linux-kernel - [net PATCH 1/2] octeontx2-af: fixed resource availability check

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Message-ID: <20230608114201.31112-2-naveenm@marvell.com>
Date:   Thu, 8 Jun 2023 17:12:00 +0530
From:   Naveen Mamindlapalli <naveenm@...vell.com>
To:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sgoutham@...vell.com>
CC:     Satha Rao <skoteshwar@...vell.com>,
        Naveen Mamindlapalli <naveenm@...vell.com>
Subject: [net PATCH 1/2] octeontx2-af: fixed resource availability check

From: Satha Rao <skoteshwar@...vell.com>

txschq_alloc response have two different arrays to store continuous
and non-continuous schedulers of each level. Requested count should
be checked for each array separately.

Fixes: 5d9b976d4480 ("octeontx2-af: Support fixed transmit scheduler topology")
Signed-off-by: Satha Rao <skoteshwar@...vell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@...vell.com>
Signed-off-by: Naveen Mamindlapalli <naveenm@...vell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
index 26e639e57dae..967370c0a649 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
@@ -1864,7 +1864,8 @@ static int nix_check_txschq_alloc_req(struct rvu *rvu, int lvl, u16 pcifunc,
 		free_cnt = rvu_rsrc_free_count(&txsch->schq);
 	}
 
-	if (free_cnt < req_schq || req_schq > MAX_TXSCHQ_PER_FUNC)
+	if (free_cnt < req_schq || req->schq[lvl] > MAX_TXSCHQ_PER_FUNC ||
+	    req->schq_contig[lvl] > MAX_TXSCHQ_PER_FUNC)
 		return NIX_AF_ERR_TLX_ALLOC_FAIL;
 
 	/* If contiguous queues are needed, check for availability */
-- 
2.39.0.198.ga38d39a4c5