From patchwork Wed Nov 23 19:40:59 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 9444155 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 735336075F for ; Wed, 23 Nov 2016 19:42:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7C7EC279D1 for ; Wed, 23 Nov 2016 19:42:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7086B27C7A; Wed, 23 Nov 2016 19:42:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C394D279D1 for ; Wed, 23 Nov 2016 19:42:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934439AbcKWTmQ (ORCPT ); Wed, 23 Nov 2016 14:42:16 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:49481 "EHLO szxga01-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933914AbcKWTmP (ORCPT ); Wed, 23 Nov 2016 14:42:15 -0500 Received: from 172.24.1.36 (EHLO SZXEML423-HUB.china.huawei.com) ([172.24.1.36]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DVO55773; Thu, 24 Nov 2016 03:42:11 +0800 (CST) Received: from S00293818-DELL1.china.huawei.com (10.203.181.153) by SZXEML423-HUB.china.huawei.com (10.82.67.154) with Microsoft SMTP Server id 14.3.235.1; Thu, 24 Nov 2016 03:42:03 +0800 From: Salil Mehta To: CC: , , , , , , , , , Subject: [PATCH V3 for-next 01/11] IB/hns: Add the interface for querying QP1 Date: Wed, 23 Nov 2016 19:40:59 +0000 Message-ID: <20161123194109.420760-2-salil.mehta@huawei.com> X-Mailer: git-send-email 2.8.3 In-Reply-To: <20161123194109.420760-1-salil.mehta@huawei.com> References: <20161123194109.420760-1-salil.mehta@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.203.181.153] X-CFilter-Loop: Reflected Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Lijun Ou In old code, It only added the interface for querying non-specific QP. This patch mainly adds an interface for querying QP1. Signed-off-by: Lijun Ou Reviewed-by: Wei Hu (Xavier) Signed-off-by: Salil Mehta --- Change Log Patch V2: Addressed the comment provided by Anurup M Link: https://patchwork.kernel.org/patch/9412855/ Patch V1: Initial Submit --- drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 83 +++++++++++++++++++++++++++- drivers/infiniband/hw/hns/hns_roce_hw_v1.h | 6 +- 2 files changed, 86 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c index 71232e5..7485514 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -2630,8 +2630,78 @@ static int hns_roce_v1_query_qpc(struct hns_roce_dev *hr_dev, return ret; } -int hns_roce_v1_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, - int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) +static int hns_roce_v1_q_sqp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, + struct ib_qp_init_attr *qp_init_attr) +{ + struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + struct hns_roce_sqp_context context; + u32 addr; + + mutex_lock(&hr_qp->mutex); + + if (hr_qp->state == IB_QPS_RESET) { + qp_attr->qp_state = IB_QPS_RESET; + goto done; + } + + addr = ROCEE_QP1C_CFG0_0_REG + + hr_qp->port * sizeof(struct hns_roce_sqp_context); + context.qp1c_bytes_4 = roce_read(hr_dev, addr); + context.sq_rq_bt_l = roce_read(hr_dev, addr + 1); + context.qp1c_bytes_12 = roce_read(hr_dev, addr + 2); + context.qp1c_bytes_16 = roce_read(hr_dev, addr + 3); + context.qp1c_bytes_20 = roce_read(hr_dev, addr + 4); + context.cur_rq_wqe_ba_l = roce_read(hr_dev, addr + 5); + context.qp1c_bytes_28 = roce_read(hr_dev, addr + 6); + context.qp1c_bytes_32 = roce_read(hr_dev, addr + 7); + context.cur_sq_wqe_ba_l = roce_read(hr_dev, addr + 8); + context.qp1c_bytes_40 = roce_read(hr_dev, addr + 9); + + hr_qp->state = roce_get_field(context.qp1c_bytes_4, + QP1C_BYTES_4_QP_STATE_M, + QP1C_BYTES_4_QP_STATE_S); + qp_attr->qp_state = hr_qp->state; + qp_attr->path_mtu = IB_MTU_256; + qp_attr->path_mig_state = IB_MIG_ARMED; + qp_attr->qkey = QKEY_VAL; + qp_attr->rq_psn = 0; + qp_attr->sq_psn = 0; + qp_attr->dest_qp_num = 1; + qp_attr->qp_access_flags = 6; + + qp_attr->pkey_index = roce_get_field(context.qp1c_bytes_20, + QP1C_BYTES_20_PKEY_IDX_M, + QP1C_BYTES_20_PKEY_IDX_S); + qp_attr->port_num = hr_qp->port + 1; + qp_attr->sq_draining = 0; + qp_attr->max_rd_atomic = 0; + qp_attr->max_dest_rd_atomic = 0; + qp_attr->min_rnr_timer = 0; + qp_attr->timeout = 0; + qp_attr->retry_cnt = 0; + qp_attr->rnr_retry = 0; + qp_attr->alt_timeout = 0; + +done: + qp_attr->cur_qp_state = qp_attr->qp_state; + qp_attr->cap.max_recv_wr = hr_qp->rq.wqe_cnt; + qp_attr->cap.max_recv_sge = hr_qp->rq.max_gs; + qp_attr->cap.max_send_wr = hr_qp->sq.wqe_cnt; + qp_attr->cap.max_send_sge = hr_qp->sq.max_gs; + qp_attr->cap.max_inline_data = 0; + qp_init_attr->cap = qp_attr->cap; + qp_init_attr->create_flags = 0; + + mutex_unlock(&hr_qp->mutex); + + return 0; +} + +static int hns_roce_v1_q_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, + struct ib_qp_init_attr *qp_init_attr) { struct hns_roce_dev *hr_dev = to_hr_dev(ibqp->device); struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); @@ -2767,6 +2837,15 @@ int hns_roce_v1_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, return ret; } +int hns_roce_v1_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, + int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr) +{ + struct hns_roce_qp *hr_qp = to_hr_qp(ibqp); + + return hr_qp->doorbell_qpn <= 1 ? + hns_roce_v1_q_sqp(ibqp, qp_attr, qp_attr_mask, qp_init_attr) : + hns_roce_v1_q_qp(ibqp, qp_attr, qp_attr_mask, qp_init_attr); +} static void hns_roce_v1_destroy_qp_common(struct hns_roce_dev *hr_dev, struct hns_roce_qp *hr_qp, int is_user) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.h b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h index 539b0a3b..2e1878b 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.h +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.h @@ -480,13 +480,17 @@ struct hns_roce_sqp_context { u32 qp1c_bytes_12; u32 qp1c_bytes_16; u32 qp1c_bytes_20; - u32 qp1c_bytes_28; u32 cur_rq_wqe_ba_l; + u32 qp1c_bytes_28; u32 qp1c_bytes_32; u32 cur_sq_wqe_ba_l; u32 qp1c_bytes_40; }; +#define QP1C_BYTES_4_QP_STATE_S 0 +#define QP1C_BYTES_4_QP_STATE_M \ + (((1UL << 3) - 1) << QP1C_BYTES_4_QP_STATE_S) + #define QP1C_BYTES_4_SQ_WQE_SHIFT_S 8 #define QP1C_BYTES_4_SQ_WQE_SHIFT_M \ (((1UL << 4) - 1) << QP1C_BYTES_4_SQ_WQE_SHIFT_S)