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct dev_to_host_fis)); 175020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->buf_valid_size = sizeof(*resp); 17519dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(err)) { 17529dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(err & CMD_ISS_STPD)) 17539dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas stat = SAS_OPEN_REJECT; 17549dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas else 17559dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas stat = SAS_PROTO_RESPONSE; 17569dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 17579dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 175820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return stat; 17598f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei} 17608f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 176120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task, 176220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx) 17638f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei{ 176420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; 176520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int stat; 176620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 err_dw0 = le32_to_cpu(*(u32 *) (slot->response)); 176720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tfs = 0; 176820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan enum mvs_port_type type = PORT_TYPE_SAS; 17698f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 177020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (err_dw0 & CMD_ISS_STPD) 177120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->issue_stop(mvi, type, tfs); 177220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 177320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->command_active(mvi, slot_idx); 1774b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 1775df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley stat = SAM_STAT_CHECK_CONDITION; 1776dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik switch (task->task_proto) { 1777dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SSP: 177820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan stat = SAS_ABORTED_TASK; 177920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 178020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SMP: 1781df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley stat = SAM_STAT_CHECK_CONDITION; 1782dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 178320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 1784dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_SATA: 1785dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik case SAS_PROTOCOL_STP: 178620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: 178720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan { 178820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (err_dw0 == 0x80400002) 178920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("find reserved error, why?\n"); 179020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 179120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->ata_task.use_ncq = 0; 17929dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_sata_done(mvi, task, slot_idx, err_dw0); 1793dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 179420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1795dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik default: 1796dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik break; 1797dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik } 1798dd4969a892ea522ecf9d7d826ba1531ce044d46fJeff Garzik 179920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return stat; 1800e9ff91b6927079307b5d481a93beac4134e923ebKe Wei} 1801e9ff91b6927079307b5d481a93beac4134e923ebKe Wei 180220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) 1803b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 180420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 slot_idx = rx_desc & RXQ_SLOT_MASK; 180520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot = &mvi->slot_info[slot_idx]; 180620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task = slot->task; 180720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_device *mvi_dev = NULL; 180820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct task_status_struct *tstat; 18099dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev; 18109dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 aborted; 181120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 181220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan void *to; 181320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan enum exec_status sts; 181420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 18159dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(!task || !task->lldd_task || !task->dev)) 181620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -1; 181720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 181820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat = &task->task_status; 18199dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas dev = task->dev; 18209dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev = dev->lldd_dev; 1821b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 182220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock(&task->task_state_lock); 182320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags &= 182420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR); 182520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_state_flags |= SAS_TASK_STATE_DONE; 182620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* race condition*/ 182720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED; 182820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock(&task->task_state_lock); 182920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 183020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memset(tstat, 0, sizeof(*tstat)); 183120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->resp = SAS_TASK_COMPLETE; 183220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 183320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely(aborted)) { 183420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = SAS_ABORTED_TASK; 18359dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (mvi_dev && mvi_dev->running_req) 18369dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->running_req--; 183720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (sas_protocol_ata(task->task_proto)) 183820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_free_reg_set(mvi, mvi_dev); 183920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 184020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_task_free(mvi, task, slot, slot_idx); 184120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return -1; 1842b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1843b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 18449dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (unlikely(!mvi_dev || flags)) { 18459dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!mvi_dev) 18469dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_dprintk("port has not device.\n"); 184720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = SAS_PHY_DOWN; 184820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 184920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1850b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 185120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* error info record present */ 185220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) { 185320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = mvs_slot_err(mvi, task, slot_idx); 18549dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat->resp = SAS_TASK_COMPLETE; 185520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan goto out; 1856b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 1857b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 185820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan switch (task->task_proto) { 185920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SSP: 186020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* hw says status == 0, datapres == 0 */ 186120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rx_desc & RXQ_GOOD) { 1862df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_GOOD; 186320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->resp = SAS_TASK_COMPLETE; 