From: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
Base the number of outstanding requests the driver will keep track of on the
available resources instead of being hard-coded.
Signed-off-by: Chad Dupuis <chad.dupuis@xxxxxxxxxx>
Signed-off-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_bsg.c | 2 +-
drivers/scsi/qla2xxx/qla_dbg.c | 2 +-
drivers/scsi/qla2xxx/qla_def.h | 12 ++++----
drivers/scsi/qla2xxx/qla_gbl.h | 3 ++
drivers/scsi/qla2xxx/qla_init.c | 54 +++++++++++++++++++++++++++++++++++-
drivers/scsi/qla2xxx/qla_iocb.c | 37 ++++++++++++-------------
drivers/scsi/qla2xxx/qla_isr.c | 10 +++---
drivers/scsi/qla2xxx/qla_mbx.c | 8 +++---
drivers/scsi/qla2xxx/qla_mid.c | 7 ++++-
drivers/scsi/qla2xxx/qla_nx.c | 2 +-
drivers/scsi/qla2xxx/qla_os.c | 11 +++++--
drivers/scsi/qla2xxx/qla_target.c | 4 +-
drivers/scsi/qla2xxx/qla_target.h | 5 ++-
13 files changed, 110 insertions(+), 47 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 9f34ded..f7cb6a3 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -1950,7 +1950,7 @@ qla24xx_bsg_timeout(struct fc_bsg_job *bsg_job)
if (!req)
continue;
- for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
if (((sp->type == SRB_CT_CMD) ||
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 53f9e49..2f3e765 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -11,7 +11,7 @@
* ----------------------------------------------------------------------
* | Level | Last Value Used | Holes |
* ----------------------------------------------------------------------
- * | Module Init and Probe | 0x0125 | 0x4b,0xba,0xfa |
+ * | Module Init and Probe | 0x0126 | 0x4b,0xba,0xfa |
* | Mailbox commands | 0x114f | 0x111a-0x111b |
* | | | 0x112c-0x112e |
* | | | 0x113a |
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 6e7727f..a84bb8d 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -253,8 +253,8 @@
#define LOOP_DOWN_TIME 255 /* 240 */
#define LOOP_DOWN_RESET (LOOP_DOWN_TIME - 30)
-/* Maximum outstanding commands in ISP queues (1-65535) */
-#define MAX_OUTSTANDING_COMMANDS 1024
+#define DEFAULT_OUTSTANDING_COMMANDS 1024
+#define MIN_OUTSTANDING_COMMANDS 128
/* ISP request and response entry counts (37-65535) */
#define REQUEST_ENTRY_CNT_2100 128 /* Number of request entries. */
@@ -2533,8 +2533,9 @@ struct req_que {
uint16_t qos;
uint16_t vp_idx;
struct rsp_que *rsp;
- srb_t *outstanding_cmds[MAX_OUTSTANDING_COMMANDS];
+ srb_t **outstanding_cmds;
uint32_t current_outstanding_cmd;
+ uint16_t num_outstanding_cmds;
int max_q_depth;
};
@@ -2561,7 +2562,7 @@ struct qlt_hw_data {
void *target_lport_ptr;
struct qla_tgt_func_tmpl *tgt_ops;
struct qla_tgt *qla_tgt;
- struct qla_tgt_cmd *cmds[MAX_OUTSTANDING_COMMANDS];
+ struct qla_tgt_cmd *cmds[DEFAULT_OUTSTANDING_COMMANDS];
uint16_t current_handle;
struct qla_tgt_vp_map *tgt_vp_map;
@@ -2887,6 +2888,7 @@ struct qla_hw_data {
#define RISC_START_ADDRESS_2300 0x800
#define RISC_START_ADDRESS_2400 0x100000
uint16_t fw_xcb_count;
+ uint16_t fw_iocb_count;
uint16_t fw_options[16]; /* slots: 1,2,3,10,11 */
uint8_t fw_seriallink_options[4];
@@ -3248,8 +3250,6 @@ struct qla_tgt_vp_map {
#define NVRAM_DELAY() udelay(10)
-#define INVALID_HANDLE (MAX_OUTSTANDING_COMMANDS+1)
-
/*
* Flash support definitions
*/
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 2411d1a..fba0651 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -84,6 +84,9 @@ extern int qla83xx_nic_core_reset(scsi_qla_host_t *);
extern void qla83xx_reset_ownership(scsi_qla_host_t *);
extern int qla2xxx_mctp_dump(scsi_qla_host_t *);
+extern int
+qla2x00_alloc_outstanding_cmds(struct qla_hw_data *, struct req_que *);
+
/*
* Global Data in qla_os.c source file.
