From: Quinn Tran <qutran@xxxxxxxxxxx>
dsd_list contain a list of dsd buffer resource allocated
during traffic time. It resides in the qla_hw_data location
where some of the code is not re-useable.
Move this list to qpair to allow reuse by either single queue
or multi queue adapter / code.
Cc: stable@xxxxxxxxxxxxxxx
Cc: Laurence Oberman <loberman@xxxxxxxxxx>
Signed-off-by: Quinn Tran <qutran@xxxxxxxxxxx>
Signed-off-by: Nilesh Javali <njavali@xxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_def.h | 11 +++++-----
drivers/scsi/qla2xxx/qla_init.c | 14 +++++++++++++
drivers/scsi/qla2xxx/qla_iocb.c | 20 +++++++++---------
drivers/scsi/qla2xxx/qla_os.c | 36 ++++++++++++++++-----------------
4 files changed, 47 insertions(+), 34 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index b5ec15bbce99..9ec39bcd41b5 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -3825,6 +3825,12 @@ struct qla_qpair {
uint16_t id; /* qp number used with FW */
uint16_t vp_idx; /* vport ID */
+
+ uint16_t dsd_inuse;
+ uint16_t dsd_avail;
+ struct list_head dsd_list;
+#define NUM_DSD_CHAIN 4096
+
mempool_t *srb_mempool;
struct pci_dev *pdev;
@@ -4752,11 +4758,6 @@ struct qla_hw_data {
struct fw_blob *hablob;
struct qla82xx_legacy_intr_set nx_legacy_intr;
- uint16_t gbl_dsd_inuse;
- uint16_t gbl_dsd_avail;
- struct list_head gbl_dsd_list;
-#define NUM_DSD_CHAIN 4096
-
uint8_t fw_type;
uint32_t file_prd_off; /* File firmware product offset */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index d4df07aaa0ab..82077edfda1f 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -9655,6 +9655,7 @@ struct qla_qpair *qla2xxx_create_qpair(struct scsi_qla_host *vha, int qos,
qpair->vp_idx = vp_idx;
qpair->fw_started = ha->flags.fw_started;
INIT_LIST_HEAD(&qpair->hints_list);
+ INIT_LIST_HEAD(&qpair->dsd_list);
qpair->chip_reset = ha->base_qpair->chip_reset;
qpair->enable_class_2 = ha->base_qpair->enable_class_2;
qpair->enable_explicit_conf =
@@ -9783,6 +9784,19 @@ int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
if (ret != QLA_SUCCESS)
goto fail;
+ if (!list_empty(&qpair->dsd_list)) {
+ struct dsd_dma *dsd_ptr, *tdsd_ptr;
+
+ /* clean up allocated prev pool */
+ list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
+ &qpair->dsd_list, list) {
+ dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
+ dsd_ptr->dsd_list_dma);
+ list_del(&dsd_ptr->list);
+ kfree(dsd_ptr);
+ }
+ }
+
mutex_lock(&ha->mq_lock);
ha->queue_pair_map[qpair->id] = NULL;
clear_bit(qpair->id, ha->qpair_qid_map);
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 42b9206046af..0caa64a7df26 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -636,14 +636,13 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
tot_dsds -= avail_dsds;
dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
- dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
- struct dsd_dma, list);
+ dsd_ptr = list_first_entry(&qpair->dsd_list, struct dsd_dma, list);
next_dsd = dsd_ptr->dsd_addr;
list_del(&dsd_ptr->list);
- ha->gbl_dsd_avail--;
+ qpair->dsd_avail--;
list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
ctx->dsd_use_cnt++;
- ha->gbl_dsd_inuse++;
+ qpair->dsd_inuse++;
if (first_iocb) {
first_iocb = 0;
@@ -3367,6 +3366,7 @@ qla82xx_start_scsi(srb_t *sp)
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
+ struct qla_qpair *qpair = sp->qpair;
/* Setup device pointers. */
reg = &ha->iobase->isp82;
@@ -3415,18 +3415,18 @@ qla82xx_start_scsi(srb_t *sp)
uint16_t i;
more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
- if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
+ if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) {
ql_dbg(ql_dbg_io, vha, 0x300d,
"Num of DSD list %d is than %d for cmd=%p.\n",
- more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
+ more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN,
cmd);
goto queuing_error;
}
- if (more_dsd_lists <= ha->gbl_dsd_avail)
+ if (more_dsd_lists <= qpair->dsd_avail)
goto sufficient_dsds;
else
- more_dsd_lists -= ha->gbl_dsd_avail;
+ more_dsd_lists -= qpair->dsd_avail;
for (i = 0; i < more_dsd_lists; i++) {
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
@@ -3446,8 +3446,8 @@ qla82xx_start_scsi(srb_t *sp)
"for cmd=%p.\n", cmd);
goto queuing_error;
}
- list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
- ha->gbl_dsd_avail++;
+ list_add_tail(&dsd_ptr->list, &qpair->dsd_list);
+ qpair->dsd_avail++;
}
sufficient_dsds:
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index b9f9d1bb2634..50db08265c51 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -433,6 +433,7 @@ static void qla_init_base_qpair(struct scsi_qla_host *vha, struct req_que *req,
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);
+ INIT_LIST_HEAD(&ha->base_qpair->dsd_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());
@@ -751,9 +752,9 @@ void qla2x00_sp_free_dma(srb_t *sp)
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;
+ list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
+ sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
+ sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
}
if (sp->flags & SRB_GOT_BUF)
@@ -837,9 +838,9 @@ void qla2xxx_qpair_sp_free_dma(srb_t *sp)
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;
+ list_splice(&ctx1->dsd_list, &sp->qpair->dsd_list);
+ sp->qpair->dsd_inuse -= ctx1->dsd_use_cnt;
+ sp->qpair->dsd_avail += ctx1->dsd_use_cnt;
sp->flags &= ~SRB_FCP_CMND_DMA_VALID;
}
@@ -4407,7 +4408,6 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
"sf_init_cb=%p.\n", ha->sf_init_cb);
}
- INIT_LIST_HEAD(&ha->gbl_dsd_list);
/* Get consistent memory allocated for Async Port-Database. */
if (!IS_FWI2_CAPABLE(ha)) {
@@ -4953,18 +4953,16 @@ qla2x00_mem_free(struct qla_hw_data *ha)
ha->gid_list = NULL;
ha->gid_list_dma = 0;
- if (IS_QLA82XX(ha)) {
- if (!list_empty(&ha->gbl_dsd_list)) {
- struct dsd_dma *dsd_ptr, *tdsd_ptr;
-
- /* clean up allocated prev pool */
- list_for_each_entry_safe(dsd_ptr,
- tdsd_ptr, &ha->gbl_dsd_list, list) {
- dma_pool_free(ha->dl_dma_pool,
- dsd_ptr->dsd_addr, dsd_ptr->dsd_list_dma);
- list_del(&dsd_ptr->list);
- kfree(dsd_ptr);
- }
+ if (!list_empty(&ha->base_qpair->dsd_list)) {
+ struct dsd_dma *dsd_ptr, *tdsd_ptr;
+
+ /* clean up allocated prev pool */
+ list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
+ &ha->base_qpair->dsd_list, list) {
+ dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
+ dsd_ptr->dsd_list_dma);
+ list_del(&dsd_ptr->list);
+ kfree(dsd_ptr);
}
}
