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bnxt_en: enable interrupt sampling on 5750X for DIM 

5750X (P5) chips handle receiving packets on the NQ rather than the main
completion queue so we need to get and set stats from the correct spots
for dynamic interrupt moderation.

Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Gospodarek 2021-12-27 03:00:28 -05:00 committed by David S. Miller
parent 0fb8582ae5
commit dc1f5d1ebc
1 changed files with 13 additions and 1 deletions
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14
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -2632,6 +2632,7 @@ static int bnxt_poll_p5(struct napi_struct *napi, int budget)
{
struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi);
struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
struct bnxt_cp_ring_info *cpr_rx;
u32 raw_cons = cpr->cp_raw_cons;
struct bnxt *bp = bnapi->bp;
struct nqe_cn *nqcmp;
@ -2659,7 +2660,7 @@ static int bnxt_poll_p5(struct napi_struct *napi, int budget)
if (napi_complete_done(napi, work_done))
BNXT_DB_NQ_ARM_P5(&cpr->cp_db,
cpr->cp_raw_cons);
return work_done;
goto poll_done;
}
/* The valid test of the entry must be done first before
@ -2685,6 +2686,17 @@ static int bnxt_poll_p5(struct napi_struct *napi, int budget)
cpr->cp_raw_cons = raw_cons;
BNXT_DB_NQ_P5(&cpr->cp_db, raw_cons);
}
poll_done:
cpr_rx = cpr->cp_ring_arr[BNXT_RX_HDL];
if (cpr_rx && (bp->flags & BNXT_FLAG_DIM)) {
struct dim_sample dim_sample = {};
dim_update_sample(cpr->event_ctr,
cpr_rx->rx_packets,
cpr_rx->rx_bytes,
&dim_sample);
net_dim(&cpr->dim, dim_sample);
}
return work_done;
}