fnic.h revision 14eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7
15df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar/* 25df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * Copyright 2008 Cisco Systems, Inc. All rights reserved. 35df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * Copyright 2007 Nuova Systems, Inc. All rights reserved. 45df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * 55df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * This program is free software; you may redistribute it and/or modify 65df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * it under the terms of the GNU General Public License as published by 75df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * the Free Software Foundation; version 2 of the License. 85df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * 95df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 105df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 115df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 125df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 135df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 145df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 155df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 165df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * SOFTWARE. 175df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar */ 185df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#ifndef _FNIC_H_ 195df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define _FNIC_H_ 205df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 215df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include <linux/interrupt.h> 225df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include <linux/netdevice.h> 235df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include <linux/workqueue.h> 24a737b88df8d0b4476ae53daaa6db137df0541203Andrew Morton#include <linux/bitops.h> 255df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include <scsi/libfc.h> 2678112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt#include <scsi/libfcoe.h> 275df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "fnic_io.h" 285df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "fnic_res.h" 295df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_dev.h" 305df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_wq.h" 315df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_rq.h" 325df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_cq.h" 335df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_wq_copy.h" 345df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_intr.h" 355df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_stats.h" 365df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#include "vnic_scsi.h" 375df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 385df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define DRV_NAME "fnic" 395df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define DRV_DESCRIPTION "Cisco FCoE HBA Driver" 400c79c74272b25bbcfb0149d5a4627ed768795d2dAbhijeet Joglekar#define DRV_VERSION "1.5.0.2" 415df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define PFX DRV_NAME ": " 425df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define DFX DRV_NAME "%d: " 435df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 445df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define DESC_CLEAN_LOW_WATERMARK 8 455df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_MAX_IO_REQ 2048 /* scsi_cmnd tag map entries */ 465df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_IO_LOCKS 64 /* IO locks: power of 2 */ 475df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_DFLT_QUEUE_DEPTH 32 485df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_STATS_RATE_LIMIT 4 /* limit rate at which stats are pulled up */ 49da87bfab8a7e6cfd0e1e5c5874d7fd4f7d11e64eVasu Dev 505df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar/* 515df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * Tag bits used for special requests. 525df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar */ 535df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_TAG_ABORT BIT(30) /* tag bit indicating abort */ 545df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_TAG_DEV_RST BIT(29) /* indicates device reset */ 555df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_TAG_MASK (BIT(24) - 1) /* mask for lookup */ 565df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_NO_TAG -1 575df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 585df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar/* 5903298552cba38f7c805ed338826dc76c405465c7Hiral Patel * Command flags to identify the type of command and for other future 6003298552cba38f7c805ed338826dc76c405465c7Hiral Patel * use. 6103298552cba38f7c805ed338826dc76c405465c7Hiral Patel */ 6214eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_NO_FLAGS 0 6314eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_INITIALIZED BIT(0) 6414eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ISSUED BIT(1) 6514eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_DONE BIT(2) 6614eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_REQ_NULL BIT(3) 6714eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABTS_PENDING BIT(4) 6814eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABORTED BIT(5) 6914eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABTS_ISSUED BIT(6) 7014eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_TERM_ISSUED BIT(7) 7114eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_INTERNAL_TERM_ISSUED BIT(8) 7214eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABT_TERM_DONE BIT(9) 7314eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABT_TERM_REQ_NULL BIT(10) 7414eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_IO_ABT_TERM_TIMED_OUT BIT(11) 7514eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEVICE_RESET BIT(12) /* Device reset request */ 7614eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_ISSUED BIT(13) 7714eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_TIMED_OUT BIT(14) 7814eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_ABTS_ISSUED BIT(15) 7914eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_TERM_ISSUED BIT(16) 8014eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_DONE BIT(17) 8114eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_REQ_NULL BIT(18) 8214eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_ABTS_DONE BIT(19) 8314eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_TERM_DONE BIT(20) 8414eb5d905d16ecd33e5e3113eb44cfa2bb47e7d7Hiral Patel#define FNIC_DEV_RST_ABTS_PENDING BIT(21) 8503298552cba38f7c805ed338826dc76c405465c7Hiral Patel 8603298552cba38f7c805ed338826dc76c405465c7Hiral Patel/* 875df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * Usage of the scsi_cmnd scratchpad. 