*/
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 563eee3..81e8cca 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1559,6 +1559,47 @@ done:
return rval;
}
+int
+qla2x00_alloc_outstanding_cmds(struct qla_hw_data *ha, struct req_que *req)
+{
+ /* Don't try to reallocate the array */
+ if (req->outstanding_cmds)
+ return QLA_SUCCESS;
+
+ if (!IS_FWI2_CAPABLE(ha) || (ha->mqiobase &&
+ (ql2xmultique_tag || ql2xmaxqueues > 1)))
+ req->num_outstanding_cmds = DEFAULT_OUTSTANDING_COMMANDS;
+ else {
+ if (ha->fw_xcb_count <= ha->fw_iocb_count)
+ req->num_outstanding_cmds = ha->fw_xcb_count;
+ else
+ req->num_outstanding_cmds = ha->fw_iocb_count;
+ }
+
+ req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
+ req->num_outstanding_cmds, GFP_KERNEL);
+
+ if (!req->outstanding_cmds) {
+ /*
+ * Try to allocate a minimal size just so we can get through
+ * initialization.
+ */
+ req->num_outstanding_cmds = MIN_OUTSTANDING_COMMANDS;
+ req->outstanding_cmds = kzalloc(sizeof(srb_t *) *
+ req->num_outstanding_cmds, GFP_KERNEL);
+
+ if (!req->outstanding_cmds) {
+ ql_log(ql_log_fatal, NULL, 0x0126,
+ "Failed to allocate memory for "
+ "outstanding_cmds for req_que %p.\n", req);
+ req->num_outstanding_cmds = 0;
+ return QLA_FUNCTION_FAILED;
+ }
+ }
+
+ return QLA_SUCCESS;
+}
+
/**
* qla2x00_setup_chip() - Load and start RISC firmware.
* @ha: HA context
@@ -1628,9 +1669,18 @@ enable_82xx_npiv:
MIN_MULTI_ID_FABRIC - 1;
}
qla2x00_get_resource_cnts(vha, NULL,
- &ha->fw_xcb_count, NULL, NULL,
+ &ha->fw_xcb_count, NULL, &ha->fw_iocb_count,
&ha->max_npiv_vports, NULL);
+ /*
+ * Allocate the array of outstanding commands
+ * now that we know the firmware resources.
