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From: Jakub Kicinski <kuba@kernel.org>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com,
	ecree.xilinx@gmail.com, michael.chan@broadcom.com,
	Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH net-next 11/11] eth: bnxt: pad out the correct indirection table
Date: Tue,  2 Jul 2024 16:47:57 -0700	[thread overview]
Message-ID: <20240702234757.4188344-13-kuba@kernel.org> (raw)
In-Reply-To: <20240702234757.4188344-1-kuba@kernel.org>

bnxt allocates tables of max size, and changes the used size
based on number of active rings. The unused entries get padded
out with zeros. bnxt_modify_rss() seems to always pad out
the table of the main / default RSS context, instead of
the table of the modified context.

I haven't observed any behavior change due to this patch,
so I don't think it's a fix. Not entirely sure what role
the padding plays, 0 is a valid queue ID.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 13e9b3b26f09..1d587846c394 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1858,7 +1858,7 @@ static void bnxt_modify_rss(struct bnxt *bp, struct ethtool_rxfh_context *ctx,
 			indir_tbl[i] = rxfh->indir[i];
 		pad = bp->rss_indir_tbl_entries - tbl_size;
 		if (pad)
-			memset(&bp->rss_indir_tbl[i], 0, pad * sizeof(u32));
+			memset(&indir_tbl[i], 0, pad * sizeof(u32));
 	}
 }
 
-- 
2.45.2


      parent reply	other threads:[~2024-07-02 23:48 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-02 23:47 [PATCH net-next 00/11] eth: bnxt: use the new RSS API Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 01/11] net: ethtool: let drivers remove lost RSS contexts Jakub Kicinski
2024-07-03 11:08   ` Edward Cree
2024-07-03 13:43     ` Jakub Kicinski
2024-07-03 14:15       ` Edward Cree
2024-07-02 23:47 ` [PATCH net-next 02/11] net: ethtool: let driver declare max size of RSS indir table and key Jakub Kicinski
2024-07-04  7:34   ` Simon Horman
2024-07-02 23:47 ` [PATCH net-next 02/11] net: ethtool: let drivers " Jakub Kicinski
2024-07-03 11:16   ` Edward Cree
2024-07-02 23:47 ` [PATCH net-next 03/11] eth: bnxt: allow deleting RSS contexts when the device is down Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 04/11] eth: bnxt: move from .set_rxfh to .create_rxfh_context and friends Jakub Kicinski
2024-07-03 12:06   ` Edward Cree
2024-07-03 12:49     ` Pavan Chebbi
2024-07-03 13:46       ` Jakub Kicinski
2024-07-04  6:19   ` kernel test robot
2024-07-05  0:34   ` kernel test robot
2024-07-02 23:47 ` [PATCH net-next 05/11] eth: bnxt: remove rss_ctx_bmap Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 06/11] eth: bnxt: depend on core cleaning up RSS contexts Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 07/11] eth: bnxt: use context priv for struct bnxt_rss_ctx Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 08/11] eth: bnxt: use the RSS context XArray instead of the local list Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 09/11] eth: bnxt: bump the entry size in indir tables to u32 Jakub Kicinski
2024-07-03 10:51   ` Przemek Kitszel
2024-07-03 13:49     ` Jakub Kicinski
2024-07-03 14:02       ` Przemek Kitszel
2024-07-03 16:02         ` Jakub Kicinski
2024-07-02 23:47 ` [PATCH net-next 10/11] eth: bnxt: use the indir table from ethtool context Jakub Kicinski
2024-07-03 11:08   ` Przemek Kitszel
2024-07-03 11:39   ` Edward Cree
2024-07-03 13:51     ` Jakub Kicinski
2024-07-02 23:47 ` Jakub Kicinski [this message]

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