diff options
| author |   Chopra, Manish <Manish.Chopra@cavium.com> | 2017-04-13 04:54:44 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-04-17 13:06:18 -0400 |
| commit | d51e4af5c2092c48a06ceaf2323b13a39a2df4ee (patch) | |
| tree | 236d338a52e7abee79ca613a972ac4b643525d3a /drivers/net/ethernet/qlogic/qed/qed_main.c | |
| parent | smsc95xx: Add comments to the registers definition (diff) | |
| download | linux-dev-d51e4af5c2092c48a06ceaf2323b13a39a2df4ee.tar.xz linux-dev-d51e4af5c2092c48a06ceaf2323b13a39a2df4ee.zip | |
qed: aRFS infrastructure support
This patch adds necessary APIs to interface with
qede aRFS support in successive patch.
It also reserves separate PTT entry for aRFS,
[as being in fastpath flow] for hardware access instead of
trying to acquire it at run time from the ptt pool.
Signed-off-by: Manish Chopra <manish.chopra@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_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_main.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c index 029f431e89ec..da562cf8a965 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_main.c +++ b/drivers/net/ethernet/qlogic/qed/qed_main.c @@ -883,6 +883,9 @@ static void qed_update_pf_params(struct qed_dev *cdev, params->rdma_pf_params.gl_pi = QED_ROCE_PROTOCOL_INDEX; } + if (cdev->num_hwfns > 1 || IS_VF(cdev)) + params->eth_pf_params.num_arfs_filters = 0; + /* In case we might support RDMA, don't allow qede to be greedy * with the L2 contexts. Allow for 64 queues [rx, tx, xdp] per hwfn. */ @@ -926,6 +929,18 @@ static int qed_slowpath_start(struct qed_dev *cdev, goto err; } +#ifdef CONFIG_RFS_ACCEL + if (cdev->num_hwfns == 1) { + p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev)); + if (p_ptt) { + QED_LEADING_HWFN(cdev)->p_arfs_ptt = p_ptt; + } else { + DP_NOTICE(cdev, + "Failed to acquire PTT for aRFS\n"); + goto err; + } + } +#endif p_ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev)); if (p_ptt) { QED_LEADING_HWFN(cdev)->p_ptp_ptt = p_ptt; @@ -1032,6 +1047,12 @@ err: if (IS_PF(cdev)) release_firmware(cdev->firmware); +#ifdef CONFIG_RFS_ACCEL + if (IS_PF(cdev) && (cdev->num_hwfns == 1) && + QED_LEADING_HWFN(cdev)->p_arfs_ptt) + qed_ptt_release(QED_LEADING_HWFN(cdev), + QED_LEADING_HWFN(cdev)->p_arfs_ptt); +#endif if (IS_PF(cdev) && QED_LEADING_HWFN(cdev)->p_ptp_ptt) qed_ptt_release(QED_LEADING_HWFN(cdev), QED_LEADING_HWFN(cdev)->p_ptp_ptt); @@ -1049,6 +1070,11 @@ static int qed_slowpath_stop(struct qed_dev *cdev) qed_ll2_dealloc_if(cdev); if (IS_PF(cdev)) { +#ifdef CONFIG_RFS_ACCEL + if (cdev->num_hwfns == 1) + qed_ptt_release(QED_LEADING_HWFN(cdev), + QED_LEADING_HWFN(cdev)->p_arfs_ptt); +#endif qed_ptt_release(QED_LEADING_HWFN(cdev), QED_LEADING_HWFN(cdev)->p_ptp_ptt); qed_free_stream_mem(cdev); |