From: Naresh Kumar PBS Date: Sun, 11 Jul 2021 13:31:36 +0000 (-0700) Subject: RDMA/bnxt_re: Fix stats counters X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0c23af52ccd1605926480b5dfd1dd857ef604611;p=linux.git RDMA/bnxt_re: Fix stats counters Statistical counters are not incrementing in some adapter versions with newer FW. This is due to the stats context length mismatch between FW and driver. Since the L2 driver updates the length correctly, use the stats length from L2 driver while allocating the DMA'able memory and creating the stats context. Fixes: 9d6b648c3112 ("bnxt_en: Update firmware interface spec to 1.10.1.65.") Link: https://lore.kernel.org/r/1626010296-6076-1-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Naresh Kumar PBS Signed-off-by: Selvin Xavier Signed-off-by: Jason Gunthorpe --- diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c index d5674026512ae..a8688a92c7602 100644 --- a/drivers/infiniband/hw/bnxt_re/main.c +++ b/drivers/infiniband/hw/bnxt_re/main.c @@ -120,6 +120,7 @@ static int bnxt_re_setup_chip_ctx(struct bnxt_re_dev *rdev, u8 wqe_mode) if (!chip_ctx) return -ENOMEM; chip_ctx->chip_num = bp->chip_num; + chip_ctx->hw_stats_size = bp->hw_ring_stats_size; rdev->chip_ctx = chip_ctx; /* rest members to follow eventually */ @@ -550,6 +551,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, dma_addr_t dma_map, u32 *fw_stats_ctx_id) { + struct bnxt_qplib_chip_ctx *chip_ctx = rdev->chip_ctx; struct hwrm_stat_ctx_alloc_output resp = {0}; struct hwrm_stat_ctx_alloc_input req = {0}; struct bnxt_en_dev *en_dev = rdev->en_dev; @@ -566,7 +568,7 @@ static int bnxt_re_net_stats_ctx_alloc(struct bnxt_re_dev *rdev, bnxt_re_init_hwrm_hdr(rdev, (void *)&req, HWRM_STAT_CTX_ALLOC, -1, -1); req.update_period_ms = cpu_to_le32(1000); req.stats_dma_addr = cpu_to_le64(dma_map); - req.stats_dma_length = cpu_to_le16(sizeof(struct ctx_hw_stats_ext)); + req.stats_dma_length = cpu_to_le16(chip_ctx->hw_stats_size); req.stat_ctx_flags = STAT_CTX_ALLOC_REQ_STAT_CTX_FLAGS_ROCE; bnxt_re_fill_fw_msg(&fw_msg, (void *)&req, sizeof(req), (void *)&resp, sizeof(resp), DFLT_HWRM_CMD_TIMEOUT); diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.c b/drivers/infiniband/hw/bnxt_re/qplib_res.c index 17f0701b3cee1..44282a8cdd4f2 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c @@ -56,6 +56,7 @@ static void bnxt_qplib_free_stats_ctx(struct pci_dev *pdev, struct bnxt_qplib_stats *stats); static int bnxt_qplib_alloc_stats_ctx(struct pci_dev *pdev, + struct bnxt_qplib_chip_ctx *cctx, struct bnxt_qplib_stats *stats); /* PBL */ @@ -559,7 +560,7 @@ int bnxt_qplib_alloc_ctx(struct bnxt_qplib_res *res, goto fail; stats_alloc: /* Stats */ - rc = bnxt_qplib_alloc_stats_ctx(res->pdev, &ctx->stats); + rc = bnxt_qplib_alloc_stats_ctx(res->pdev, res->cctx, &ctx->stats); if (rc) goto fail; @@ -889,15 +890,12 @@ static void bnxt_qplib_free_stats_ctx(struct pci_dev *pdev, } static int bnxt_qplib_alloc_stats_ctx(struct pci_dev *pdev, + struct bnxt_qplib_chip_ctx *cctx, struct bnxt_qplib_stats *stats) { memset(stats, 0, sizeof(*stats)); stats->fw_id = -1; - /* 128 byte aligned context memory is required only for 57500. - * However making this unconditional, it does not harm previous - * generation. - */ - stats->size = ALIGN(sizeof(struct ctx_hw_stats), 128); + stats->size = cctx->hw_stats_size; stats->dma = dma_alloc_coherent(&pdev->dev, stats->size, &stats->dma_map, GFP_KERNEL); if (!stats->dma) { diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h index c291f495ae91d..91031502e8f5d 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h @@ -54,6 +54,7 @@ struct bnxt_qplib_chip_ctx { u16 chip_num; u8 chip_rev; u8 chip_metal; + u16 hw_stats_size; struct bnxt_qplib_drv_modes modes; };