186420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 186520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* response frame present */ 186620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else if (rx_desc & RXQ_RSP) { 186720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct ssp_response_iu *iu = slot->response + 186820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sizeof(struct mvs_err_info); 186920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ssp_task_response(mvi->dev, task, iu); 187020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else 1871df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_CHECK_CONDITION; 187220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 1873b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 187420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SMP: { 187520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct scatterlist *sg_resp = &task->smp_task.smp_resp; 1876df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_GOOD; 187720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan to = kmap_atomic(sg_page(sg_resp), KM_IRQ0); 187820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan memcpy(to + sg_resp->offset, 187920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot->response + sizeof(struct mvs_err_info), 188020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sg_dma_len(sg_resp)); 188120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan kunmap_atomic(to, KM_IRQ0); 188220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 188320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 18848f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 188520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA: 188620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_STP: 188720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: { 188820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0); 188920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 189020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 1891b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 189220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan default: 1893df64d3caab8db6ae17dacd229a03d7689a10c432James Bottomley tstat->stat = SAM_STAT_CHECK_CONDITION; 189420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan break; 189520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 18969dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (!slot->port->port_attached) { 18979dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mv_dprintk("port %d has removed.\n", slot->port->sas_port.id); 18989dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas tstat->stat = SAS_PHY_DOWN; 18999dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 19009dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1901b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 190220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanout: 19039dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (mvi_dev && mvi_dev->running_req) { 19049dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvi_dev->running_req--; 19059dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req) 19060f980a871678b7ec143fcb45b31bf9234e4585c8Andy Yan mvs_free_reg_set(mvi, mvi_dev); 19070f980a871678b7ec143fcb45b31bf9234e4585c8Andy Yan } 190820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_task_free(mvi, task, slot, slot_idx); 190920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sts = tstat->stat; 19108f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 191120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock(&mvi->lock); 191220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (task->task_done) 191320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task->task_done(task); 191420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 191520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("why has not task_done.\n"); 191620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock(&mvi->lock); 1917b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 191820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return sts; 191920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1920b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 19219dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_do_release_task(struct mvs_info *mvi, 192220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int phy_no, struct domain_device *dev) 192320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 19249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas u32 slot_idx; 192520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy; 192620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_port *port; 192720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_slot_info *slot, *slot2; 1928b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 192920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy = &mvi->phy[phy_no]; 193020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan port = phy->port; 193120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!port) 193220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 19339dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas /* clean cmpl queue in case request is already finished */ 19349dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_int_rx(mvi, false); 19359dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 19369dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 1937b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 193820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_for_each_entry_safe(slot, slot2, &port->list, entry) { 193920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_task *task; 194020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_idx = (u32) (slot - mvi->slot_info); 194120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan task = slot->task; 1942b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 194320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (dev && task->dev != dev) 194420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan continue; 19458f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 194620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_printk("Release slot [%x] tag[%x], task [%p]:\n", 194720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan slot_idx, slot->slot_tag, task); 19489dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas MVS_CHIP_DISP->command_active(mvi, slot_idx); 1949b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 195020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, slot_idx, 1); 1951b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 195220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 1953b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 19549dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivasvoid mvs_release_task(struct mvs_info *mvi, 19559dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas struct domain_device *dev) 19569dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas{ 19579dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas int i, phyno[WIDE_PORT_MAX_PHY], num; 19589dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas /* housekeeper */ 19599dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas num = mvs_find_dev_phyno(dev, phyno); 19609dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas for (i = 0; i < num; i++) 19619dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_do_release_task(mvi, phyno[i], dev); 19629dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas} 19639dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 196420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_phy_disconnected(struct mvs_phy *phy) 196520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 196620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_attached = 0; 196720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_info = 0; 196820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->att_dev_sas_addr = 0; 196920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 197020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 197120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_work_queue(struct work_struct *work) 197220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 197320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct delayed_work *dw = container_of(work, struct delayed_work, work); 197420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q); 197520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = mwq->mvi; 