885df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar * These fields are locked by the hashed io_req_lock. 895df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar */ 905df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define CMD_SP(Cmnd) ((Cmnd)->SCp.ptr) 915df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define CMD_STATE(Cmnd) ((Cmnd)->SCp.phase) 925df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define CMD_ABTS_STATUS(Cmnd) ((Cmnd)->SCp.Message) 935df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define CMD_LR_STATUS(Cmnd) ((Cmnd)->SCp.have_data_in) 945df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define CMD_TAG(Cmnd) ((Cmnd)->SCp.sent_command) 9503298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define CMD_FLAGS(Cmnd) ((Cmnd)->SCp.Status) 965df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 975df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FCPIO_INVALID_CODE 0x100 /* hdr_status value unused by firmware */ 985df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 995df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_LUN_RESET_TIMEOUT 10000 /* mSec */ 1005df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_HOST_RESET_TIMEOUT 10000 /* mSec */ 1015df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_RMDEVICE_TIMEOUT 1000 /* mSec */ 1025df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_HOST_RESET_SETTLE_TIME 30 /* Sec */ 10303298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define FNIC_ABT_TERM_DELAY_TIMEOUT 500 /* mSec */ 1045df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1055df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_MAX_FCP_TARGET 256 1065df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 10703298552cba38f7c805ed338826dc76c405465c7Hiral Patel/** 10803298552cba38f7c805ed338826dc76c405465c7Hiral Patel * state_flags to identify host state along along with fnic's state 10903298552cba38f7c805ed338826dc76c405465c7Hiral Patel **/ 11003298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define __FNIC_FLAGS_FWRESET BIT(0) /* fwreset in progress */ 11103298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define __FNIC_FLAGS_BLOCK_IO BIT(1) /* IOs are blocked */ 11203298552cba38f7c805ed338826dc76c405465c7Hiral Patel 11303298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define FNIC_FLAGS_NONE (0) 11403298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define FNIC_FLAGS_FWRESET (__FNIC_FLAGS_FWRESET | \ 11503298552cba38f7c805ed338826dc76c405465c7Hiral Patel __FNIC_FLAGS_BLOCK_IO) 11603298552cba38f7c805ed338826dc76c405465c7Hiral Patel 11703298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define FNIC_FLAGS_IO_BLOCKED (__FNIC_FLAGS_BLOCK_IO) 11803298552cba38f7c805ed338826dc76c405465c7Hiral Patel 11903298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define fnic_set_state_flags(fnicp, st_flags) \ 12003298552cba38f7c805ed338826dc76c405465c7Hiral Patel __fnic_set_state_flags(fnicp, st_flags, 0) 12103298552cba38f7c805ed338826dc76c405465c7Hiral Patel 12203298552cba38f7c805ed338826dc76c405465c7Hiral Patel#define fnic_clear_state_flags(fnicp, st_flags) \ 12303298552cba38f7c805ed338826dc76c405465c7Hiral Patel __fnic_set_state_flags(fnicp, st_flags, 1) 12403298552cba38f7c805ed338826dc76c405465c7Hiral Patel 1255df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarextern unsigned int fnic_log_level; 1265df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1275df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_MAIN_LOGGING 0x01 1285df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_FCS_LOGGING 0x02 1295df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_SCSI_LOGGING 0x04 1305df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_ISR_LOGGING 0x08 1315df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1325df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_CHECK_LOGGING(LEVEL, CMD) \ 1335df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekardo { \ 1345df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar if (unlikely(fnic_log_level & LEVEL)) \ 1355df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar do { \ 1365df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar CMD; \ 1375df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar } while (0); \ 1385df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar} while (0) 1395df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1405df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_MAIN_DBG(kern_level, host, fmt, args...) \ 1415df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_CHECK_LOGGING(FNIC_MAIN_LOGGING, \ 1425df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar shost_printk(kern_level, host, fmt, ##args);) 1435df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1445df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_FCS_DBG(kern_level, host, fmt, args...) \ 1455df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_CHECK_LOGGING(FNIC_FCS_LOGGING, \ 1465df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar shost_printk(kern_level, host, fmt, ##args);) 1475df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1485df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_SCSI_DBG(kern_level, host, fmt, args...) \ 1495df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_CHECK_LOGGING(FNIC_SCSI_LOGGING, \ 1505df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar shost_printk(kern_level, host, fmt, ##args);) 1515df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1525df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_ISR_DBG(kern_level, host, fmt, args...) \ 1535df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_CHECK_LOGGING(FNIC_ISR_LOGGING, \ 1545df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar shost_printk(kern_level, host, fmt, ##args);) 1555df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1565df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarextern const char *fnic_state_str[]; 1575df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1585df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarenum fnic_intx_intr_index { 1595df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_INTX_WQ_RQ_COPYWQ, 1605df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_INTX_ERR, 1615df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_INTX_NOTIFY, 1625df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_INTX_INTR_MAX, 1635df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar}; 1645df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1655df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarenum fnic_msix_intr_index { 1665df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_MSIX_RQ, 1675df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_MSIX_WQ, 1685df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_MSIX_WQ_COPY, 1695df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_MSIX_ERR_NOTIFY, 1705df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_MSIX_INTR_MAX, 1715df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar}; 