leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

qedf: Use hwfns and affin_hwfn_idx to get MSI-X vector index to use

Browse Source 
MSI-X vector index is determined using qed device information and
affinity to use.

Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chad Dupuis 2019-05-26 15:22:30 +03:00 committed by David S. Miller
parent 2bfbc57058
commit a9b02c615b
1 changed files with 28 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/scsi/qedf/qedf_main.c
View File

@ -2218,16 +2218,21 @@ static void qedf_simd_int_handler(void *cookie)
static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
{
int i;
u16 vector_idx = 0;
u32 vector;
if (qedf->int_info.msix_cnt) {
for (i = 0; i < qedf->int_info.used_cnt; i++) {
synchronize_irq(qedf->int_info.msix[i].vector);
irq_set_affinity_hint(qedf->int_info.msix[i].vector,
NULL);
irq_set_affinity_notifier(qedf->int_info.msix[i].vector,
NULL);
free_irq(qedf->int_info.msix[i].vector,
&qedf->fp_array[i]);
vector_idx = i * qedf->dev_info.common.num_hwfns +
qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
"Freeing IRQ #%d vector_idx=%d.\n",
i, vector_idx);
vector = qedf->int_info.msix[vector_idx].vector;
synchronize_irq(vector);
irq_set_affinity_hint(vector, NULL);
irq_set_affinity_notifier(vector, NULL);
free_irq(vector, &qedf->fp_array[i]);
}
} else
qed_ops->common->simd_handler_clean(qedf->cdev,
@ -2240,11 +2245,19 @@ static void qedf_sync_free_irqs(struct qedf_ctx *qedf)
static int qedf_request_msix_irq(struct qedf_ctx *qedf)
{
int i, rc, cpu;
u16 vector_idx = 0;
u32 vector;
cpu = cpumask_first(cpu_online_mask);
for (i = 0; i < qedf->num_queues; i++) {
rc = request_irq(qedf->int_info.msix[i].vector,
qedf_msix_handler, 0, "qedf", &qedf->fp_array[i]);
vector_idx = i * qedf->dev_info.common.num_hwfns +
qed_ops->common->get_affin_hwfn_idx(qedf->cdev);
QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
"Requesting IRQ #%d vector_idx=%d.\n",
i, vector_idx);
vector = qedf->int_info.msix[vector_idx].vector;
rc = request_irq(vector, qedf_msix_handler, 0, "qedf",
&qedf->fp_array[i]);
if (rc) {
QEDF_WARN(&(qedf->dbg_ctx), "request_irq failed.\n");
@ -2253,8 +2266,7 @@ static int qedf_request_msix_irq(struct qedf_ctx *qedf)
}
qedf->int_info.used_cnt++;
rc = irq_set_affinity_hint(qedf->int_info.msix[i].vector,
get_cpu_mask(cpu));
rc = irq_set_affinity_hint(vector, get_cpu_mask(cpu));
cpu = cpumask_next(cpu, cpu_online_mask);
}
@ -3211,6 +3223,11 @@ static int __qedf_probe(struct pci_dev *pdev, int mode)
goto err1;
}
QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC,
"dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n",
qedf->dev_info.common.num_hwfns,
qed_ops->common->get_affin_hwfn_idx(qedf->cdev));
/* queue allocation code should come here
* order should be
* slowpath_start