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qla_os.c
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qla_os.c
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// SPDX-License-Identifier: GPL-2.0-only
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/kthread.h>
#include <linux/mutex.h>
#include <linux/kobject.h>
#include <linux/slab.h>
#include <linux/blk-mq-pci.h>
#include <linux/refcount.h>
#include <linux/crash_dump.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>
#include "qla_target.h"
/*
* Driver version
*/
char qla2x00_version_str[40];
static int apidev_major;
/*
* SRB allocation cache
*/
struct kmem_cache *srb_cachep;
int ql2xfulldump_on_mpifail;
module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ql2xfulldump_on_mpifail,
"Set this to take full dump on MPI hang.");
int ql2xenforce_iocb_limit = 1;
module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(ql2xenforce_iocb_limit,
"Enforce IOCB throttling, to avoid FW congestion. (default: 1)");
/*
* CT6 CTX allocation cache
*/
static struct kmem_cache *ctx_cachep;
/*
* error level for logging
*/
uint ql_errlev = 0x8001;
static int ql2xenableclass2;
module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xenableclass2,
"Specify if Class 2 operations are supported from the very "
"beginning. Default is 0 - class 2 not supported.");
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO);
MODULE_PARM_DESC(ql2xlogintimeout,
"Login timeout value in seconds.");
int qlport_down_retry;
module_param(qlport_down_retry, int, S_IRUGO);
MODULE_PARM_DESC(qlport_down_retry,
"Maximum number of command retries to a port that returns "
"a PORT-DOWN status.");
int ql2xplogiabsentdevice;
module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xplogiabsentdevice,
"Option to enable PLOGI to devices that are not present after "
"a Fabric scan. This is needed for several broken switches. "
"Default is 0 - no PLOGI. 1 - perform PLOGI.");
int ql2xloginretrycount;
module_param(ql2xloginretrycount, int, S_IRUGO);
MODULE_PARM_DESC(ql2xloginretrycount,
"Specify an alternate value for the NVRAM login retry count.");
int ql2xallocfwdump = 1;
module_param(ql2xallocfwdump, int, S_IRUGO);
MODULE_PARM_DESC(ql2xallocfwdump,
"Option to enable allocation of memory for a firmware dump "
"during HBA initialization. Memory allocation requirements "
"vary by ISP type. Default is 1 - allocate memory.");
int ql2xextended_error_logging;
module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
module_param_named(logging, ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xextended_error_logging,
"Option to enable extended error logging,\n"
"\t\tDefault is 0 - no logging. 0x40000000 - Module Init & Probe.\n"
"\t\t0x20000000 - Mailbox Cmnds. 0x10000000 - Device Discovery.\n"
"\t\t0x08000000 - IO tracing. 0x04000000 - DPC Thread.\n"
"\t\t0x02000000 - Async events. 0x01000000 - Timer routines.\n"
"\t\t0x00800000 - User space. 0x00400000 - Task Management.\n"
"\t\t0x00200000 - AER/EEH. 0x00100000 - Multi Q.\n"
"\t\t0x00080000 - P3P Specific. 0x00040000 - Virtual Port.\n"
"\t\t0x00020000 - Buffer Dump. 0x00010000 - Misc.\n"
"\t\t0x00008000 - Verbose. 0x00004000 - Target.\n"
"\t\t0x00002000 - Target Mgmt. 0x00001000 - Target TMF.\n"
"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
"\t\t0x1e400000 - Preferred value for capturing essential "
"debug information (equivalent to old "
