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

ionic: disable all queue napi contexts on timeout

Browse Source 
Some time ago we short-circuited the queue disables on a timeout
error in order to not have to wait on every queue when we already
know it will time out.  However, this meant that we're not
properly stopping all the interrupts and napi contexts.  This
changes queue disable to always call ionic_qcq_disable() and to
give it an argument to know when to not do the adminq request.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shannon Nelson 2020-10-01 09:22:43 -07:00 committed by David S. Miller
parent 7c737fc43c
commit ba6ab8aca2
1 changed files with 21 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
drivers/net/ethernet/pensando/ionic/ionic_lif.c
View File

@ -264,10 +264,11 @@ static int ionic_qcq_enable(struct ionic_qcq *qcq)
return ionic_adminq_post_wait(lif, &ctx);
}
static int ionic_qcq_disable(struct ionic_qcq *qcq)
static int ionic_qcq_disable(struct ionic_qcq *qcq, bool send_to_hw)
{
struct ionic_queue *q;
struct ionic_lif *lif;
int err = 0;
struct ionic_admin_ctx ctx = {
.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
@ -294,13 +295,17 @@ static int ionic_qcq_disable(struct ionic_qcq *qcq)
napi_disable(&qcq->napi);
}
if (send_to_hw) {
ctx.cmd.q_control.lif_index = cpu_to_le16(lif->index);
ctx.cmd.q_control.type = q->type;
ctx.cmd.q_control.index = cpu_to_le32(q->index);
dev_dbg(lif->ionic->dev, "q_disable.index %d q_disable.qtype %d\n",
ctx.cmd.q_control.index, ctx.cmd.q_control.type);
return ionic_adminq_post_wait(lif, &ctx);
err = ionic_adminq_post_wait(lif, &ctx);
}
return err;
}
static void ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq)
@ -1627,22 +1632,16 @@ static void ionic_lif_rss_deinit(struct ionic_lif *lif)
static void ionic_txrx_disable(struct ionic_lif *lif)
{
unsigned int i;
int err;
int err = 0;
if (lif->txqcqs) {
for (i = 0; i < lif->nxqs; i++) {
err = ionic_qcq_disable(lif->txqcqs[i]);
if (err == -ETIMEDOUT)
break;
}
for (i = 0; i < lif->nxqs; i++)
err = ionic_qcq_disable(lif->txqcqs[i], (err != -ETIMEDOUT));
}
if (lif->rxqcqs) {
for (i = 0; i < lif->nxqs; i++) {
err = ionic_qcq_disable(lif->rxqcqs[i]);
if (err == -ETIMEDOUT)
break;
}
for (i = 0; i < lif->nxqs; i++)
err = ionic_qcq_disable(lif->rxqcqs[i], (err != -ETIMEDOUT));
}
}
@ -1794,6 +1793,7 @@ err_out:
static int ionic_txrx_enable(struct ionic_lif *lif)
{
int derr = 0;
int i, err;
for (i = 0; i < lif->nxqs; i++) {
@ -1810,8 +1810,7 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
err = ionic_qcq_enable(lif->txqcqs[i]);
if (err) {
if (err != -ETIMEDOUT)
ionic_qcq_disable(lif->rxqcqs[i]);
derr = ionic_qcq_disable(lif->rxqcqs[i], (err != -ETIMEDOUT));
goto err_out;
}
}
@ -1820,12 +1819,8 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
err_out:
while (i--) {
err = ionic_qcq_disable(lif->txqcqs[i]);
if (err == -ETIMEDOUT)
break;
err = ionic_qcq_disable(lif->rxqcqs[i]);
if (err == -ETIMEDOUT)
break;
derr = ionic_qcq_disable(lif->txqcqs[i], (derr != -ETIMEDOUT));
derr = ionic_qcq_disable(lif->rxqcqs[i], (derr != -ETIMEDOUT));
}
return err;