diff options
| author | sudarsana.kalluru@cavium.com <sudarsana.kalluru@cavium.com> | 2017-04-26 09:00:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-27 16:51:34 -0400 |
| commit | d179bd1699fccd9d5b9bc38470bab7343a441ea0 (patch) | |
| tree | 8b356b9b565dcce8e052eaccc5e89334bc23694e /drivers/net/ethernet/qlogic/qed/qed_ptp.c | |
| parent | 6a3ff0db13110fad9ecaf9554e0a1f93c5d7b774 (diff) | |
qed: Acquire/release ptt_ptp lock when enabling/disabling PTP.
Move the code for acquiring/releasing ptt_ptp lock to ptp specific
implementations i.e., ptp_enable()/disable() respectively.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_ptp.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_ptp.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_ptp.c b/drivers/net/ethernet/qlogic/qed/qed_ptp.c index c0a3cbdfadfa..1871ebfdb793 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_ptp.c +++ b/drivers/net/ethernet/qlogic/qed/qed_ptp.c @@ -324,13 +324,23 @@ static int qed_ptp_hw_adjfreq(struct qed_dev *cdev, s32 ppb) static int qed_ptp_hw_enable(struct qed_dev *cdev) { struct qed_hwfn *p_hwfn = QED_LEADING_HWFN(cdev); - struct qed_ptt *p_ptt = p_hwfn->p_ptp_ptt; + struct qed_ptt *p_ptt; int rc; + p_ptt = qed_ptt_acquire(p_hwfn); + if (!p_ptt) { + DP_NOTICE(p_hwfn, "Failed to acquire PTT for PTP\n"); + return -EBUSY; + } + + p_hwfn->p_ptp_ptt = p_ptt; + rc = qed_ptp_res_lock(p_hwfn, p_ptt); if (rc) { DP_INFO(p_hwfn, "Couldn't acquire the resource lock, skip ptp enable for this PF\n"); + qed_ptt_release(p_hwfn, p_ptt); + p_hwfn->p_ptp_ptt = NULL; return rc; } @@ -402,6 +412,9 @@ static int qed_ptp_hw_disable(struct qed_dev *cdev) qed_wr(p_hwfn, p_ptt, NIG_REG_RX_PTP_EN, 0x0); qed_wr(p_hwfn, p_ptt, NIG_REG_TX_PTP_EN, 0x0); + qed_ptt_release(p_hwfn, p_ptt); + p_hwfn->p_ptp_ptt = NULL; + return 0; } |