diff options
| author | Pavan Chebbi <pavan.chebbi@broadcom.com> | 2022-01-25 23:40:13 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-01-26 15:35:20 +0000 |
| commit | 8bcf6f04d4a531d2efd9b51f13d903aa03985ac6 (patch) | |
| tree | 110053addf17a6bf8d9d0e9c6ede76f58cc571b9 /drivers/net/ethernet/broadcom | |
| parent | e7b0afb69083ff7199dec51e7b9b1646e799943b (diff) | |
| download | linux-8bcf6f04d4a531d2efd9b51f13d903aa03985ac6.tar.bz2 | |
bnxt_en: Handle async event when the PHC is updated in RTC mode
In Multi-host environment, when the PHC is updated by one host,
an async message from firmware will be sent to other hosts.
Re-initialize the timecounter when the driver receives this
async message.
Cc: Richard Cochran <richardcochran@gmail.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 514798a4f15b..c313221348c5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -233,6 +233,7 @@ static const u16 bnxt_async_events_arr[] = { ASYNC_EVENT_CMPL_EVENT_ID_ECHO_REQUEST, ASYNC_EVENT_CMPL_EVENT_ID_PPS_TIMESTAMP, ASYNC_EVENT_CMPL_EVENT_ID_ERROR_REPORT, + ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE, }; static struct workqueue_struct *bnxt_pf_wq; @@ -2079,6 +2080,16 @@ static void bnxt_event_error_report(struct bnxt *bp, u32 data1, u32 data2) (BNXT_EVENT_RING_TYPE(data2) == \ ASYNC_EVENT_CMPL_RING_MONITOR_MSG_EVENT_DATA2_DISABLE_RING_TYPE_RX) +#define BNXT_EVENT_PHC_EVENT_TYPE(data1) \ + (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_MASK) >>\ + ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_SFT) + +#define BNXT_EVENT_PHC_RTC_UPDATE(data1) \ + (((data1) & ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_MASK) >>\ + ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_PHC_TIME_MSB_SFT) + +#define BNXT_PHC_BITS 48 + static int bnxt_async_event_process(struct bnxt *bp, struct hwrm_async_event_cmpl *cmpl) { @@ -2258,6 +2269,24 @@ static int bnxt_async_event_process(struct bnxt *bp, bnxt_event_error_report(bp, data1, data2); goto async_event_process_exit; } + case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: { + switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) { + case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE: + if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) { + struct bnxt_ptp_cfg *ptp = bp->ptp_cfg; + u64 ns; + + spin_lock_bh(&ptp->ptp_lock); + bnxt_ptp_update_current_time(bp); + ns = (((u64)BNXT_EVENT_PHC_RTC_UPDATE(data1) << + BNXT_PHC_BITS) | ptp->current_time); + bnxt_ptp_rtc_timecounter_init(ptp, ns); + spin_unlock_bh(&ptp->ptp_lock); + } + break; + } + goto async_event_process_exit; + } case ASYNC_EVENT_CMPL_EVENT_ID_DEFERRED_RESPONSE: { u16 seq_id = le32_to_cpu(cmpl->event_data2) & 0xffff; |