diff options
| author | Vasundhara Volam | 2019-05-05 13:17:00 +0200 |
|---|---|---|
| committer | David S. Miller | 2019-05-06 06:42:17 +0200 |
| commit | 55e4398d4ee578094fb38f25af175629a24675d5 (patch) | |
| tree | 8c40ebc9125623ec1053dfeb33926fe3b4c9a87e /drivers/net/ethernet/broadcom/bnxt/bnxt.c | |
| parent | bnxt_en: Refactor bnxt_alloc_stats(). (diff) | |
| download | kernel-qcow2-linux-55e4398d4ee578094fb38f25af175629a24675d5.tar.gz kernel-qcow2-linux-55e4398d4ee578094fb38f25af175629a24675d5.tar.xz kernel-qcow2-linux-55e4398d4ee578094fb38f25af175629a24675d5.zip | |
bnxt_en: Add support for PCIe statistics
Gather periodic PCIe statistics for ethtool -S.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 1fb6d5eb3cc3..b7a600564a16 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3396,6 +3396,12 @@ static void bnxt_free_port_stats(struct bnxt *bp) bp->hw_rx_port_stats_ext_map); bp->hw_rx_port_stats_ext = NULL; } + + if (bp->hw_pcie_stats) { + dma_free_coherent(&pdev->dev, sizeof(struct pcie_ctx_hw_stats), + bp->hw_pcie_stats, bp->hw_pcie_stats_map); + bp->hw_pcie_stats = NULL; + } } static void bnxt_free_ring_stats(struct bnxt *bp) @@ -3477,7 +3483,7 @@ alloc_ext_stats: alloc_tx_ext_stats: if (bp->hw_tx_port_stats_ext) - return 0; + goto alloc_pcie_stats; if (bp->hwrm_spec_code >= 0x10902) { bp->hw_tx_port_stats_ext = @@ -3487,6 +3493,19 @@ alloc_tx_ext_stats: GFP_KERNEL); } bp->flags |= BNXT_FLAG_PORT_STATS_EXT; + +alloc_pcie_stats: + if (bp->hw_pcie_stats || + !(bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED)) + return 0; + + bp->hw_pcie_stats = + dma_alloc_coherent(&pdev->dev, sizeof(struct pcie_ctx_hw_stats), + &bp->hw_pcie_stats_map, GFP_KERNEL); + if (!bp->hw_pcie_stats) + return 0; + + bp->flags |= BNXT_FLAG_PCIE_STATS; return 0; } @@ -6505,6 +6524,8 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) bp->flags |= BNXT_FLAG_ROCEV1_CAP; if (flags & FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED) bp->flags |= BNXT_FLAG_ROCEV2_CAP; + if (flags & FUNC_QCAPS_RESP_FLAGS_PCIE_STATS_SUPPORTED) + bp->fw_cap |= BNXT_FW_CAP_PCIE_STATS_SUPPORTED; bp->tx_push_thresh = 0; if (flags & FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED) @@ -6805,6 +6826,19 @@ static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp) return rc; } +static int bnxt_hwrm_pcie_qstats(struct bnxt *bp) +{ + struct hwrm_pcie_qstats_input req = {0}; + + if (!(bp->flags & BNXT_FLAG_PCIE_STATS)) + return 0; + + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PCIE_QSTATS, -1, -1); + req.pcie_stat_size = cpu_to_le16(sizeof(struct pcie_ctx_hw_stats)); + req.pcie_stat_host_addr = cpu_to_le64(bp->hw_pcie_stats_map); + return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); +} + static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp) { if (bp->vxlan_port_cnt) { @@ -9395,6 +9429,7 @@ static void bnxt_sp_task(struct work_struct *work) if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) { bnxt_hwrm_port_qstats(bp); bnxt_hwrm_port_qstats_ext(bp); + bnxt_hwrm_pcie_qstats(bp); } if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { |