qed: aRFS infrastructure support

[linux-2.6-block.git] / drivers / net / ethernet / qlogic / qed / qed_main.c

diff --git a/drivers/net/ethernet/qlogic/qed/qed_main.c b/drivers/net/ethernet/qlogic/qed/qed_main.c
index 029f431e89ecaa01343c8b4ae523f64ec38fffde..da562cf8a965cd0589b50aabb754c3c786e83cd1 100644 (file)
--- 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);