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Message-Id: <1595842845-19403-2-git-send-email-michael.chan@broadcom.com>
Date: Mon, 27 Jul 2020 05:40:36 -0400
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, kuba@...nel.org,
Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Subject: [PATCH net-next v2 01/10] bnxt_en: Remove PCIe non-counters from ethtool statistics
From: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Remove PCIe non-counters display from ethtool statistics, as
they are not simple counters but register dump. The next few
patches will add logic to detect counter roll-over and it won't
work with these PCIe non-counters.
There will be a follow up patch to get PCIe information via
ethtool register dump.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 35 +-------------------
drivers/net/ethernet/broadcom/bnxt/bnxt.h | 6 ----
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 39 -----------------------
3 files changed, 1 insertion(+), 79 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index a7e5ebe..b294de1 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3730,12 +3730,6 @@ 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)
@@ -3818,7 +3812,7 @@ static int bnxt_alloc_stats(struct bnxt *bp)
alloc_tx_ext_stats:
if (bp->hw_tx_port_stats_ext)
- goto alloc_pcie_stats;
+ return 0;
if (bp->hwrm_spec_code >= 0x10902 ||
(bp->fw_cap & BNXT_FW_CAP_EXT_STATS_SUPPORTED)) {
@@ -3829,19 +3823,6 @@ static int bnxt_alloc_stats(struct bnxt *bp)
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;
}
@@ -7566,19 +7547,6 @@ 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_fw_dst_port_id != INVALID_HW_RING_ID)
@@ -10458,7 +10426,6 @@ 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)) {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 2acd7f9..10286cb 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1566,7 +1566,6 @@ struct bnxt {
#define BNXT_FLAG_DIM 0x2000000
#define BNXT_FLAG_ROCE_MIRROR_CAP 0x4000000
#define BNXT_FLAG_PORT_STATS_EXT 0x10000000
- #define BNXT_FLAG_PCIE_STATS 0x40000000
#define BNXT_FLAG_ALL_CONFIG_FEATS (BNXT_FLAG_TPA | \
BNXT_FLAG_RFS | \
@@ -1737,12 +1736,10 @@ struct bnxt {
struct tx_port_stats *hw_tx_port_stats;
struct rx_port_stats_ext *hw_rx_port_stats_ext;
struct tx_port_stats_ext *hw_tx_port_stats_ext;
- struct pcie_ctx_hw_stats *hw_pcie_stats;
dma_addr_t hw_rx_port_stats_map;
dma_addr_t hw_tx_port_stats_map;
dma_addr_t hw_rx_port_stats_ext_map;
dma_addr_t hw_tx_port_stats_ext_map;
- dma_addr_t hw_pcie_stats_map;
int hw_port_stats_size;
u16 fw_rx_stats_ext_size;
u16 fw_tx_stats_ext_size;
@@ -1898,9 +1895,6 @@ struct bnxt {
#define BNXT_TX_STATS_EXT_OFFSET(counter) \
(offsetof(struct tx_port_stats_ext, counter) / 8)
-#define BNXT_PCIE_STATS_OFFSET(counter) \
- (offsetof(struct pcie_ctx_hw_stats, counter) / 8)
-
#define BNXT_HW_FEATURE_VLAN_ALL_RX \
(NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)
#define BNXT_HW_FEATURE_VLAN_ALL_TX \
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 538c976..dded170 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -293,9 +293,6 @@ static int bnxt_set_coalesce(struct net_device *dev,
BNXT_TX_STATS_PRI_ENTRY(counter, 6), \
BNXT_TX_STATS_PRI_ENTRY(counter, 7)
-#define BNXT_PCIE_STATS_ENTRY(counter) \
- { BNXT_PCIE_STATS_OFFSET(counter), __stringify(counter) }
-
enum {
RX_TOTAL_DISCARDS,
TX_TOTAL_DISCARDS,
@@ -454,24 +451,6 @@ enum {
BNXT_TX_STATS_PRI_ENTRIES(tx_packets),
};
-static const struct {
- long offset;
- char string[ETH_GSTRING_LEN];
-} bnxt_pcie_stats_arr[] = {
- BNXT_PCIE_STATS_ENTRY(pcie_pl_signal_integrity),
- BNXT_PCIE_STATS_ENTRY(pcie_dl_signal_integrity),
- BNXT_PCIE_STATS_ENTRY(pcie_tl_signal_integrity),
- BNXT_PCIE_STATS_ENTRY(pcie_link_integrity),
- BNXT_PCIE_STATS_ENTRY(pcie_tx_traffic_rate),
- BNXT_PCIE_STATS_ENTRY(pcie_rx_traffic_rate),
- BNXT_PCIE_STATS_ENTRY(pcie_tx_dllp_statistics),
- BNXT_PCIE_STATS_ENTRY(pcie_rx_dllp_statistics),
- BNXT_PCIE_STATS_ENTRY(pcie_equalization_time),
- BNXT_PCIE_STATS_ENTRY(pcie_ltssm_histogram[0]),
- BNXT_PCIE_STATS_ENTRY(pcie_ltssm_histogram[2]),
- BNXT_PCIE_STATS_ENTRY(pcie_recovery_histogram),
-};
-
#define BNXT_NUM_SW_FUNC_STATS ARRAY_SIZE(bnxt_sw_func_stats)
#define BNXT_NUM_PORT_STATS ARRAY_SIZE(bnxt_port_stats_arr)
#define BNXT_NUM_STATS_PRI \
@@ -479,7 +458,6 @@ enum {
ARRAY_SIZE(bnxt_rx_pkts_pri_arr) + \
ARRAY_SIZE(bnxt_tx_bytes_pri_arr) + \
ARRAY_SIZE(bnxt_tx_pkts_pri_arr))
-#define BNXT_NUM_PCIE_STATS ARRAY_SIZE(bnxt_pcie_stats_arr)
static int bnxt_get_num_tpa_ring_stats(struct bnxt *bp)
{
@@ -526,9 +504,6 @@ static int bnxt_get_num_stats(struct bnxt *bp)
num_stats += BNXT_NUM_STATS_PRI;
}
- if (bp->flags & BNXT_FLAG_PCIE_STATS)
- num_stats += BNXT_NUM_PCIE_STATS;
-
return num_stats;
}
@@ -674,14 +649,6 @@ static void bnxt_get_ethtool_stats(struct net_device *dev,
}
}
}
- if (bp->flags & BNXT_FLAG_PCIE_STATS) {
- __le64 *pcie_stats = (__le64 *)bp->hw_pcie_stats;
-
- for (i = 0; i < BNXT_NUM_PCIE_STATS; i++, j++) {
- buf[j] = le64_to_cpu(*(pcie_stats +
- bnxt_pcie_stats_arr[i].offset));
- }
- }
}
static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
@@ -782,12 +749,6 @@ static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
}
}
}
- if (bp->flags & BNXT_FLAG_PCIE_STATS) {
- for (i = 0; i < BNXT_NUM_PCIE_STATS; i++) {
- strcpy(buf, bnxt_pcie_stats_arr[i].string);
- buf += ETH_GSTRING_LEN;
- }
- }
break;
case ETH_SS_TEST:
if (bp->num_tests)
--
1.8.3.1
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