197620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan unsigned long flags; 1977b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 197820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_lock_irqsave(&mvi->lock, flags); 197920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mwq->handler & PHY_PLUG_EVENT) { 198020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 phy_no = (unsigned long) mwq->data; 198120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sas_ha = mvi->sas; 198220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy = &mvi->phy[phy_no]; 198320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &phy->sas_phy; 198420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 198520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_event & PHY_PLUG_OUT) { 198620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 198720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_identify_frame *id; 198820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan id = (struct sas_identify_frame *)phy->frame_rcvd; 198920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no); 199020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event &= ~PHY_PLUG_OUT; 199120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(tmp & PHY_READY_MASK)) { 199220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_phy_disconnected(sas_phy); 199320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_phy_disconnected(phy); 199420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha->notify_phy_event(sas_phy, 199520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHYE_LOSS_OF_SIGNAL); 199620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy%d Removed Device\n", phy_no); 199720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 199820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->detect_porttype(mvi, phy_no); 199920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_update_phyinfo(mvi, phy_no, 1); 200020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, phy_no); 200120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_formed(sas_phy, 0); 200220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy%d Attached Device\n", phy_no); 200320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 200420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 200520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 200620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_del(&mwq->entry); 200720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan spin_unlock_irqrestore(&mvi->lock, flags); 200820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan kfree(mwq); 200920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 20108f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 201120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic int mvs_handle_event(struct mvs_info *mvi, void *data, int handler) 201220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 201320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_wq *mwq; 201420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int ret = 0; 201520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 201620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC); 201720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mwq) { 201820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->mvi = mvi; 201920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->data = data; 202020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mwq->handler = handler; 202120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq); 202220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan list_add_tail(&mwq->entry, &mvi->wq_list); 202320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan schedule_delayed_work(&mwq->work_q, HZ * 2); 202420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else 202520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ret = -ENOMEM; 202620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 202720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return ret; 202820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 2029b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 203020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanstatic void mvs_sig_time_out(unsigned long tphy) 203120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 203220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy = (struct mvs_phy *)tphy; 203320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_info *mvi = phy->mvi; 203420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u8 phy_no; 203520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 203620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) { 203720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (&mvi->phy[phy_no] == phy) { 203820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("Get signature time out, reset phy %d\n", 203920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no+mvi->id*mvi->chip->n_phy); 204020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, phy_no, 1); 204120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2042b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik } 204320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan} 2044b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 204520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanvoid mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events) 204620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan{ 204720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 tmp; 204820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct sas_ha_struct *sas_ha = mvi->sas; 204920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct mvs_phy *phy = &mvi->phy[phy_no]; 205020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan struct asd_sas_phy *sas_phy = &phy->sas_phy; 20518f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 205220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no); 205320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("port %d ctrl sts=0x%X.\n", phy_no+mvi->id*mvi->chip->n_phy, 205420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no)); 205520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("Port %d irq sts = 0x%X\n", phy_no+mvi->id*mvi->chip->n_phy, 205620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->irq_status); 20578f261aaf9be5c1246013cf6a65b98586d24832a5Ke Wei 205820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* 205920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * events is port event now , 206020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * we need check the interrupt status which belongs to per port. 206120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 2062b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 20639dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy->irq_status & PHYEV_DCDR_ERR) { 206420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("port %d STP decoding error.\n", 20659dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas phy_no + mvi->id*mvi->chip->n_phy); 20669dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 206720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 206820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & PHYEV_POOF) { 206920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(phy->phy_event & PHY_PLUG_OUT)) { 207020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int dev_sata = phy->phy_type & PORT_TYPE_SATA; 207120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan int ready; 20729dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mvs_do_release_task(mvi, phy_no, NULL); 207320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event |= PHY_PLUG_OUT; 20749dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1); 207520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_handle_event(mvi, 207620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan (void *)(unsigned long)phy_no, 207720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan PHY_PLUG_EVENT); 207820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan ready = mvs_is_phy_ready(mvi, phy_no); 207920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!ready) 208020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("phy%d Unplug Notice\n", 208120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no + 208220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->id * mvi->chip->n_phy); 208320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (ready || dev_sata) { 