linux-kernel - [PATCH net-next RESEND] octeontx2-af: Increase maximum BPID channels

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Date: Tue, 26 Mar 2024 11:45:14 -0700
From: Radha Mohan Chintakuntla <radhac@...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>,
        <lcherian@...vell.com>, <gakula@...vell.com>, <hkelam@...vell.com>,
        <jerinj@...vell.com>, <sbhatta@...vell.com>, <horms@...nel.org>
CC: Radha Mohan Chintakuntla <radhac@...vell.com>
Subject: [PATCH net-next RESEND] octeontx2-af: Increase maximum BPID channels

Any NIX interface type can have maximum 256 channels. So increased the
backpressure ID count to 256 so that it can cover cn9k and cn10k SoCs that
have different NIX interface types with varied maximum channels.

Signed-off-by: Radha Mohan Chintakuntla <radhac@...vell.com>
---
Note: Earlier version didn't have 'net-next' designation in subject. No
other changes.

 drivers/net/ethernet/marvell/octeontx2/af/mbox.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index eb2a20b5a0d0..3d801a1a4f70 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -1213,10 +1213,8 @@ struct nix_bp_cfg_req {
 	/* bpid_per_chan = 1 assigns separate bp id for each channel */
 };
 
-/* PF can be mapped to either CGX or LBK interface,
- * so maximum 64 channels are possible.
- */
-#define NIX_MAX_BPID_CHAN	64
+/* Maximum channels any single NIX interface can have */
+#define NIX_MAX_BPID_CHAN	256
 struct nix_bp_cfg_rsp {
 	struct mbox_msghdr hdr;
 	u16	chan_bpid[NIX_MAX_BPID_CHAN]; /* Channel and bpid mapping */
-- 
2.34.1