From b58f5a9c7034e02c391f4ae70fc62c927ce8f04f Mon Sep 17 00:00:00 2001 From: Vikas Gupta Date: Tue, 9 Apr 2024 14:54:27 -0700 Subject: [PATCH] bnxt_en: Remove unneeded MSIX base structure fields and code Ever since commit: 303432211324 ("bnxt_en: Remove runtime interrupt vector allocation") The MSIX base vector is effectively always 0. Remove all unneeded structure fields and code referencing the MSIX base. Reviewed-by: Somnath Kotur Reviewed-by: Andy Gospodarek Signed-off-by: Vikas Gupta Signed-off-by: Michael Chan Reviewed-by: Jacob Keller Link: https://lore.kernel.org/r/20240409215431.41424-4-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 31 +++---------------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 20 +++--------- drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h | 2 -- 3 files changed, 8 insertions(+), 45 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 795f3f957eb5..8213a37cba3e 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3905,13 +3905,12 @@ static int bnxt_alloc_cp_sub_ring(struct bnxt *bp, static int bnxt_alloc_cp_rings(struct bnxt *bp) { bool sh = !!(bp->flags & BNXT_FLAG_SHARED_RINGS); - int i, j, rc, ulp_base_vec, ulp_msix; + int i, j, rc, ulp_msix; int tcs = bp->num_tc; if (!tcs) tcs = 1; ulp_msix = bnxt_get_ulp_msix_num(bp); - ulp_base_vec = bnxt_get_ulp_msix_base(bp); for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { struct bnxt_napi *bnapi = bp->bnapi[i]; struct bnxt_cp_ring_info *cpr, *cpr2; @@ -3930,10 +3929,7 @@ static int bnxt_alloc_cp_rings(struct bnxt *bp) if (rc) return rc; - if (ulp_msix && i >= ulp_base_vec) - ring->map_idx = i + ulp_msix; - else - ring->map_idx = i; + ring->map_idx = ulp_msix + i; if (!(bp->flags & BNXT_FLAG_CHIP_P5_PLUS)) continue; @@ -7347,17 +7343,7 @@ static int bnxt_hwrm_reserve_rings(struct bnxt *bp, struct bnxt_hw_rings *hwr) int bnxt_nq_rings_in_use(struct bnxt *bp) { - int cp = bp->cp_nr_rings; - int ulp_msix, ulp_base; - - ulp_msix = bnxt_get_ulp_msix_num(bp); - if (ulp_msix) { - ulp_base = bnxt_get_ulp_msix_base(bp); - cp += ulp_msix; - if ((ulp_base + ulp_msix) > cp) - cp = ulp_base + ulp_msix; - } - return cp; + return bp->cp_nr_rings + bnxt_get_ulp_msix_num(bp); } static int bnxt_cp_rings_in_use(struct bnxt *bp) @@ -7373,16 +7359,7 @@ static int bnxt_cp_rings_in_use(struct bnxt *bp) static int bnxt_get_func_stat_ctxs(struct bnxt *bp) { - int ulp_stat = bnxt_get_ulp_stat_ctxs(bp); - int cp = bp->cp_nr_rings; - - if (!ulp_stat) - return cp; - - if (bnxt_nq_rings_in_use(bp) > cp + bnxt_get_ulp_msix_num(bp)) - return bnxt_get_ulp_msix_base(bp) + ulp_stat; - - return cp + ulp_stat; + return bp->cp_nr_rings + bnxt_get_ulp_stat_ctxs(bp); } static int bnxt_get_total_rss_ctxs(struct bnxt *bp, struct bnxt_hw_rings *hwr) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c index fd890819d4bc..cae88747b110 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c @@ -31,21 +31,20 @@ static DEFINE_IDA(bnxt_aux_dev_ids); static void bnxt_fill_msix_vecs(struct bnxt *bp, struct bnxt_msix_entry *ent) { struct bnxt_en_dev *edev = bp->edev; - int num_msix, idx, i; + int num_msix, i; if (!edev->ulp_tbl->msix_requested) { netdev_warn(bp->dev, "Requested MSI-X vectors insufficient\n"); return; } num_msix = edev->ulp_tbl->msix_requested; - idx = edev->ulp_tbl->msix_base; for (i = 0; i < num_msix; i++) { - ent[i].vector = bp->irq_tbl[idx + i].vector; - ent[i].ring_idx = idx + i; + ent[i].vector = bp->irq_tbl[i].vector; + ent[i].ring_idx = i; if (bp->flags & BNXT_FLAG_CHIP_P5_PLUS) ent[i].db_offset = bp->db_offset; else - ent[i].db_offset = (idx + i) * 0x80; + ent[i].db_offset = i * 0x80; } } @@ -111,17 +110,6 @@ int bnxt_get_ulp_msix_num(struct bnxt *bp) min_t(u32, roce_msix, num_online_cpus()) : 0); } -int bnxt_get_ulp_msix_base(struct bnxt *bp) -{ - if (bnxt_ulp_registered(bp->edev)) { - struct bnxt_en_dev *edev = bp->edev; - - if (edev->ulp_tbl->msix_requested) - return edev->ulp_tbl->msix_base; - } - return 0; -} - int bnxt_get_ulp_stat_ctxs(struct bnxt *bp) { if (bnxt_ulp_registered(bp->edev)) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h index b9e73de14b57..f8df4095399f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h @@ -46,7 +46,6 @@ struct bnxt_ulp { unsigned long *async_events_bmap; u16 max_async_event_id; u16 msix_requested; - u16 msix_base; atomic_t ref_count; }; @@ -96,7 +95,6 @@ static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev) } int bnxt_get_ulp_msix_num(struct bnxt *bp); -int bnxt_get_ulp_msix_base(struct bnxt *bp); int bnxt_get_ulp_stat_ctxs(struct bnxt *bp); void bnxt_ulp_stop(struct bnxt *bp); void bnxt_ulp_start(struct bnxt *bp, int err);