"ql2xextended_error_logging=1).\n"
"\t\tDo LOGICAL OR of the value to enable more than one level");
int ql2xshiftctondsd = 6;
module_param(ql2xshiftctondsd, int, S_IRUGO);
MODULE_PARM_DESC(ql2xshiftctondsd,
"Set to control shifting of command type processing "
"based on total number of SG elements.");
int ql2xfdmienable = 1;
module_param(ql2xfdmienable, int, S_IRUGO|S_IWUSR);
module_param_named(fdmi, ql2xfdmienable, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xfdmienable,
"Enables FDMI registrations. "
"0 - no FDMI registrations. "
"1 - provide FDMI registrations (default).");
#define MAX_Q_DEPTH 64
static int ql2xmaxqdepth = MAX_Q_DEPTH;
module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to set for each LUN. "
"Default is 64.");
int ql2xenabledif = 2;
module_param(ql2xenabledif, int, S_IRUGO);
MODULE_PARM_DESC(ql2xenabledif,
" Enable T10-CRC-DIF:\n"
" Default is 2.\n"
" 0 -- No DIF Support\n"
" 1 -- Enable DIF for all types\n"
" 2 -- Enable DIF for all types, except Type 0.\n");
#if (IS_ENABLED(CONFIG_NVME_FC))
int ql2xnvmeenable = 1;
#else
int ql2xnvmeenable;
#endif
module_param(ql2xnvmeenable, int, 0644);
MODULE_PARM_DESC(ql2xnvmeenable,
"Enables NVME support. "
"0 - no NVMe. Default is Y");
int ql2xenablehba_err_chk = 2;
module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xenablehba_err_chk,
" Enable T10-CRC-DIF Error isolation by HBA:\n"
" Default is 2.\n"
" 0 -- Error isolation disabled\n"
" 1 -- Error isolation enabled only for DIX Type 0\n"
" 2 -- Error isolation enabled for all Types\n");
int ql2xiidmaenable = 1;
module_param(ql2xiidmaenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xiidmaenable,
"Enables iIDMA settings "
"Default is 1 - perform iIDMA. 0 - no iIDMA.");
int ql2xmqsupport = 1;
module_param(ql2xmqsupport, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmqsupport,
"Enable on demand multiple queue pairs support "
"Default is 1 for supported. "
"Set it to 0 to turn off mq qpair support.");
int ql2xfwloadbin;
module_param(ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
module_param_named(fwload, ql2xfwloadbin, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xfwloadbin,
"Option to specify location from which to load ISP firmware:.\n"
" 2 -- load firmware via the request_firmware() (hotplug).\n"
" interface.\n"
" 1 -- load firmware from flash.\n"
" 0 -- use default semantics.\n");
int ql2xetsenable;
module_param(ql2xetsenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xetsenable,
"Enables firmware ETS burst."
"Default is 0 - skip ETS enablement.");
int ql2xdbwr = 1;
module_param(ql2xdbwr, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xdbwr,
"Option to specify scheme for request queue posting.\n"
" 0 -- Regular doorbell.\n"
" 1 -- CAMRAM doorbell (faster).\n");
int ql2xtargetreset = 1;
module_param(ql2xtargetreset, int, S_IRUGO);
MODULE_PARM_DESC(ql2xtargetreset,
"Enable target reset."
"Default is 1 - use hw defaults.");
int ql2xgffidenable;
module_param(ql2xgffidenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xgffidenable,
"Enables GFF_ID checks of port type. "
"Default is 0 - Do not use GFF_ID information.");
int ql2xasynctmfenable = 1;
module_param(ql2xasynctmfenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xasynctmfenable,
"Enables issue of TM IOCBs asynchronously via IOCB mechanism"
"Default is 1 - Issue TM IOCBs via mailbox mechanism.");