1725df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1735df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarstruct fnic_msix_entry { 1745df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar int requested; 1755df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar char devname[IFNAMSIZ]; 1765df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar irqreturn_t (*isr)(int, void *); 1775df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar void *devid; 1785df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar}; 1795df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1805df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarenum fnic_state { 1815df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_IN_FC_MODE = 0, 1825df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_IN_FC_TRANS_ETH_MODE, 1835df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_IN_ETH_MODE, 1845df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar FNIC_IN_ETH_TRANS_FC_MODE, 1855df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar}; 1865df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1875df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_WQ_COPY_MAX 1 1885df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_WQ_MAX 1 1895df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_RQ_MAX 1 1905df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#define FNIC_CQ_MAX (FNIC_WQ_COPY_MAX + FNIC_WQ_MAX + FNIC_RQ_MAX) 1915df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1925df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarstruct mempool; 1935df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 1945df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar/* Per-instance private data structure */ 1955df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarstruct fnic { 1965df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct fc_lport *lport; 19778112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt struct fcoe_ctlr ctlr; /* FIP FCoE controller structure */ 1985df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct vnic_dev_bar bar0; 1995df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2005df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct msix_entry msix_entry[FNIC_MSIX_INTR_MAX]; 2015df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct fnic_msix_entry msix[FNIC_MSIX_INTR_MAX]; 2025df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2035df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct vnic_stats *stats; 2045df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned long stats_time; /* time of stats update */ 2055df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct vnic_nic_cfg *nic_cfg; 2065df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar char name[IFNAMSIZ]; 2075df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct timer_list notify_timer; /* used for MSI interrupts */ 2085df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2095df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int err_intr_offset; 2105df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int link_intr_offset; 2115df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2125df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int wq_count; 2135df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int cq_count; 2145df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2155df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u32 vlan_hw_insert:1; /* let hw insert the tag */ 2165df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u32 in_remove:1; /* fnic device in removal */ 2175df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u32 stop_rx_link_events:1; /* stop proc. rx frames, link events */ 2185df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2195df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct completion *remove_wait; /* device remove thread blocks */ 2205df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 22103298552cba38f7c805ed338826dc76c405465c7Hiral Patel atomic_t in_flight; /* io counter */ 22203298552cba38f7c805ed338826dc76c405465c7Hiral Patel u32 _reserved; /* fill hole */ 22303298552cba38f7c805ed338826dc76c405465c7Hiral Patel unsigned long state_flags; /* protected by host lock */ 2245df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar enum fnic_state state; 2255df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar spinlock_t fnic_lock; 2265df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2275df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u16 vlan_id; /* VLAN tag including priority */ 2285df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u8 data_src_addr[ETH_ALEN]; 2295df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u64 fcp_input_bytes; /* internal statistic */ 2305df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u64 fcp_output_bytes; /* internal statistic */ 2315df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u32 link_down_cnt; 2325df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar int link_status; 2335df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2345df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct list_head list; 2355df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct pci_dev *pdev; 2365df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct vnic_fc_config config; 2375df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct vnic_dev *vdev; 2385df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int raw_wq_count; 2395df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int wq_copy_count; 2405df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int rq_count; 2415df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar int fw_ack_index[FNIC_WQ_COPY_MAX]; 2425df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned short fw_ack_recd[FNIC_WQ_COPY_MAX]; 2435df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned short wq_copy_desc_low[FNIC_WQ_COPY_MAX]; 2445df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar unsigned int intr_count; 2455df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar u32 __iomem *legacy_pba; 2465df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct fnic_host_tag *tags; 2475df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar mempool_t *io_req_pool; 2485df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar mempool_t *io_sgl_pool[FNIC_SGL_NUM_CACHES]; 2495df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar spinlock_t io_req_lock[FNIC_IO_LOCKS]; /* locks for scsi cmnds */ 2505df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2515df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct work_struct link_work; 2525df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct work_struct frame_work; 2535df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct sk_buff_head frame_queue; 25478112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt struct sk_buff_head