diff options
| author | Pavan Chebbi <pavan.chebbi@broadcom.com> | 2023-12-11 16:51:21 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-12 16:05:58 -0800 |
| commit | 84793a499578a5447b90b298aa8ac4fd314f6f9f (patch) | |
| tree | be6d496017276ec41b3628006d10b94400f72570 /drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | |
| parent | feeef68f6f3d21a1ebda7eb00d4f7aa5423d17be (diff) | |
bnxt_en: Skip nic close/open when configuring tstamp filters
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 <andrew.gospodarek@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20231212005122.2401-13-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 29 |
1 files changed, 10 insertions, 19 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) |