int ql2xdontresethba;
module_param(ql2xdontresethba, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xdontresethba,
"Option to specify reset behaviour.\n"
" 0 (Default) -- Reset on failure.\n"
" 1 -- Do not reset on failure.\n");
uint64_t ql2xmaxlun = MAX_LUNS;
module_param(ql2xmaxlun, ullong, S_IRUGO);
MODULE_PARM_DESC(ql2xmaxlun,
"Defines the maximum LU number to register with the SCSI "
"midlayer. Default is 65535.");
int ql2xmdcapmask = 0x1F;
module_param(ql2xmdcapmask, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmdcapmask,
"Set the Minidump driver capture mask level. "
"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
int ql2xmdenable = 1;
module_param(ql2xmdenable, int, S_IRUGO);
MODULE_PARM_DESC(ql2xmdenable,
"Enable/disable MiniDump. "
"0 - MiniDump disabled. "
"1 (Default) - MiniDump enabled.");
int ql2xexlogins;
module_param(ql2xexlogins, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xexlogins,
"Number of extended Logins. "
"0 (Default)- Disabled.");
int ql2xexchoffld = 1024;
module_param(ql2xexchoffld, uint, 0644);
MODULE_PARM_DESC(ql2xexchoffld,
"Number of target exchanges.");
int ql2xiniexchg = 1024;
module_param(ql2xiniexchg, uint, 0644);
MODULE_PARM_DESC(ql2xiniexchg,
"Number of initiator exchanges.");
int ql2xfwholdabts;
module_param(ql2xfwholdabts, int, S_IRUGO);
MODULE_PARM_DESC(ql2xfwholdabts,
"Allow FW to hold status IOCB until ABTS rsp received. "
"0 (Default) Do not set fw option. "
"1 - Set fw option to hold ABTS.");
int ql2xmvasynctoatio = 1;
module_param(ql2xmvasynctoatio, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmvasynctoatio,
"Move PUREX, ABTS RX and RIDA IOCBs to ATIOQ"
"0 (Default). Do not move IOCBs"
"1 - Move IOCBs.");
int ql2xautodetectsfp = 1;
module_param(ql2xautodetectsfp, int, 0444);
MODULE_PARM_DESC(ql2xautodetectsfp,
"Detect SFP range and set appropriate distance.\n"
"1 (Default): Enable\n");
int ql2xenablemsix = 1;
module_param(ql2xenablemsix, int, 0444);
MODULE_PARM_DESC(ql2xenablemsix,
"Set to enable MSI or MSI-X interrupt mechanism.\n"
" Default is 1, enable MSI-X interrupt mechanism.\n"
" 0 -- enable traditional pin-based mechanism.\n"
" 1 -- enable MSI-X interrupt mechanism.\n"
" 2 -- enable MSI interrupt mechanism.\n");
int qla2xuseresexchforels;
module_param(qla2xuseresexchforels, int, 0444);
MODULE_PARM_DESC(qla2xuseresexchforels,
"Reserve 1/2 of emergency exchanges for ELS.\n"
" 0 (default): disabled");
static int ql2xprotmask;
module_param(ql2xprotmask, int, 0644);
MODULE_PARM_DESC(ql2xprotmask,
"Override DIF/DIX protection capabilities mask\n"
"Default is 0 which sets protection mask based on "
"capabilities reported by HBA firmware.\n");
static int ql2xprotguard;
module_param(ql2xprotguard, int, 0644);
MODULE_PARM_DESC(ql2xprotguard, "Override choice of DIX checksum\n"
" 0 -- Let HBA firmware decide\n"
" 1 -- Force T10 CRC\n"
" 2 -- Force IP checksum\n");
int ql2xdifbundlinginternalbuffers;
module_param(ql2xdifbundlinginternalbuffers, int, 0644);
MODULE_PARM_DESC(ql2xdifbundlinginternalbuffers,
"Force using internal buffers for DIF information\n"
"0 (Default). Based on check.\n"
"1 Force using internal buffers\n");
int ql2xsmartsan;
module_param(ql2xsmartsan, int, 0444);
module_param_named(smartsan, ql2xsmartsan, int, 0444);
MODULE_PARM_DESC(ql2xsmartsan,
"Send SmartSAN Management Attributes for FDMI Registration."