tx_queue; 2555df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2565df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar /* copy work queue cache line section */ 2575df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar ____cacheline_aligned struct vnic_wq_copy wq_copy[FNIC_WQ_COPY_MAX]; 2585df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar /* completion queue cache line section */ 2595df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar ____cacheline_aligned struct vnic_cq cq[FNIC_CQ_MAX]; 2605df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2615df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar spinlock_t wq_copy_lock[FNIC_WQ_COPY_MAX]; 2625df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2635df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar /* work queue cache line section */ 2645df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar ____cacheline_aligned struct vnic_wq wq[FNIC_WQ_MAX]; 2655df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar spinlock_t wq_lock[FNIC_WQ_MAX]; 2665df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2675df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar /* receive queue cache line section */ 2685df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar ____cacheline_aligned struct vnic_rq rq[FNIC_RQ_MAX]; 2695df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2705df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar /* interrupt resource cache line section */ 2715df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar ____cacheline_aligned struct vnic_intr intr[FNIC_MSIX_INTR_MAX]; 2725df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar}; 2735df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 27478112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtstatic inline struct fnic *fnic_from_ctlr(struct fcoe_ctlr *fip) 27578112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt{ 27678112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt return container_of(fip, struct fnic, ctlr); 27778112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt} 27878112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholt 2795df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarextern struct workqueue_struct *fnic_event_queue; 2805df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarextern struct device_attribute *fnic_attrs[]; 2815df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2825df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_clear_intr_mode(struct fnic *fnic); 2835df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_set_intr_mode(struct fnic *fnic); 2845df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_free_intr(struct fnic *fnic); 2855df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_request_intr(struct fnic *fnic); 2865df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 2875df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_send(struct fc_lport *, struct fc_frame *); 2885df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf); 2895df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_handle_frame(struct work_struct *work); 2905df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_handle_link(struct work_struct *work); 2915df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_rq_cmpl_handler(struct fnic *fnic, int); 2925df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_alloc_rq_frame(struct vnic_rq *rq); 2935df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf); 29478112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtvoid fnic_flush_tx(struct fnic *); 29578112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtvoid fnic_eth_send(struct fcoe_ctlr *, struct sk_buff *skb); 29678112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtvoid fnic_set_port_id(struct fc_lport *, u32, struct fc_frame *); 29778112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtvoid fnic_update_mac(struct fc_lport *, u8 *new); 29878112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtvoid fnic_update_mac_locked(struct fnic *, u8 *new); 2995df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 300f281233d3eba15fb225d21ae2e228fd4553d824aJeff Garzikint fnic_queuecommand(struct Scsi_Host *, struct scsi_cmnd *); 3015df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_abort_cmd(struct scsi_cmnd *); 3025df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_device_reset(struct scsi_cmnd *); 3035df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_host_reset(struct scsi_cmnd *); 3045df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_reset(struct Scsi_Host *); 3055df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_scsi_cleanup(struct fc_lport *); 3065df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_scsi_abort_io(struct fc_lport *); 3075df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_empty_scsi_cleanup(struct fc_lport *); 3085df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_exch_mgr_reset(struct fc_lport *, u32, u32); 3095df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_wq_copy_cmpl_handler(struct fnic *fnic, int); 3105df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_wq_cmpl_handler(struct fnic *fnic, int); 31178112e5558064cb4d2e355aed87b2036fcdfe3ddJoe Eykholtint fnic_flogi_reg_handler(struct fnic *fnic, u32); 3125df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_wq_copy_cleanup_handler(struct vnic_wq_copy *wq, 3135df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar struct fcpio_host_req *desc); 3145df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarint fnic_fw_reset_handler(struct fnic *fnic); 3155df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_terminate_rport_io(struct fc_rport *); 3165df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarconst char *fnic_state_to_str(unsigned int state); 3175df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 3185df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_log_q_error(struct fnic *fnic); 3195df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekarvoid fnic_handle_link_event(struct fnic *fnic); 3205df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar 321a0bf1ca27b644c1c4b1f0ea2d81f99471b2549e8Hiral Patelint fnic_is_abts_pending(struct fnic *, struct scsi_cmnd *); 322a0bf1ca27b644c1c4b1f0ea2d81f99471b2549e8Hiral Patel 32303298552cba38f7c805ed338826dc76c405465c7Hiral Patelstatic inline int 32403298552cba38f7c805ed338826dc76c405465c7Hiral Patelfnic_chk_state_flags_locked(struct fnic *fnic, unsigned long st_flags) 32503298552cba38f7c805ed338826dc76c405465c7Hiral Patel{ 32603298552cba38f7c805ed338826dc76c405465c7Hiral Patel return ((fnic->state_flags & st_flags) == st_flags); 32703298552cba38f7c805ed338826dc76c405465c7Hiral Patel} 32803298552cba38f7c805ed338826dc76c405465c7Hiral Patelvoid __fnic_set_state_flags(struct fnic *, unsigned long, unsigned long); 3295df6d737dd4b0fe9eccf943abb3677cfea05a6c4Abhijeet Joglekar#endif /* _FNIC_H_ */ 330