From ac3158cb01084aa654222f1ad970b6c1af3cef98 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 4 May 2020 04:50:28 -0400 Subject: [PATCH] bnxt_en: Allocate TQM ring context memory according to fw specification. Newer firmware spec. will specify the number of TQM rings to allocate context memory for. Use the firmware specified value and fall back to the old value derived from bp->max_q if it is not available. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 30 +++++++++++++++++------------- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index fead64f1ad90..32a208397b68 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6434,23 +6434,13 @@ static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) if (!rc) { struct bnxt_ctx_pg_info *ctx_pg; struct bnxt_ctx_mem_info *ctx; - int i; + int i, tqm_rings; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) { rc = -ENOMEM; goto ctx_err; } - ctx_pg = kzalloc(sizeof(*ctx_pg) * (bp->max_q + 1), GFP_KERNEL); - if (!ctx_pg) { - kfree(ctx); - rc = -ENOMEM; - goto ctx_err; - } - for (i = 0; i < bp->max_q + 1; i++, ctx_pg++) - ctx->tqm_mem[i] = ctx_pg; - - bp->ctx = ctx; ctx->qp_max_entries = le32_to_cpu(resp->qp_max_entries); ctx->qp_min_qp1_entries = le16_to_cpu(resp->qp_min_qp1_entries); ctx->qp_max_l2_entries = le16_to_cpu(resp->qp_max_l2_entries); @@ -6483,6 +6473,20 @@ static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) ctx->tim_entry_size = le16_to_cpu(resp->tim_entry_size); ctx->tim_max_entries = le32_to_cpu(resp->tim_max_entries); ctx->ctx_kind_initializer = resp->ctx_kind_initializer; + ctx->tqm_fp_rings_count = resp->tqm_fp_rings_count; + if (!ctx->tqm_fp_rings_count) + ctx->tqm_fp_rings_count = bp->max_q; + + tqm_rings = ctx->tqm_fp_rings_count + 1; + ctx_pg = kcalloc(tqm_rings, sizeof(*ctx_pg), GFP_KERNEL); + if (!ctx_pg) { + kfree(ctx); + rc = -ENOMEM; + goto ctx_err; + } + for (i = 0; i < tqm_rings; i++, ctx_pg++) + ctx->tqm_mem[i] = ctx_pg; + bp->ctx = ctx; } else { rc = 0; } @@ -6735,7 +6739,7 @@ static void bnxt_free_ctx_mem(struct bnxt *bp) return; if (ctx->tqm_mem[0]) { - for (i = 0; i < bp->max_q + 1; i++) + for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) bnxt_free_ctx_pg_tbls(bp, ctx->tqm_mem[i]); kfree(ctx->tqm_mem[0]); ctx->tqm_mem[0] = NULL; @@ -6849,7 +6853,7 @@ skip_rdma: entries = roundup(entries, ctx->tqm_entries_multiple); entries = clamp_t(u32, entries, ctx->tqm_min_entries_per_ring, ctx->tqm_max_entries_per_ring); - for (i = 0; i < bp->max_q + 1; i++) { + for (i = 0; i < ctx->tqm_fp_rings_count + 1; i++) { ctx_pg = ctx->tqm_mem[i]; ctx_pg->entries = entries; mem_size = ctx->tqm_entry_size * entries; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index f2caa2756f5b..1dbc3aece7a6 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1357,6 +1357,7 @@ struct bnxt_ctx_mem_info { u16 mrav_num_entries_units; u8 tqm_entries_multiple; u8 ctx_kind_initializer; + u8 tqm_fp_rings_count; u32 flags; #define BNXT_CTX_FLAG_INITED 0x01 -- 2.11.0