208420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (MVS_CHIP_DISP->stp_reset) 208520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->stp_reset(mvi, 208620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no); 208720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan else 208820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->phy_reset(mvi, 208920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no, 0); 209020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return; 209120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 209220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 209320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 2094b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 209520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & PHYEV_COMWAKE) { 209620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no); 209720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no, 209820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp | PHYEV_SIG_FIS); 209920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->timer.function == NULL) { 210020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->timer.data = (unsigned long)phy; 210120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->timer.function = mvs_sig_time_out; 210220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->timer.expires = jiffies + 10*HZ; 210320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan add_timer(&phy->timer); 210420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 210520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 210620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) { 210720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_status = mvs_is_phy_ready(mvi, phy_no); 210820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("notify plug in on phy[%d]\n", phy_no); 210920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_status) { 211020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mdelay(10); 211120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->detect_porttype(mvi, phy_no); 211220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_type & PORT_TYPE_SATA) { 211320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp = MVS_CHIP_DISP->read_port_irq_mask( 211420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi, phy_no); 211520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan tmp &= ~PHYEV_SIG_FIS; 211620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_mask(mvi, 211720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no, tmp); 211820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 211920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_update_phyinfo(mvi, phy_no, 0); 21209dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas if (phy->phy_type & PORT_TYPE_SAS) { 21219dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas MVS_CHIP_DISP->phy_reset(mvi, phy_no, 2); 21229dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas mdelay(10); 21239dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas } 21249dc9fd9484c5168d23fe855e6c56543d96b6695bSrinivas 212520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_bytes_dmaed(mvi, phy_no); 212620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* whether driver is going to handle hot plug */ 212720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (phy->phy_event & PHY_PLUG_OUT) { 212820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_port_notify_formed(sas_phy, 0); 212920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy->phy_event &= ~PHY_PLUG_OUT; 213020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 213120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else { 213220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("plugin interrupt but phy%d is gone\n", 213320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no + mvi->id*mvi->chip->n_phy); 213420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 213520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (phy->irq_status & PHYEV_BROAD_CH) { 213620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mv_dprintk("port %d broadcast change.\n", 213720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan phy_no + mvi->id*mvi->chip->n_phy); 213820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* exception for Samsung disk drive*/ 213920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mdelay(1000); 214020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD); 214120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 214220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status); 2143b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 2144b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 214520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yanint mvs_int_rx(struct mvs_info *mvi, bool self_clear) 2146b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik{ 214720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan u32 rx_prod_idx, rx_desc; 214820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan bool attn = false; 2149b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 215020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* the first dword in the RX ring is special: it contains 215120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * a mirror of the hardware's RX producer index, so that 215220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * we don't have to stall the CPU reading that register. 215320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * The actual RX ring is offset by one dword, due to this. 215420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 215520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_prod_idx = mvi->rx_cons; 215620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->rx_cons = le32_to_cpu(mvi->rx[0]); 215720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */ 215820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 2159b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 216020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* The CMPL_Q may come late, read from register and try again 216120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * note: if coalescing is enabled, 216220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan * it will need to read from register every time for sure 216320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan */ 216420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (unlikely(mvi->rx_cons == rx_prod_idx)) 216520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK; 216620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 216720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (mvi->rx_cons == rx_prod_idx) 216820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 216920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 217020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan while (mvi->rx_cons != rx_prod_idx) { 217120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan /* increment our internal RX consumer pointer */ 217220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1); 217320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]); 217420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 217520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (likely(rx_desc & RXQ_DONE)) 217620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, rx_desc, 0); 217720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (rx_desc & RXQ_ATTN) { 217820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan attn = true; 217920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (rx_desc & RXQ_ERR) { 218020b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (!(rx_desc & RXQ_DONE)) 218120b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_complete(mvi, rx_desc, 0); 218220b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } else if (rx_desc & RXQ_SLOT_RESET) { 218320b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan mvs_slot_free(mvi, rx_desc); 218420b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 218520b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan } 218620b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan 218720b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan if (attn && self_clear) 218820b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan MVS_CHIP_DISP->int_full(mvi); 218920b09c2992fefbe78f8cede7b404fb143a413c52Andy Yan return 0; 2190b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik} 2191b5762948263dd5e9725a380e7a9626f99e40ae9dJeff Garzik 2192