[PATCH V3 for-next 2/3] RDMA/bnxt_re: fix stat push into dma buffer on gen p5 devices

From: Devesh Sharma <devesh.sharma@broadcom.com>
To: dledford@redhat.com, jgg@mellanox.com
Cc: linux-rdma@vger.kernel.org, Devesh Sharma <devesh.sharma@broadcom.com>
Subject: [PATCH V3 for-next 2/3] RDMA/bnxt_re: fix stat push into dma buffer on gen p5 devices
Date: Thu, 21 Nov 2019 01:22:22 -0500	[thread overview]
Message-ID: <1574317343-23300-3-git-send-email-devesh.sharma@broadcom.com> (raw)
In-Reply-To: <1574317343-23300-1-git-send-email-devesh.sharma@broadcom.com>

Due to recent advances in the firmware for Broadcom's
gen p5 series of adaptors the driver code to report
hardware counters has been broken w.r.t. roce devices.

Making a change to match the expectaion of newer firmware
version when stat dma buffer is created. The new firmware
command expects dma length to be specified during stat
dma buffer allocation.

Fixes: 2792b5b95ed5 ("bnxt_en: Update firmware interface spec. to 1.10.0.89")
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index d6785b8..a2ac88e 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -494,6 +494,7 @@ 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.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);
-- 
1.8.3.1