+ */
+ rval = qla2x00_alloc_outstanding_cmds(ha,
+ vha->req);
+ if (rval != QLA_SUCCESS)
+ goto failed;
+
if (!fw_major_version && ql2xallocfwdump
&& !IS_QLA82XX(ha))
qla2x00_alloc_fw_dump(vha);
@@ -1948,7 +1998,7 @@ qla2x00_init_rings(scsi_qla_host_t *vha)
req = ha->req_q_map[que];
if (!req)
continue;
- for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
req->outstanding_cmds[cnt] = NULL;
req->current_outstanding_cmd = 1;
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index a481684..6055d96 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -349,14 +349,14 @@ qla2x00_start_scsi(srb_t *sp)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS)
+ if (index == req->num_outstanding_cmds)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
@@ -1467,16 +1467,15 @@ qla24xx_start_scsi(srb_t *sp)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS) {
+ if (index == req->num_outstanding_cmds)
goto queuing_error;
- }
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
@@ -1641,15 +1640,15 @@ qla24xx_dif_start_scsi(srb_t *sp)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS)
+ if (index == req->num_outstanding_cmds)
goto queuing_error;
/* Compute number of required data segments */
@@ -1822,14 +1821,14 @@ qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS) {
+ if (index == req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x700b,
"No room on outstanding cmd array.\n");
goto queuing_error;
@@ -2263,14 +2262,14 @@ qla82xx_start_scsi(srb_t *sp)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS)
+ if (index == req->num_outstanding_cmds)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
@@ -2767,15 +2766,15 @@ qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
- for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+ for (index = 1; index < req->num_outstanding_cmds; index++) {
handle++;
- if (handle == MAX_OUTSTANDING_COMMANDS)
+ if (handle == req->num_outstanding_cmds)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
- if (index == MAX_OUTSTANDING_COMMANDS) {
+ if (index == req->num_outstanding_cmds) {
rval = EXT_STATUS_BUSY;
goto queuing_error;
}
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 873c820..4513073 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1029,7 +1029,7 @@ qla2x00_process_completed_request(struct scsi_qla_host *vha,
struct qla_hw_data *ha = vha->hw;
/* Validate handle. */
- if (index >= MAX_OUTSTANDING_COMMANDS) {
+ if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x3014,
"Invalid SCSI command index (%x).\n", index);
@@ -1067,7 +1067,7 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
uint16_t index;
index = LSW(pkt->handle);
- if (index >= MAX_OUTSTANDING_COMMANDS) {
+ if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x5031,
"Invalid command index (%x).\n", index);
if (IS_QLA82XX(ha))
@@ -1740,7 +1740,7 @@ qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
sts24 = (struct sts_entry_24xx *) pkt;
/* Validate handle. */
- if (index >= MAX_OUTSTANDING_COMMANDS) {
+ if (index >= req->num_outstanding_cmds) {
ql_log(ql_log_warn, vha, 0x70af,
"Invalid SCSI completion handle 0x%x.\n", index);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
@@ -1910,9 +1910,9 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
req = ha->req_q_map[que];
/* Validate handle. */
- if (handle < MAX_OUTSTANDING_COMMANDS) {
+ if (handle < req->num_outstanding_cmds)
sp = req->outstanding_cmds[handle];
- } else
+ else
sp = NULL;
if (sp == NULL) {
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 68c55ea..319b0f2 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -900,13 +900,13 @@ qla2x00_abort_command(srb_t *sp)
"Entered %s.\n", __func__);
spin_lock_irqsave(&ha->hardware_lock, flags);
- for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
+ for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
- if (handle == MAX_OUTSTANDING_COMMANDS) {
+ if (handle == req->num_outstanding_cmds) {
/* command not found */
return QLA_FUNCTION_FAILED;
}
@@ -2535,12 +2535,12 @@ qla24xx_abort_command(srb_t *sp)
"Entered %s.\n", __func__);
spin_lock_irqsave(&ha->hardware_lock, flags);
- for (handle = 1; handle < MAX_OUTSTANDING_COMMANDS; handle++) {
+ for (handle = 1; handle < req->num_outstanding_cmds; handle++) {
