[PATCH net-next 12/13] bnxt_en: Skip nic close/open when configuring tstamp filters
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STALE998d
LANDED: 1 (0M)
From: Michael Chan <michael.chan@broadcom.com>
Date: 2023-12-12 00:52:02
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
Revision v1 of 2 in this series; 1 review trailer; landed in mainline as 84793a499578 on 2023-12-13.
Revisions (2)
- v1
- v1 current
From: Pavan Chebbi <pavan.chebbi@broadcom.com> We don't have to close and open the nic to make sure we have valid rx timestamps. Once we have the timestamp filter applied to the HW and the timestamp_fld_format bit is cleared in the rx completion and the timestamp is non-zero, we can be sure that rx timestamp is valid data. Skip close/open when we set any timestamp filter. Reviewed-by: Andy Gospodarek <redacted> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> --- drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 29 +++++++------------ drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h | 2 +- 2 files changed, 11 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
index a1ec39b46518..3d1c36d384c2 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c@@ -319,15 +319,17 @@ static int bnxt_ptp_cfg_event(struct bnxt *bp, u8 event) return hwrm_req_send(bp, req); } -void bnxt_ptp_cfg_tstamp_filters(struct bnxt *bp) +int bnxt_ptp_cfg_tstamp_filters(struct bnxt *bp) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; struct hwrm_port_mac_cfg_input *req; + int rc; if (!ptp || !ptp->tstamp_filters) - return; + return -EIO; - if (hwrm_req_init(bp, req, HWRM_PORT_MAC_CFG)) + rc = hwrm_req_init(bp, req, HWRM_PORT_MAC_CFG); + if (rc) goto out; if (!(bp->fw_cap & BNXT_FW_CAP_RX_ALL_PKT_TS) && (ptp->tstamp_filters &
@@ -342,15 +344,17 @@ void bnxt_ptp_cfg_tstamp_filters(struct bnxt *bp) req->enables = cpu_to_le32(PORT_MAC_CFG_REQ_ENABLES_RX_TS_CAPTURE_PTP_MSG_TYPE); req->rx_ts_capture_ptp_msg_type = cpu_to_le16(ptp->rxctl); - if (!hwrm_req_send(bp, req)) { + rc = hwrm_req_send(bp, req); + if (!rc) { bp->ptp_all_rx_tstamp = !!(ptp->tstamp_filters & PORT_MAC_CFG_REQ_FLAGS_ALL_RX_TS_CAPTURE_ENABLE); - return; + return 0; } ptp->tstamp_filters = 0; out: bp->ptp_all_rx_tstamp = 0; netdev_warn(bp->dev, "Failed to configure HW packet timestamp filters\n"); + return rc; } void bnxt_ptp_reapply_pps(struct bnxt *bp)
@@ -494,7 +498,6 @@ static int bnxt_hwrm_ptp_cfg(struct bnxt *bp) { struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; u32 flags = 0; - int rc = 0; switch (ptp->rx_filter) { case HWTSTAMP_FILTER_ALL:
@@ -519,19 +522,7 @@ static int bnxt_hwrm_ptp_cfg(struct bnxt *bp) ptp->tstamp_filters = flags; - if (netif_running(bp->dev)) { - if (ptp->rx_filter == HWTSTAMP_FILTER_ALL) { - rc = bnxt_close_nic(bp, false, false); - if (!rc) - rc = bnxt_open_nic(bp, false, false); - } else { - bnxt_ptp_cfg_tstamp_filters(bp); - } - if (!rc && !ptp->tstamp_filters) - rc = -EIO; - } - - return rc; + return bnxt_ptp_cfg_tstamp_filters(bp); } int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
index 34162e07a119..fce8dc39a7d0 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h@@ -137,7 +137,7 @@ do { \ int bnxt_ptp_parse(struct sk_buff *skb, u16 *seq_id, u16 *hdr_off); void bnxt_ptp_update_current_time(struct bnxt *bp); void bnxt_ptp_pps_event(struct bnxt *bp, u32 data1, u32 data2); -void bnxt_ptp_cfg_tstamp_filters(struct bnxt *bp); +int bnxt_ptp_cfg_tstamp_filters(struct bnxt *bp); void bnxt_ptp_reapply_pps(struct bnxt *bp); int bnxt_hwtstamp_set(struct net_device *dev, struct ifreq *ifr); int bnxt_hwtstamp_get(struct net_device *dev, struct ifreq *ifr);
--
2.30.1
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