This is a note to let you know that I've just added the patch titled
octeontx2-pf: Fix PFC TX scheduler free
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
octeontx2-pf-fix-pfc-tx-scheduler-free.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a1f2795d0d72684fafd03269928ca736d793a829
Author: Suman Ghosh <sumang@xxxxxxxxxxx>
Date: Thu Aug 24 13:40:30 2023 +0530
octeontx2-pf: Fix PFC TX scheduler free
[ Upstream commit a9ac2e18779597f280d68a5b5f5bdd51a34080fa ]
During PFC TX schedulers free, flag TXSCHQ_FREE_ALL was being set
which caused free up all schedulers other than the PFC schedulers.
This patch fixes that to free only the PFC Tx schedulers.
Fixes: 99c969a83d82 ("octeontx2-pf: Add egress PFC support")
Signed-off-by: Suman Ghosh <sumang@xxxxxxxxxxx>
Reviewed-by: Simon Horman <horms@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230824081032.436432-2-sumang@xxxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 3e1c70c746227..b9712040a0bc2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -804,6 +804,7 @@ void otx2_txschq_free_one(struct otx2_nic *pfvf, u16 lvl, u16 schq)
mutex_unlock(&pfvf->mbox.lock);
}
+EXPORT_SYMBOL(otx2_txschq_free_one);
void otx2_txschq_stop(struct otx2_nic *pfvf)
{
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
index ccaf97bb1ce03..6492749dd7c89 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_dcbnl.c
@@ -125,19 +125,12 @@ int otx2_pfc_txschq_alloc(struct otx2_nic *pfvf)
static int otx2_pfc_txschq_stop_one(struct otx2_nic *pfvf, u8 prio)
{
- struct nix_txsch_free_req *free_req;
+ int lvl;
- mutex_lock(&pfvf->mbox.lock);
/* free PFC TLx nodes */
- free_req = otx2_mbox_alloc_msg_nix_txsch_free(&pfvf->mbox);
- if (!free_req) {
- mutex_unlock(&pfvf->mbox.lock);
- return -ENOMEM;
- }
-
- free_req->flags = TXSCHQ_FREE_ALL;
- otx2_sync_mbox_msg(&pfvf->mbox);
- mutex_unlock(&pfvf->mbox.lock);
+ for (lvl = 0; lvl < pfvf->hw.txschq_link_cfg_lvl; lvl++)
+ otx2_txschq_free_one(pfvf, lvl,
+ pfvf->pfc_schq_list[lvl][prio]);
pfvf->pfc_alloc_status[prio] = false;
return 0;
