From b73c1d08a0ec33f2ddafdd21d3a48614da4e6853 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 8 Jul 2020 07:53:54 -0400 Subject: bnxt_en: Fix up bnxt_get_rxfh_indir_size(). Fix up bnxt_get_rxfh_indir_size() to return the proper current RSS table size for P5 chips. Change it to non-static so that bnxt.c can use it to get the table size. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h index ce7585ff9e4d..dddbca1d052c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h @@ -86,6 +86,7 @@ struct hwrm_dbg_cmn_output { extern const struct ethtool_ops bnxt_ethtool_ops; +u32 bnxt_get_rxfh_indir_size(struct net_device *dev); u32 _bnxt_fw_to_ethtool_adv_spds(u16, u8); u32 bnxt_fw_to_ethtool_speed(u16); u16 bnxt_get_fw_auto_link_speeds(u32); -- cgit v1.2.3-59-g8ed1b From b5d600b027eb2733a1d7d253b84efb96c40f6a9d Mon Sep 17 00:00:00 2001 From: Vasundhara Volam Date: Mon, 27 Jul 2020 05:40:45 -0400 Subject: bnxt_en: Add support for 'ethtool -d' Add support to dump PXP registers and PCIe statistics. Signed-off-by: Vasundhara Volam Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 32 +++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt.h | 5 +++ drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 55 +++++++++++++++++++++++ drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h | 2 + 4 files changed, 94 insertions(+) (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 1fc263ba34b1..2622d3c2d766 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -10228,6 +10228,38 @@ static int bnxt_set_features(struct net_device *dev, netdev_features_t features) return rc; } +int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, + u32 *reg_buf) +{ + struct hwrm_dbg_read_direct_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_dbg_read_direct_input req = {0}; + __le32 *dbg_reg_buf; + dma_addr_t mapping; + int rc, i; + + dbg_reg_buf = dma_alloc_coherent(&bp->pdev->dev, num_words * 4, + &mapping, GFP_KERNEL); + if (!dbg_reg_buf) + return -ENOMEM; + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_DBG_READ_DIRECT, -1, -1); + req.host_dest_addr = cpu_to_le64(mapping); + req.read_addr = cpu_to_le32(reg_off + CHIMP_REG_VIEW_ADDR); + req.read_len32 = cpu_to_le32(num_words); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (rc || resp->error_code) { + rc = -EIO; + goto dbg_rd_reg_exit; + } + for (i = 0; i < num_words; i++) + reg_buf[i] = le32_to_cpu(dbg_reg_buf[i]); + +dbg_rd_reg_exit: + mutex_unlock(&bp->hwrm_cmd_lock); + dma_free_coherent(&bp->pdev->dev, num_words * 4, dbg_reg_buf, mapping); + return rc; +} + static int bnxt_dbg_hwrm_ring_info_get(struct bnxt *bp, u8 ring_type, u32 ring_id, u32 *prod, u32 *cons) { diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 0c9b79b765ae..5a13eb66beda 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1304,6 +1304,9 @@ struct bnxt_test_info { char string[BNXT_MAX_TEST][ETH_GSTRING_LEN]; }; +#define CHIMP_REG_VIEW_ADDR \ + ((bp->flags & BNXT_FLAG_CHIP_P5) ? 0x80000000 : 0xb1000000) + #define BNXT_GRCPF_REG_CHIMP_COMM 0x0 #define BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER 0x100 #define BNXT_GRCPF_REG_WINDOW_BASE_OUT 0x400 @@ -2117,6 +2120,8 @@ int bnxt_open_nic(struct bnxt *, bool, bool); int bnxt_half_open_nic(struct bnxt *bp); void bnxt_half_close_nic(struct bnxt *bp); int bnxt_close_nic(struct bnxt *, bool, bool); +int bnxt_dbg_hwrm_rd_reg(struct bnxt *bp, u32 reg_off, u16 num_words, + u32 *reg_buf); void bnxt_fw_exception(struct bnxt *bp); void bnxt_fw_reset(struct bnxt *bp); int bnxt_check_rings(struct bnxt *bp, int tx, int rx, bool sh, int tcs, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 5fd3e92fad85..64da654f1038 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -1324,6 +1324,59 @@ static void bnxt_get_drvinfo(struct net_device *dev, info->regdump_len = 0; } +static int bnxt_get_regs_len(struct net_device *dev) +{ + struct bnxt *bp = netdev_priv(dev); + int reg_len; + + reg_len = BNXT_PXP_REG_LEN; + + if (bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED) + reg_len += sizeof(struct pcie_ctx_hw_stats); + + return reg_len; +} + +static void bnxt_get_regs(struct net_device *dev, struct ethtool_regs *regs, + void *_p) +{ + struct pcie_ctx_hw_stats *hw_pcie_stats; + struct hwrm_pcie_qstats_input req = {0}; + struct bnxt *bp = netdev_priv(dev); + dma_addr_t hw_pcie_stats_addr; + int rc; + + regs->version = 0; + bnxt_dbg_hwrm_rd_reg(bp, 0, BNXT_PXP_REG_LEN / 4, _p); + + if (!(bp->fw_cap & BNXT_FW_CAP_PCIE_STATS_SUPPORTED)) + return; + + hw_pcie_stats = dma_alloc_coherent(&bp->pdev->dev, + sizeof(*hw_pcie_stats), + &hw_pcie_stats_addr, GFP_KERNEL); + if (!hw_pcie_stats) + return; + + regs->version = 1; + bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PCIE_QSTATS, -1, -1); + req.pcie_stat_size = cpu_to_le16(sizeof(*hw_pcie_stats)); + req.pcie_stat_host_addr = cpu_to_le64(hw_pcie_stats_addr); + mutex_lock(&bp->hwrm_cmd_lock); + rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); + if (!rc) { + __le64 *src = (__le64 *)hw_pcie_stats; + u64 *dst = (u64 *)(_p + BNXT_PXP_REG_LEN); + int i; + + for (i = 0; i < sizeof(*hw_pcie_stats) / sizeof(__le64); i++) + dst[i] = le64_to_cpu(src[i]); + } + mutex_unlock(&bp->hwrm_cmd_lock); + dma_free_coherent(&bp->pdev->dev, sizeof(*hw_pcie_stats), hw_pcie_stats, + hw_pcie_stats_addr); +} + static void bnxt_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { struct bnxt *bp = netdev_priv(dev); @@ -3599,6 +3652,8 @@ const struct ethtool_ops bnxt_ethtool_ops = { .get_pauseparam = bnxt_get_pauseparam, .set_pauseparam = bnxt_set_pauseparam, .get_drvinfo = bnxt_get_drvinfo, + .get_regs_len = bnxt_get_regs_len, + .get_regs = bnxt_get_regs, .get_wol = bnxt_get_wol, .set_wol = bnxt_set_wol, .get_coalesce = bnxt_get_coalesce, diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h index dddbca1d052c..34f44ddfad79 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.h @@ -84,6 +84,8 @@ struct hwrm_dbg_cmn_output { ETH_RESET_PHY | ETH_RESET_RAM) \ << ETH_RESET_SHARED_SHIFT) +#define BNXT_PXP_REG_LEN 0x3110 + extern const struct ethtool_ops bnxt_ethtool_ops; u32 bnxt_get_rxfh_indir_size(struct net_device *dev); -- cgit v1.2.3-59-g8ed1b