[PATCH net-next 3/7] bnxt_en: enable interrupt sampling on 5750X for DIM
flat view
STALE1746d
From: Michael Chan <michael.chan@broadcom.com>
Date: 2021-12-27 08:00:57
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 13 in this series.
Revisions (13)
From: Andy Gospodarek <redacted> 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 <redacted> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 53101d00768c..11df2fc05f6a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c@@ -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; }
--
2.18.1
Attachments
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