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octeontx2-af: Increase link credit restore polling timeout

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[ Upstream commit 1581d61b42d985cefe7b71eea67ab3bfcbf34d0f ]

It's been observed that sometimes link credit restore takes
a lot of time than the current timeout. This patch increases
the default timeout value and return the proper error value
on failure.

Fixes: 1c74b89171c3 ("octeontx2-af: Wait for TX link idle for credits change")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geetha sowjanya 2022-01-21 12:04:44 +05:30 committed by Greg Kroah-Hartman
parent f13bf41cbe
commit 35dd0b7e5a
2 changed files with 3 additions and 2 deletions
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1
drivers/net/ethernet/marvell/octeontx2/af/mbox.h
View File

@ -700,6 +700,7 @@ enum nix_af_status {
NIX_AF_ERR_BANDPROF_INVAL_REQ = -428,
NIX_AF_ERR_CQ_CTX_WRITE_ERR = -429,
NIX_AF_ERR_AQ_CTX_RETRY_WRITE = -430,
NIX_AF_ERR_LINK_CREDITS = -431,
};
/* For NIX RX vtag action */

4
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
View File

@ -3891,8 +3891,8 @@ nix_config_link_credits(struct rvu *rvu, int blkaddr, int link,
NIX_AF_TL1X_SW_XOFF(schq), BIT_ULL(0));
}
rc = -EBUSY;
poll_tmo = jiffies + usecs_to_jiffies(10000);
rc = NIX_AF_ERR_LINK_CREDITS;
poll_tmo = jiffies + usecs_to_jiffies(200000);
/* Wait for credits to return */
do {
if (time_after(jiffies, poll_tmo))