if (req->outstanding_cmds[handle] == sp)
break;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
- if (handle == MAX_OUTSTANDING_COMMANDS) {
+ if (handle == req->num_outstanding_cmds) {
/* Command not found. */
return QLA_FUNCTION_FAILED;
}
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 20fd974..95cb6e78 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -523,6 +523,7 @@ qla25xx_free_req_que(struct scsi_qla_host *vha, struct req_que *req)
clear_bit(que_id, ha->req_qid_map);
mutex_unlock(&ha->vport_lock);
}
+ kfree(req->outstanding_cmds);
kfree(req);
req = NULL;
}
@@ -649,6 +650,10 @@ qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
goto que_failed;
}
+ ret = qla2x00_alloc_outstanding_cmds(ha, req);
+ if (ret != QLA_SUCCESS)
+ goto que_failed;
+
mutex_lock(&ha->vport_lock);
que_id = find_first_zero_bit(ha->req_qid_map, ha->max_req_queues);
if (que_id >= ha->max_req_queues) {
@@ -685,7 +690,7 @@ qla25xx_create_req_que(struct qla_hw_data *ha, uint16_t options,
"options=0x%x.\n", req->options);
ql_dbg(ql_dbg_init, base_vha, 0x00dd,
"options=0x%x.\n", req->options);
- for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++)
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++)
req->outstanding_cmds[cnt] = NULL;
req->current_outstanding_cmd = 1;
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 3e3f593..042368b 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -3629,7 +3629,7 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
req = ha->req_q_map[que];
if (!req)
continue;
- for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
if (!sp->u.scmd.ctx ||
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3a1661c..15b4037 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -360,6 +360,9 @@ static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
(req->length + 1) * sizeof(request_t),
req->ring, req->dma);
+ if (req && req->outstanding_cmds)
+ kfree(req->outstanding_cmds);
+
kfree(req);
req = NULL;
}
@@ -1010,7 +1013,7 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
spin_lock_irqsave(&ha->hardware_lock, flags);
req = vha->req;
for (cnt = 1; status == QLA_SUCCESS &&
- cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
@@ -1337,7 +1340,9 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
req = ha->req_q_map[que];
if (!req)
continue;
- for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ if (!req->outstanding_cmds)
+ continue;
+ for (cnt = 1; cnt < req->num_outstanding_cmds; cnt++) {
sp = req->outstanding_cmds[cnt];
if (sp) {
req->outstanding_cmds[cnt] = NULL;
@@ -4733,7 +4738,7 @@ qla2x00_timer(scsi_qla_host_t *vha)
cpu_flags);
req = ha->req_q_map[0];
for (index = 1;
- index < MAX_OUTSTANDING_COMMANDS;
+ index < req->num_outstanding_cmds;
index++) {
fc_port_t *sfcp;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index dc98ec9..b57ef31 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1551,7 +1551,7 @@ static inline uint32_t qlt_make_handle(struct scsi_qla_host *vha)
/* always increment cmd handle */
do {
++h;
- if (h > MAX_OUTSTANDING_COMMANDS)
+ if (h > DEFAULT_OUTSTANDING_COMMANDS)
h = 1; /* 0 is QLA_TGT_NULL_HANDLE */
if (h == ha->tgt.current_handle) {
ql_dbg(ql_dbg_tgt, vha, 0xe04e,
@@ -2422,7 +2422,7 @@ static struct qla_tgt_cmd *qlt_ctio_to_cmd(struct scsi_qla_host *vha,
return NULL;
}
/* handle-1 is actually used */
- if (unlikely(handle > MAX_OUTSTANDING_COMMANDS)) {
+ if (unlikely(handle > DEFAULT_OUTSTANDING_COMMANDS)) {
ql_dbg(ql_dbg_tgt, vha, 0xe052,
"qla_target(%d): Wrong handle %x received\n",
vha->vp_idx, handle);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index bad7495..fc61d6a 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -60,8 +60,9 @@
* multi-complete should come to the tgt driver or be handled there by qla2xxx
*/
#define CTIO_COMPLETION_HANDLE_MARK BIT_29
-#if (CTIO_COMPLETION_HANDLE_MARK <= MAX_OUTSTANDING_COMMANDS)
-#error "CTIO_COMPLETION_HANDLE_MARK not larger than MAX_OUTSTANDING_COMMANDS"
+#if (CTIO_COMPLETION_HANDLE_MARK <= DEFAULT_OUTSTANDING_COMMANDS)
+#error "CTIO_COMPLETION_HANDLE_MARK not larger than "
+ "DEFAULT_OUTSTANDING_COMMANDS"
#endif
#define HANDLE_IS_CTIO_COMP(h) (h & CTIO_COMPLETION_HANDLE_MARK)
--
1.7.7
--
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