[PATCH net-next 4/5] bnxt_en: Add pcie_ctx_v2 support for ethtool -d
From: Michael Chan <michael.chan@broadcom.com>
Date: 2025-08-18 00:50:39
Subsystem:
broadcom bnxt_en 50 gigabit ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Pavan Chebbi, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Shruti Parab <redacted> Add support to dump the expanded v2 struct that contains PCIE read/write latency and credit histogram data. Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Reviewed-by: Andy Gospodarek <redacted> Signed-off-by: Shruti Parab <redacted> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index abb895fb1a9c..2830a2b17a27 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c@@ -2088,14 +2088,16 @@ __bnxt_hwrm_pcie_qstats(struct bnxt *bp, struct hwrm_pcie_qstats_input *req) } #define BNXT_PCIE_32B_ENTRY(start, end) \ - { offsetof(struct pcie_ctx_hw_stats, start), \ - offsetof(struct pcie_ctx_hw_stats, end) } + { offsetof(struct pcie_ctx_hw_stats_v2, start),\ + offsetof(struct pcie_ctx_hw_stats_v2, end) } static const struct { u16 start; u16 end; } bnxt_pcie_32b_entries[] = { BNXT_PCIE_32B_ENTRY(pcie_ltssm_histogram[0], pcie_ltssm_histogram[3]), + BNXT_PCIE_32B_ENTRY(pcie_tl_credit_nph_histogram[0], unused_1), + BNXT_PCIE_32B_ENTRY(pcie_rd_latency_histogram[0], unused_2), }; static void bnxt_get_regs(struct net_device *dev, struct ethtool_regs *regs,
@@ -2123,7 +2125,13 @@ static void bnxt_get_regs(struct net_device *dev, struct ethtool_regs *regs, int i, j, len; len = min(bp->pcie_stat_len, le16_to_cpu(resp->pcie_stat_size)); - regs->version = 1; + if (len <= sizeof(struct pcie_ctx_hw_stats)) + regs->version = 1; + else if (len < sizeof(struct pcie_ctx_hw_stats_v2)) + regs->version = 2; + else + regs->version = 3; + for (i = 0, j = 0; i < len; ) { if (i >= bnxt_pcie_32b_entries[j].start && i <= bnxt_pcie_32b_entries[j].end) {
--
2.30.1