diff options
| author | Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> | 2016-06-21 16:36:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-23 22:56:46 +0300 |
| commit | 722003ac40c2c397bd5bc2b714125bc82ab27043 (patch) | |
| tree | ff93a5075ef810931d0434d42d0fd55b68ff7ae0 /drivers/net/ethernet/qlogic/qed/qed_main.c | |
| parent | dc14341ed6b4e9d0a1d68c437a7ba84a621f1714 (diff) | |
| download | linux-722003ac40c2c397bd5bc2b714125bc82ab27043.tar.xz | |
qed: Add support for coalescing config read/update.
This patch adds support for configuring the device tx/rx coalescing
timeout values in the order of micro seconds. It also adds APIs for
upper layer drivers for reading/updating the coalescing values.
Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_main.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c index 6c4606b44b7e..e32ee57cdfee 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -1303,6 +1303,38 @@ static int qed_drain(struct qed_dev *cdev) return 0; } +static void qed_get_coalesce(struct qed_dev *cdev, u16 *rx_coal, u16 *tx_coal) +{ + *rx_coal = cdev->rx_coalesce_usecs; + *tx_coal = cdev->tx_coalesce_usecs; +} + +static int qed_set_coalesce(struct qed_dev *cdev, u16 rx_coal, u16 tx_coal, + u8 qid, u16 sb_id) +{ + struct qed_hwfn *hwfn; + struct qed_ptt *ptt; + int hwfn_index; + int status = 0; + + hwfn_index = qid % cdev->num_hwfns; + hwfn = &cdev->hwfns[hwfn_index]; + ptt = qed_ptt_acquire(hwfn); + if (!ptt) + return -EAGAIN; + + status = qed_set_rxq_coalesce(hwfn, ptt, rx_coal, + qid / cdev->num_hwfns, sb_id); + if (status) + goto out; + status = qed_set_txq_coalesce(hwfn, ptt, tx_coal, + qid / cdev->num_hwfns, sb_id); +out: + qed_ptt_release(hwfn, ptt); + + return status; +} + static int qed_set_led(struct qed_dev *cdev, enum qed_led_mode mode) { struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); @@ -1349,5 +1381,7 @@ const struct qed_common_ops qed_common_ops_pass = { .update_msglvl = &qed_init_dp, .chain_alloc = &qed_chain_alloc, .chain_free = &qed_chain_free, + .get_coalesce = &qed_get_coalesce, + .set_coalesce = &qed_set_coalesce, .set_led = &qed_set_led, }; |