" Default is 0 - No SmartSAN registration,"
" 1 - Register SmartSAN Management Attributes.");
int ql2xrdpenable;
module_param(ql2xrdpenable, int, 0444);
module_param_named(rdpenable, ql2xrdpenable, int, 0444);
MODULE_PARM_DESC(ql2xrdpenable,
"Enables RDP responses. "
"0 - no RDP responses (default). "
"1 - provide RDP responses.");
int ql2xabts_wait_nvme = 1;
module_param(ql2xabts_wait_nvme, int, 0444);
MODULE_PARM_DESC(ql2xabts_wait_nvme,
"To wait for ABTS response on I/O timeouts for NVMe. (default: 1)");
static void qla2x00_clear_drv_active(struct qla_hw_data *);
static void qla2x00_free_device(scsi_qla_host_t *);
static int qla2xxx_map_queues(struct Scsi_Host *shost);
static void qla2x00_destroy_deferred_work(struct qla_hw_data *);
static struct scsi_transport_template *qla2xxx_transport_template = NULL;
struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
/* TODO Convert to inlines
*
* Timer routines
*/
__inline__ void
qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
{
timer_setup(&vha->timer, qla2x00_timer, 0);
vha->timer.expires = jiffies + interval * HZ;
add_timer(&vha->timer);
vha->timer_active = 1;
}
static inline void
qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
{
/* Currently used for 82XX only. */
if (vha->device_flags & DFLG_DEV_FAILED) {
ql_dbg(ql_dbg_timer, vha, 0x600d,
"Device in a failed state, returning.\n");
return;
}
mod_timer(&vha->timer, jiffies + interval * HZ);
}
static __inline__ void
qla2x00_stop_timer(scsi_qla_host_t *vha)
{
del_timer_sync(&vha->timer);
vha->timer_active = 0;
}
static int qla2x00_do_dpc(void *data);
static void qla2x00_rst_aen(scsi_qla_host_t *);
static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
struct req_que **, struct rsp_que **);
static void qla2x00_free_fw_dump(struct qla_hw_data *);
static void qla2x00_mem_free(struct qla_hw_data *);
int qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
struct qla_qpair *qpair);
/* -------------------------------------------------------------------------- */
static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
struct rsp_que *rsp)
{
struct qla_hw_data *ha = vha->hw;
rsp->qpair = ha->base_qpair;
rsp->req = req;
ha->base_qpair->hw = ha;
ha->base_qpair->req = req;
ha->base_qpair->rsp = rsp;
ha->base_qpair->vha = vha;
ha->base_qpair->qp_lock_ptr = &ha->hardware_lock;
ha->base_qpair->use_shadow_reg = IS_SHADOW_REG_CAPABLE(ha) ? 1 : 0;
ha->base_qpair->msix = &ha->msix_entries[QLA_MSIX_RSP_Q];
ha->base_qpair->srb_mempool = ha->srb_mempool;
INIT_LIST_HEAD(&ha->base_qpair->hints_list);
ha->base_qpair->enable_class_2 = ql2xenableclass2;
/* init qpair to this cpu. Will adjust at run time. */
qla_cpu_update(rsp->qpair, raw_smp_processor_id());
ha->base_qpair->pdev = ha->pdev;
if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha))
ha->base_qpair->reqq_start_iocbs = qla_83xx_start_iocbs;
}
static int qla2x00_alloc_queues(struct qla_hw_data *ha, struct req_que *req,
struct rsp_que *rsp)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
ha->req_q_map = kcalloc(ha->max_req_queues, sizeof(struct req_que *),
GFP_KERNEL);
if (!ha->req_q_map) {
ql_log(ql_log_fatal, vha, 0x003b,
"Unable to allocate memory for request queue ptrs.\n");
goto fail_req_map;
}
ha->rsp_q_map = kcalloc(ha->max_rsp_queues, sizeof(struct rsp_que *),
GFP_KERNEL);
if (!ha->rsp_q_map) {
ql_log(ql_log_fatal, vha, 0x003c,
"Unable to allocate memory for response queue ptrs.\n");
goto fail_rsp_map;
}
ha->base_qpair = kzalloc(sizeof(struct qla_qpair), GFP_KERNEL);
if (ha->base_qpair == NULL) {
ql_log(ql_log_warn, vha, 0x00e0,
"Failed to allocate base queue pair memory.\n");
goto fail_base_qpair;
}
qla_init_base_qpair(vha, req, rsp);
if ((ql2xmqsupport || ql2xnvmeenable) && ha->max_qpairs) {
ha->queue_pair_map = kcalloc(ha->max_qpairs, sizeof(struct qla_qpair *),
GFP_KERNEL);
if (!ha->queue_pair_map) {
ql_log(ql_log_fatal, vha, 0x0180,
"Unable to allocate memory for queue pair ptrs.\n");
goto fail_qpair_map;
}
}
/*
* Make sure we record at least the request and response queue zero in
* case we need to free them if part of the probe fails.
