github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-27 00:22:00 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

octeontx2-pf: QOS: Perform cache sync on send queue teardown

Browse Source 
QOS is designed to create a new send queue whenever  a class
is created, ensuring proper shaping and scheduling. However,
when multiple send queues are created and deleted in a loop,
SMMU errors are observed.

This patch addresses the issue by performing an data cache sync
during the teardown of QOS send queues.

Fixes: ab6dddd2a6 ("octeontx2-pf: qos send queues management")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250522094742.1498295-1-hkelam@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Hariprasad Kelam 2025-05-22 15:17:41 +05:30 committed by Paolo Abeni
parent 846992645b
commit 479c580160
1 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/net/ethernet/marvell/octeontx2/nic/qos_sq.c
View File

@ -256,6 +256,26 @@ int otx2_qos_enable_sq(struct otx2_nic *pfvf, int qidx)
return err;
}
static int otx2_qos_nix_npa_ndc_sync(struct otx2_nic *pfvf)
{
struct ndc_sync_op *req;
int rc;
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_ndc_sync_op(&pfvf->mbox);
if (!req) {
mutex_unlock(&pfvf->mbox.lock);
return -ENOMEM;
}
req->nix_lf_tx_sync = true;
req->npa_lf_sync = true;
rc = otx2_sync_mbox_msg(&pfvf->mbox);
mutex_unlock(&pfvf->mbox.lock);
return rc;
}
void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx)
{
struct otx2_qset *qset = &pfvf->qset;
@ -285,6 +305,8 @@ void otx2_qos_disable_sq(struct otx2_nic *pfvf, int qidx)
otx2_qos_sqb_flush(pfvf, sq_idx);
otx2_smq_flush(pfvf, otx2_get_smq_idx(pfvf, sq_idx));
/* NIX/NPA NDC sync */
otx2_qos_nix_npa_ndc_sync(pfvf);
otx2_cleanup_tx_cqes(pfvf, cq);
mutex_lock(&pfvf->mbox.lock);