From 5a2f3aa2896f8162cf8349d525e97ce09cd712f5 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sat, 7 Feb 2026 15:51:17 -0800 Subject: [PATCH] bnxt_en: Refactor bnxt_need_reserve_rings() bnxt_need_reserve_rings() checks 6 ring resources against the reserved values to determine if a new reservation is needed. Factor out the code to collect the total resources into a new helper function bnxt_get_total_resources() to make the code cleaner and easier to read. Instead of individual scalar variables, use the struct bnxt_hw_rings to hold all the ring resources. Using the struct, hwr.cp replaces the nq variable and the chip specific hwr.cp_p5 replaces cp on newer chips. There is no change in behavior. This will make it easier to check the RSS context resource in the next patch. Reviewed-by: Andy Gospodarek Signed-off-by: Michael Chan Reviewed-by: Joe Damato Link: https://patch.msgid.link/20260207235118.1987301-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 45 +++++++++++++++-------- 1 file changed, 30 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 72a8ca76c1e23..98a1cbcc122e5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -7951,13 +7951,27 @@ static int bnxt_get_total_vnics(struct bnxt *bp, int rx_rings) return 1; } +static void bnxt_get_total_resources(struct bnxt *bp, struct bnxt_hw_rings *hwr) +{ + hwr->cp = bnxt_nq_rings_in_use(bp); + hwr->cp_p5 = 0; + if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) + hwr->cp_p5 = bnxt_cp_rings_in_use(bp); + hwr->tx = bp->tx_nr_rings; + hwr->rx = bp->rx_nr_rings; + hwr->grp = hwr->rx; + hwr->vnic = bnxt_get_total_vnics(bp, hwr->rx); + if (bp->flags & BNXT_FLAG_AGG_RINGS) + hwr->rx <<= 1; + hwr->stat = bnxt_get_func_stat_ctxs(bp); +} + static bool bnxt_need_reserve_rings(struct bnxt *bp) { struct bnxt_hw_resc *hw_resc = &bp->hw_resc; - int cp = bnxt_cp_rings_in_use(bp); - int nq = bnxt_nq_rings_in_use(bp); - int rx = bp->rx_nr_rings, stat; - int vnic, grp = rx; + struct bnxt_hw_rings hwr; + + bnxt_get_total_resources(bp, &hwr); /* Old firmware does not need RX ring reservations but we still * need to setup a default RSS map when needed. With new firmware @@ -7967,25 +7981,26 @@ static bool bnxt_need_reserve_rings(struct bnxt *bp) if (!BNXT_NEW_RM(bp)) bnxt_check_rss_tbl_no_rmgr(bp); - if (hw_resc->resv_tx_rings != bp->tx_nr_rings && - bp->hwrm_spec_code >= 0x10601) + if (hw_resc->resv_tx_rings != hwr.tx && bp->hwrm_spec_code >= 0x10601) return true; if (!BNXT_NEW_RM(bp)) return false; - vnic = bnxt_get_total_vnics(bp, rx); - - if (bp->flags & BNXT_FLAG_AGG_RINGS) - rx <<= 1; - stat = bnxt_get_func_stat_ctxs(bp); - if (hw_resc->resv_rx_rings != rx || hw_resc->resv_cp_rings != cp || - hw_resc->resv_vnics != vnic || hw_resc->resv_stat_ctxs != stat || - (hw_resc->resv_hw_ring_grps != grp && + if (hw_resc->resv_rx_rings != hwr.rx || + hw_resc->resv_vnics != hwr.vnic || + hw_resc->resv_stat_ctxs != hwr.stat || + (hw_resc->resv_hw_ring_grps != hwr.grp && !(bp->flags & BNXT_FLAG_CHIP_P5_PLUS))) return true; + if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) { + if (hw_resc->resv_cp_rings != hwr.cp_p5) + return true; + } else if (hw_resc->resv_cp_rings != hwr.cp) { + return true; + } if ((bp->flags & BNXT_FLAG_CHIP_P5_PLUS) && BNXT_PF(bp) && - hw_resc->resv_irqs != nq) + hw_resc->resv_irqs != hwr.cp) return true; return false; } -- 2.47.3