*/
ha->rsp_q_map[0] = rsp;
ha->req_q_map[0] = req;
set_bit(0, ha->rsp_qid_map);
set_bit(0, ha->req_qid_map);
return 0;
fail_qpair_map:
kfree(ha->base_qpair);
ha->base_qpair = NULL;
fail_base_qpair:
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
fail_rsp_map:
kfree(ha->req_q_map);
ha->req_q_map = NULL;
fail_req_map:
return -ENOMEM;
}
static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
{
if (IS_QLAFX00(ha)) {
if (req && req->ring_fx00)
dma_free_coherent(&ha->pdev->dev,
(req->length_fx00 + 1) * sizeof(request_t),
req->ring_fx00, req->dma_fx00);
} else if (req && req->ring)
dma_free_coherent(&ha->pdev->dev,
(req->length + 1) * sizeof(request_t),
req->ring, req->dma);
if (req)
kfree(req->outstanding_cmds);
kfree(req);
}
static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
{
if (IS_QLAFX00(ha)) {
if (rsp && rsp->ring_fx00)
dma_free_coherent(&ha->pdev->dev,
(rsp->length_fx00 + 1) * sizeof(request_t),
rsp->ring_fx00, rsp->dma_fx00);
} else if (rsp && rsp->ring) {
dma_free_coherent(&ha->pdev->dev,
(rsp->length + 1) * sizeof(response_t),
rsp->ring, rsp->dma);
}
kfree(rsp);
}
static void qla2x00_free_queues(struct qla_hw_data *ha)
{
struct req_que *req;
struct rsp_que *rsp;
int cnt;
unsigned long flags;
if (ha->queue_pair_map) {
kfree(ha->queue_pair_map);
ha->queue_pair_map = NULL;
}
if (ha->base_qpair) {
kfree(ha->base_qpair);
ha->base_qpair = NULL;
}
spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
if (!test_bit(cnt, ha->req_qid_map))
continue;
req = ha->req_q_map[cnt];
clear_bit(cnt, ha->req_qid_map);
ha->req_q_map[cnt] = NULL;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_req_que(ha, req);
spin_lock_irqsave(&ha->hardware_lock, flags);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(ha->req_q_map);
ha->req_q_map = NULL;
spin_lock_irqsave(&ha->hardware_lock, flags);
for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
if (!test_bit(cnt, ha->rsp_qid_map))
continue;
rsp = ha->rsp_q_map[cnt];
clear_bit(cnt, ha->rsp_qid_map);
ha->rsp_q_map[cnt] = NULL;
spin_unlock_irqrestore(&ha->hardware_lock, flags);
qla2x00_free_rsp_que(ha, rsp);
spin_lock_irqsave(&ha->hardware_lock, flags);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
kfree(ha->rsp_q_map);
ha->rsp_q_map = NULL;
}
static char *
qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
{
struct qla_hw_data *ha = vha->hw;
static const char *const pci_bus_modes[] = {
"33", "66", "100", "133",
};
uint16_t pci_bus;
pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
if (pci_bus) {
snprintf(str, str_len, "PCI-X (%s MHz)",
pci_bus_modes[pci_bus]);
} else {
pci_bus = (ha->pci_attr & BIT_8) >> 8;
snprintf(str, str_len, "PCI (%s MHz)", pci_bus_modes[pci_bus]);
}
return str;
}
static char *
qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str, size_t str_len)
{
static const char *const pci_bus_modes[] = {
"33", "66", "100", "133",
};
struct qla_hw_data *ha = vha->hw;
uint32_t pci_bus;
if (pci_is_pcie(ha->pdev)) {
uint32_t lstat, lspeed, lwidth;
const char *speed_str;
pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
lspeed = lstat & PCI_EXP_LNKCAP_SLS;
lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
switch (lspeed) {
case 1:
speed_str = "2.5GT/s";
break;
case 2:
speed_str = "5.0GT/s";
break;
case 3:
speed_str = "8.0GT/s";
break;
case 4:
speed_str = "16.0GT/s";
break;
default:
speed_str = "<unknown>";
break;
}
snprintf(str, str_len, "PCIe (%s x%d)", speed_str, lwidth);
return str;
}
pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
if (pci_bus == 0 || pci_bus == 8)
snprintf(str, str_len, "PCI (%s MHz)",
pci_bus_modes[pci_bus >> 3]);
else
