From: Mintz, Yuval Date: Thu, 23 Mar 2017 13:50:20 +0000 (+0200) Subject: qed: Reserve VF feature before PF X-Git-Tag: v4.12-rc1~108^2~348^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dec26533ae5b00f3f15759bc195cae6fe89a1f42;p=thirdparty%2Fkernel%2Flinux.git qed: Reserve VF feature before PF Align the driver feature distribution with the flow utilized by the management firmware - first reserve L2 queues for VFs and use all the remaining for the PF. The current distribution might lead to PFs with an enormous amount of queues, but at the same time leave us with insufficient resources for starting all VFs. Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index 6bdac4f916507..11e45f0f7779c 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -1565,17 +1565,22 @@ static void qed_hw_set_feat(struct qed_hwfn *p_hwfn) non_l2_sbs = feat_num[QED_RDMA_CNQ]; } - feat_num[QED_PF_L2_QUE] = min_t(u32, - RESC_NUM(p_hwfn, QED_SB) - - non_l2_sbs, - RESC_NUM(p_hwfn, QED_L2_QUEUE)); - - memset(&sb_cnt_info, 0, sizeof(sb_cnt_info)); - qed_int_get_num_sbs(p_hwfn, &sb_cnt_info); - feat_num[QED_VF_L2_QUE] = - min_t(u32, - RESC_NUM(p_hwfn, QED_L2_QUEUE) - - FEAT_NUM(p_hwfn, QED_PF_L2_QUE), sb_cnt_info.sb_iov_cnt); + if (p_hwfn->hw_info.personality == QED_PCI_ETH_ROCE || + p_hwfn->hw_info.personality == QED_PCI_ETH) { + /* Start by allocating VF queues, then PF's */ + memset(&sb_cnt_info, 0, sizeof(sb_cnt_info)); + qed_int_get_num_sbs(p_hwfn, &sb_cnt_info); + feat_num[QED_VF_L2_QUE] = min_t(u32, + RESC_NUM(p_hwfn, QED_L2_QUEUE), + sb_cnt_info.sb_iov_cnt); + feat_num[QED_PF_L2_QUE] = min_t(u32, + RESC_NUM(p_hwfn, QED_SB) - + non_l2_sbs, + RESC_NUM(p_hwfn, + QED_L2_QUEUE) - + FEAT_NUM(p_hwfn, + QED_VF_L2_QUE)); + } DP_VERBOSE(p_hwfn, NETIF_MSG_PROBE,