From 3be8136ce14ea12c7b40f7ad20a5ff8aec339289 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Sat, 23 Nov 2019 22:30:44 -0500 Subject: bnxt_en: Initialize context memory to the value specified by firmware. Some chips that need host context memory as a backing store requires the memory to be initialized to a non-zero value. Query the value from firmware and initialize the context memory accordingly. Signed-off-by: Michael Chan Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 26 +++++++++++++++++--------- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 2 ++ 2 files changed, 19 insertions(+), 9 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6a12ab5b8830..0e384c578aa0 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -2688,6 +2688,9 @@ static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_mem_info *rmem) if (!rmem->pg_arr[i]) return -ENOMEM; + if (rmem->init_val) + memset(rmem->pg_arr[i], rmem->init_val, + rmem->page_size); if (rmem->nr_pages > 1 || rmem->depth > 0) { if (i == rmem->nr_pages - 2 && (rmem->flags & BNXT_RMEM_RING_PTE_FLAG)) @@ -6487,6 +6490,7 @@ static int bnxt_hwrm_func_backing_store_qcaps(struct bnxt *bp) le16_to_cpu(resp->mrav_num_entries_units); 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; } else { rc = 0; } @@ -6641,7 +6645,7 @@ static int bnxt_alloc_ctx_mem_blk(struct bnxt *bp, static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, struct bnxt_ctx_pg_info *ctx_pg, u32 mem_size, - u8 depth) + u8 depth, bool use_init_val) { struct bnxt_ring_mem_info *rmem = &ctx_pg->ring_mem; int rc; @@ -6679,6 +6683,8 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, rmem->pg_tbl_map = ctx_pg->ctx_dma_arr[i]; rmem->depth = 1; rmem->nr_pages = MAX_CTX_PAGES; + if (use_init_val) + rmem->init_val = bp->ctx->ctx_kind_initializer; if (i == (nr_tbls - 1)) { int rem = ctx_pg->nr_pages % MAX_CTX_PAGES; @@ -6693,6 +6699,8 @@ static int bnxt_alloc_ctx_pg_tbls(struct bnxt *bp, rmem->nr_pages = DIV_ROUND_UP(mem_size, BNXT_PAGE_SIZE); if (rmem->nr_pages > 1 || depth) rmem->depth = 1; + if (use_init_val) + rmem->init_val = bp->ctx->ctx_kind_initializer; rc = bnxt_alloc_ctx_mem_blk(bp, ctx_pg); } return rc; @@ -6783,21 +6791,21 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp) ctx_pg->entries = ctx->qp_min_qp1_entries + ctx->qp_max_l2_entries + extra_qps; mem_size = ctx->qp_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true); if (rc) return rc; ctx_pg = &ctx->srq_mem; ctx_pg->entries = ctx->srq_max_l2_entries + extra_srqs; mem_size = ctx->srq_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true); if (rc) return rc; ctx_pg = &ctx->cq_mem; ctx_pg->entries = ctx->cq_max_l2_entries + extra_qps * 2; mem_size = ctx->cq_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, pg_lvl, true); if (rc) return rc; @@ -6805,14 +6813,14 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp) ctx_pg->entries = ctx->vnic_max_vnic_entries + ctx->vnic_max_ring_table_entries; mem_size = ctx->vnic_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true); if (rc) return rc; ctx_pg = &ctx->stat_mem; ctx_pg->entries = ctx->stat_max_entries; mem_size = ctx->stat_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, true); if (rc) return rc; @@ -6828,7 +6836,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp) num_ah = 1024 * 128; ctx_pg->entries = num_mr + num_ah; mem_size = ctx->mrav_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 2, true); if (rc) return rc; ena = FUNC_BACKING_STORE_CFG_REQ_ENABLES_MRAV; @@ -6840,7 +6848,7 @@ static int bnxt_alloc_ctx_mem(struct bnxt *bp) ctx_pg = &ctx->tim_mem; ctx_pg->entries = ctx->qp_mem.entries; mem_size = ctx->tim_entry_size * ctx_pg->entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false); if (rc) return rc; ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TIM; @@ -6854,7 +6862,7 @@ skip_rdma: ctx_pg = ctx->tqm_mem[i]; ctx_pg->entries = entries; mem_size = ctx->tqm_entry_size * entries; - rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1); + rc = bnxt_alloc_ctx_pg_tbls(bp, ctx_pg, mem_size, 1, false); if (rc) return rc; ena |= FUNC_BACKING_STORE_CFG_REQ_ENABLES_TQM_SP << i; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 35c483b9db67..dbdd09750d91 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -721,6 +721,7 @@ struct bnxt_ring_mem_info { #define BNXT_RMEM_USE_FULL_PAGE_FLAG 4 u16 depth; + u8 init_val; void **pg_arr; dma_addr_t *dma_arr; @@ -1352,6 +1353,7 @@ struct bnxt_ctx_mem_info { u32 tim_max_entries; u16 mrav_num_entries_units; u8 tqm_entries_multiple; + u8 ctx_kind_initializer; u32 flags; #define BNXT_CTX_FLAG_INITED 0x01 -- cgit v1.2.3-59-g8ed1b