snprintf(str, str_len, "PCI-X Mode %d (%s MHz)",
pci_bus & 4 ? 2 : 1,
pci_bus_modes[pci_bus & 3]);
return str;
}
static char *
qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
{
char un_str[10];
struct qla_hw_data *ha = vha->hw;
snprintf(str, size, "%d.%02d.%02d ", ha->fw_major_version,
ha->fw_minor_version, ha->fw_subminor_version);
if (ha->fw_attributes & BIT_9) {
strcat(str, "FLX");
return (str);
}
switch (ha->fw_attributes & 0xFF) {
case 0x7:
strcat(str, "EF");
break;
case 0x17:
strcat(str, "TP");
break;
case 0x37:
strcat(str, "IP");
break;
case 0x77:
strcat(str, "VI");
break;
default:
sprintf(un_str, "(%x)", ha->fw_attributes);
strcat(str, un_str);
break;
}
if (ha->fw_attributes & 0x100)
strcat(str, "X");
return (str);
}
static char *
qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str, size_t size)
{
struct qla_hw_data *ha = vha->hw;
snprintf(str, size, "%d.%02d.%02d (%x)", ha->fw_major_version,
ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
return str;
}
void qla2x00_sp_free_dma(srb_t *sp)
{
struct qla_hw_data *ha = sp->vha->hw;
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
/* List assured to be having elements */
qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
}
if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
ctx1->fcp_cmnd_dma);
list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
mempool_free(ctx1, ha->ctx_mempool);
}
}
void qla2x00_sp_compl(srb_t *sp, int res)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct completion *comp = sp->comp;
sp->free(sp);
cmd->result = res;
CMD_SP(cmd) = NULL;
cmd->scsi_done(cmd);
if (comp)
complete(comp);
}
void qla2xxx_qpair_sp_free_dma(srb_t *sp)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct qla_hw_data *ha = sp->fcport->vha->hw;
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
/* List assured to be having elements */
qla2x00_clean_dsd_pool(ha, sp->u.scmd.crc_ctx);
sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
}
if (sp->flags & SRB_DIF_BUNDL_DMA_VALID) {
struct crc_context *difctx = sp->u.scmd.crc_ctx;
struct dsd_dma *dif_dsd, *nxt_dsd;
list_for_each_entry_safe(dif_dsd, nxt_dsd,
&difctx->ldif_dma_hndl_list, list) {
list_del(&dif_dsd->list);
dma_pool_free(ha->dif_bundl_pool, dif_dsd->dsd_addr,
dif_dsd->dsd_list_dma);
kfree(dif_dsd);
difctx->no_dif_bundl--;
}
list_for_each_entry_safe(dif_dsd, nxt_dsd,
&difctx->ldif_dsd_list, list) {
list_del(&dif_dsd->list);
dma_pool_free(ha->dl_dma_pool, dif_dsd->dsd_addr,
dif_dsd->dsd_list_dma);
kfree(dif_dsd);
difctx->no_ldif_dsd--;
}
if (difctx->no_ldif_dsd) {
ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
"%s: difctx->no_ldif_dsd=%x\n",
__func__, difctx->no_ldif_dsd);
}
if (difctx->no_dif_bundl) {
ql_dbg(ql_dbg_tgt+ql_dbg_verbose, sp->vha, 0xe022,
"%s: difctx->no_dif_bundl=%x\n",
__func__, difctx->no_dif_bundl);
}
sp->flags &= ~SRB_DIF_BUNDL_DMA_VALID;
}
if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
struct ct6_dsd *ctx1 = sp->u.scmd.ct6_ctx;
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx1->fcp_cmnd,
ctx1->fcp_cmnd_dma);
list_splice(&ctx1->dsd_list, &ha->gbl_dsd_list);
ha->gbl_dsd_inuse -= ctx1->dsd_use_cnt;
ha->gbl_dsd_avail += ctx1->dsd_use_cnt;
mempool_free(ctx1, ha->ctx_mempool);
sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
struct crc_context *ctx0 = sp->u.scmd.crc_ctx;
dma_pool_free(ha->dl_dma_pool, ctx0, ctx0->crc_ctx_dma);
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
}
void qla2xxx_qpair_sp_compl(srb_t *sp, int res)
{
struct scsi_cmnd *cmd = GET_CMD_SP(sp);
struct completion *comp = sp->comp;
sp->free(sp);
cmd->result = res;
CMD_SP(cmd) = NULL;
cmd->scsi_done(cmd);
