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Message-Id: <1595820586-2203-8-git-send-email-michael.chan@broadcom.com>
Date: Sun, 26 Jul 2020 23:29:43 -0400
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH net-next 07/10] bnxt_en: Retrieve hardware masks for port counters.
If supported by newer firmware, make the firmware call to query all
the port counter masks. If not supported, assume 40-bit port
counter masks.
Reviewed-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 75 ++++++++++++++++++++++++++++---
1 file changed, 70 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 65d503f..b79d8e9 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3785,13 +3785,19 @@ static int bnxt_hwrm_func_qstat_ext(struct bnxt *bp,
return rc;
}
+static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags);
+static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags);
+
static void bnxt_init_stats(struct bnxt *bp)
{
struct bnxt_napi *bnapi = bp->bnapi[0];
struct bnxt_cp_ring_info *cpr;
struct bnxt_stats_mem *stats;
+ __le64 *rx_stats, *tx_stats;
+ int rc, rx_count, tx_count;
+ u64 *rx_masks, *tx_masks;
u64 mask;
- int rc;
+ u8 flags;
cpr = &bnapi->cp_ring;
stats = &cpr->stats;
@@ -3803,6 +3809,54 @@ static void bnxt_init_stats(struct bnxt *bp)
mask = -1ULL;
bnxt_fill_masks(stats->hw_masks, mask, stats->len / 8);
}
+ if (bp->flags & BNXT_FLAG_PORT_STATS) {
+ stats = &bp->port_stats;
+ rx_stats = stats->hw_stats;
+ rx_masks = stats->hw_masks;
+ rx_count = sizeof(struct rx_port_stats) / 8;
+ tx_stats = rx_stats + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
+ tx_masks = rx_masks + BNXT_TX_PORT_STATS_BYTE_OFFSET / 8;
+ tx_count = sizeof(struct tx_port_stats) / 8;
+
+ flags = PORT_QSTATS_REQ_FLAGS_COUNTER_MASK;
+ rc = bnxt_hwrm_port_qstats(bp, flags);
+ if (rc) {
+ mask = (1ULL << 40) - 1;
+
+ bnxt_fill_masks(rx_masks, mask, rx_count);
+ bnxt_fill_masks(tx_masks, mask, tx_count);
+ } else {
+ bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count);
+ bnxt_copy_hw_masks(tx_masks, tx_stats, tx_count);
+ bnxt_hwrm_port_qstats(bp, 0);
+ }
+ }
+ if (bp->flags & BNXT_FLAG_PORT_STATS_EXT) {
+ stats = &bp->rx_port_stats_ext;
+ rx_stats = stats->hw_stats;
+ rx_masks = stats->hw_masks;
+ rx_count = sizeof(struct rx_port_stats_ext) / 8;
+ stats = &bp->tx_port_stats_ext;
+ tx_stats = stats->hw_stats;
+ tx_masks = stats->hw_masks;
+ tx_count = sizeof(struct tx_port_stats_ext) / 8;
+
+ flags = FUNC_QSTATS_EXT_REQ_FLAGS_COUNTER_MASK;
+ rc = bnxt_hwrm_port_qstats_ext(bp, flags);
+ if (rc) {
+ mask = (1ULL << 40) - 1;
+
+ bnxt_fill_masks(rx_masks, mask, rx_count);
+ if (tx_stats)
+ bnxt_fill_masks(tx_masks, mask, tx_count);
+ } else {
+ bnxt_copy_hw_masks(rx_masks, rx_stats, rx_count);
+ if (tx_stats)
+ bnxt_copy_hw_masks(tx_masks, tx_stats,
+ tx_count);
+ bnxt_hwrm_port_qstats_ext(bp, 0);
+ }
+ }
}
static void bnxt_free_port_stats(struct bnxt *bp)
@@ -7530,7 +7584,7 @@ int bnxt_hwrm_fw_set_time(struct bnxt *bp)
return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
}
-static int bnxt_hwrm_port_qstats(struct bnxt *bp)
+static int bnxt_hwrm_port_qstats(struct bnxt *bp, u8 flags)
{
struct bnxt_pf_info *pf = &bp->pf;
struct hwrm_port_qstats_input req = {0};
@@ -7538,6 +7592,10 @@ static int bnxt_hwrm_port_qstats(struct bnxt *bp)
if (!(bp->flags & BNXT_FLAG_PORT_STATS))
return 0;
+ if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))
+ return -EOPNOTSUPP;
+
+ req.flags = flags;
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS, -1, -1);
req.port_id = cpu_to_le16(pf->port_id);
req.tx_stat_host_addr = cpu_to_le64(bp->port_stats.hw_stats_map +
@@ -7546,7 +7604,7 @@ static int bnxt_hwrm_port_qstats(struct bnxt *bp)
return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
}
-static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp)
+static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp, u8 flags)
{
struct hwrm_port_qstats_ext_output *resp = bp->hwrm_cmd_resp_addr;
struct hwrm_queue_pri2cos_qcfg_input req2 = {0};
@@ -7558,7 +7616,11 @@ static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp)
if (!(bp->flags & BNXT_FLAG_PORT_STATS_EXT))
return 0;
+ if (flags && !(bp->fw_cap & BNXT_FW_CAP_EXT_HW_STATS_SUPPORTED))
+ return -EOPNOTSUPP;
+
bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS_EXT, -1, -1);
+ req.flags = flags;
req.port_id = cpu_to_le16(pf->port_id);
req.rx_stat_size = cpu_to_le16(sizeof(struct rx_port_stats_ext));
req.rx_stat_host_addr = cpu_to_le64(bp->rx_port_stats_ext.hw_stats_map);
@@ -7576,6 +7638,9 @@ static int bnxt_hwrm_port_qstats_ext(struct bnxt *bp)
bp->fw_rx_stats_ext_size = 0;
bp->fw_tx_stats_ext_size = 0;
}
+ if (flags)
+ goto qstats_done;
+
if (bp->fw_tx_stats_ext_size <=
offsetof(struct tx_port_stats_ext, pfc_pri0_tx_duration_us) / 8) {
mutex_unlock(&bp->hwrm_cmd_lock);
@@ -10494,8 +10559,8 @@ static void bnxt_sp_task(struct work_struct *work)
if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event))
bnxt_hwrm_exec_fwd_req(bp);
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_port_qstats(bp, 0);
+ bnxt_hwrm_port_qstats_ext(bp, 0);
}
if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
--
1.8.3.1
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