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octeontx2-af: fix lbk link credits on cn10k

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Fix LBK link credits on CN10K to be same as CN9K i.e
16 * MAX_LBK_DATA_RATE instead of current scheme of
calculation based on LBK buf length / FIFO size.

Fixes: 6e54e1c539 ("octeontx2-af: cn10K: Add MTU configuration")
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nithin Dabilpuram 2023-06-08 17:12:01 +05:30 committed by David S. Miller
parent 4e635f9d86
commit 87e12a17ee
1 changed files with 0 additions and 4 deletions
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4
drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c
View file

@ -4081,10 +4081,6 @@ int rvu_mbox_handler_nix_set_rx_cfg(struct rvu *rvu, struct nix_rx_cfg *req,
static u64 rvu_get_lbk_link_credits(struct rvu *rvu, u16 lbk_max_frs)
{
/* CN10k supports 72KB FIFO size and max packet size of 64k */
if (rvu->hw->lbk_bufsize == 0x12000)
return (rvu->hw->lbk_bufsize - lbk_max_frs) / 16;
return 1600; /* 16 * max LBK datarate = 16 * 100Gbps */
}