if (comp)
complete(comp);
}
static int
qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
if (unlikely(test_bit(UNLOADING, &base_vha->dpc_flags)) ||
WARN_ON_ONCE(!rport)) {
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (ha->mqenable) {
uint32_t tag;
uint16_t hwq;
struct qla_qpair *qpair = NULL;
tag = blk_mq_unique_tag(cmd->request);
hwq = blk_mq_unique_tag_to_hwq(tag);
qpair = ha->queue_pair_map[hwq];
if (qpair)
return qla2xxx_mqueuecommand(host, cmd, qpair);
}
if (ha->flags.eeh_busy) {
if (ha->flags.pci_channel_io_perm_failure) {
ql_dbg(ql_dbg_aer, vha, 0x9010,
"PCI Channel IO permanent failure, exiting "
"cmd=%p.\n", cmd);
cmd->result = DID_NO_CONNECT << 16;
} else {
ql_dbg(ql_dbg_aer, vha, 0x9011,
"EEH_Busy, Requeuing the cmd=%p.\n", cmd);
cmd->result = DID_REQUEUE << 16;
}
goto qc24_fail_command;
}
rval = fc_remote_port_chkready(rport);
if (rval) {
cmd->result = rval;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3003,
"fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
cmd, rval);
goto qc24_fail_command;
}
if (!vha->flags.difdix_supported &&
scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
ql_dbg(ql_dbg_io, vha, 0x3004,
"DIF Cap not reg, fail DIF capable cmd's:%p.\n",
cmd);
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (!fcport || fcport->deleted) {
cmd->result = DID_IMM_RETRY << 16;
goto qc24_fail_command;
}
if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
ql_dbg(ql_dbg_io, vha, 0x3005,
"Returning DNC, fcport_state=%d loop_state=%d.\n",
atomic_read(&fcport->state),
atomic_read(&base_vha->loop_state));
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
goto qc24_target_busy;
}
/*
* Return target busy if we've received a non-zero retry_delay_timer
* in a FCP_RSP.
*/
if (fcport->retry_delay_timestamp == 0) {
/* retry delay not set */
} else if (time_after(jiffies, fcport->retry_delay_timestamp))
fcport->retry_delay_timestamp = 0;
else
goto qc24_target_busy;
sp = scsi_cmd_priv(cmd);
qla2xxx_init_sp(sp, vha, vha->hw->base_qpair, fcport);
sp->u.scmd.cmd = cmd;
sp->type = SRB_SCSI_CMD;
CMD_SP(cmd) = (void *)sp;
sp->free = qla2x00_sp_free_dma;
sp->done = qla2x00_sp_compl;
rval = ha->isp_ops->start_scsi(sp);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3013,
"Start scsi failed rval=%d for cmd=%p.\n", rval, cmd);
goto qc24_host_busy_free_sp;
}
return 0;
qc24_host_busy_free_sp:
sp->free(sp);
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;
qc24_fail_command:
cmd->scsi_done(cmd);
return 0;
}
/* For MQ supported I/O */
int
qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
struct qla_qpair *qpair)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
struct qla_hw_data *ha = vha->hw;
struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
srb_t *sp;
int rval;
rval = rport ? fc_remote_port_chkready(rport) : (DID_NO_CONNECT << 16);
if (rval) {
cmd->result = rval;
ql_dbg(ql_dbg_io + ql_dbg_verbose, vha, 0x3076,
"fc_remote_port_chkready failed for cmd=%p, rval=0x%x.\n",
cmd, rval);
goto qc24_fail_command;
}
if (!qpair->online) {
ql_dbg(ql_dbg_io, vha, 0x3077,
"qpair not online. eeh_busy=%d.\n", ha->flags.eeh_busy);
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (!fcport || fcport->deleted) {
cmd->result = DID_IMM_RETRY << 16;
goto qc24_fail_command;
}
if (atomic_read(&fcport->state) != FCS_ONLINE || fcport->deleted) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
ql_dbg(ql_dbg_io, vha, 0x3077,
"Returning DNC, fcport_state=%d loop_state=%d.\n",
atomic_read(&fcport->state),
atomic_read(&base_vha->loop_state));
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
goto qc24_target_busy;
}
/*