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octeontx2-af: Fix SDP MAC link credits configuration

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Current driver allows only packet size < 512B as SDP_LINK_CREDIT
register is set to default value.
This patch fixes this issue by configure the register with
maximum HW supported value to allow packet size > 512B.

Fixes: 2f7f33a095 ("octeontx2-pf: Add representors for sdp MAC")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Geetha sowjanya 2024-11-26 17:14:31 +05:30 committed by David S. Miller
parent a747e02430
commit 28866d6e84
2 changed files with 4 additions and 0 deletions
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1
drivers/net/ethernet/marvell/octeontx2/af/common.h
View File

@ -159,6 +159,7 @@ enum nix_scheduler {
#define SDP_HW_MIN_FRS 16
#define CN10K_LMAC_LINK_MAX_FRS 16380 /* 16k - FCS */
#define CN10K_LBK_LINK_MAX_FRS 65535 /* 64k */
#define SDP_LINK_CREDIT 0x320202
/* NIX RX action operation*/
#define NIX_RX_ACTIONOP_DROP (0x0ull)

3
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
View File

@ -4672,6 +4672,9 @@ static void nix_link_config(struct rvu *rvu, int blkaddr,
rvu_get_lbk_link_max_frs(rvu, &lbk_max_frs);
rvu_get_lmac_link_max_frs(rvu, &lmac_max_frs);
/* Set SDP link credit */
rvu_write64(rvu, blkaddr, NIX_AF_SDP_LINK_CREDIT, SDP_LINK_CREDIT);
/* Set default min/max packet lengths allowed on NIX Rx links.
*
* With HW reset minlen value of 60byte, HW will treat ARP pkts