From patchwork Wed Nov 23 19:41:07 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Salil Mehta X-Patchwork-Id: 83754 Delivered-To: patch@linaro.org Received: by 10.140.97.165 with SMTP id m34csp2820098qge; Wed, 23 Nov 2016 11:43:17 -0800 (PST) X-Received: by 10.84.213.150 with SMTP id g22mr9977763pli.11.1479930197267; Wed, 23 Nov 2016 11:43:17 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 1si6704327plp.216.2016.11.23.11.43.17; Wed, 23 Nov 2016 11:43:17 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of netdev-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935215AbcKWTnA (ORCPT + 5 others); Wed, 23 Nov 2016 14:43:00 -0500 Received: from szxga03-in.huawei.com ([119.145.14.66]:65343 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935089AbcKWTm5 (ORCPT ); Wed, 23 Nov 2016 14:42:57 -0500 Received: from 172.24.1.137 (EHLO SZXEML423-HUB.china.huawei.com) ([172.24.1.137]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CLU63766; Thu, 24 Nov 2016 03:42:42 +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 03:42:29 +0800 From: Salil Mehta To: CC: , , , , , , , , , Subject: [PATCH V3 for-next 09/11] IB/hns: Change qpn allocation to round-robin mode. Date: Wed, 23 Nov 2016 19:41:07 +0000 Message-ID: <20161123194109.420760-10-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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: "Wei Hu (Xavier)" When using CM to establish connections, qp number that was freed just now will be rejected by ib core. To fix these problem, We change qpn allocation to round-robin mode. We added the round-robin mode for allocating resources using bitmap. We use round-robin mode for qp number and non round-robing mode for other resources like cq number, pd number etc. Signed-off-by: Wei Hu (Xavier) Signed-off-by: Salil Mehta --- drivers/infiniband/hw/hns/hns_roce_alloc.c | 11 +++++++---- drivers/infiniband/hw/hns/hns_roce_cq.c | 4 ++-- drivers/infiniband/hw/hns/hns_roce_device.h | 9 +++++++-- drivers/infiniband/hw/hns/hns_roce_mr.c | 2 +- drivers/infiniband/hw/hns/hns_roce_pd.c | 5 +++-- drivers/infiniband/hw/hns/hns_roce_qp.c | 2 +- 6 files changed, 21 insertions(+), 12 deletions(-) -- 1.7.9.5 diff --git a/drivers/infiniband/hw/hns/hns_roce_alloc.c b/drivers/infiniband/hw/hns/hns_roce_alloc.c index 863a17a..605962f 100644 --- a/drivers/infiniband/hw/hns/hns_roce_alloc.c +++ b/drivers/infiniband/hw/hns/hns_roce_alloc.c @@ -61,9 +61,10 @@ int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj) return ret; } -void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj) +void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj, + int rr) { - hns_roce_bitmap_free_range(bitmap, obj, 1); + hns_roce_bitmap_free_range(bitmap, obj, 1, rr); } int hns_roce_bitmap_alloc_range(struct hns_roce_bitmap *bitmap, int cnt, @@ -106,7 +107,8 @@ int hns_roce_bitmap_alloc_range(struct hns_roce_bitmap *bitmap, int cnt, } void hns_roce_bitmap_free_range(struct hns_roce_bitmap *bitmap, - unsigned long obj, int cnt) + unsigned long obj, int cnt, + int rr) { int i; @@ -116,7 +118,8 @@ void hns_roce_bitmap_free_range(struct hns_roce_bitmap *bitmap, for (i = 0; i < cnt; i++) clear_bit(obj + i, bitmap->table); - bitmap->last = min(bitmap->last, obj); + if (!rr) + bitmap->last = min(bitmap->last, obj); bitmap->top = (bitmap->top + bitmap->max + bitmap->reserved_top) & bitmap->mask; spin_unlock(&bitmap->lock); diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index 461a273..c9f6c3d 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -166,7 +166,7 @@ static int hns_roce_cq_alloc(struct hns_roce_dev *hr_dev, int nent, hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); err_out: - hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn); + hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn, BITMAP_NO_RR); return ret; } @@ -204,7 +204,7 @@ static void hns_roce_free_cq(struct hns_roce_dev *hr_dev, spin_unlock_irq(&cq_table->lock); hns_roce_table_put(hr_dev, &cq_table->table, hr_cq->cqn); - hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn); + hns_roce_bitmap_free(&cq_table->bitmap, hr_cq->cqn, BITMAP_NO_RR); } static int hns_roce_ib_get_cq_umem(struct hns_roce_dev *hr_dev, diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index 7242b14..593a42a 100644 --- a/drivers/infiniband/hw/hns/hns_roce_device.h +++ b/drivers/infiniband/hw/hns/hns_roce_device.h @@ -72,6 +72,9 @@ #define HNS_ROCE_MAX_GID_NUM 16 #define HNS_ROCE_GID_SIZE 16 +#define BITMAP_NO_RR 0 +#define BITMAP_RR 1 + #define MR_TYPE_MR 0x00 #define MR_TYPE_DMA 0x03 @@ -661,7 +664,8 @@ int hns_roce_buf_write_mtt(struct hns_roce_dev *hr_dev, void hns_roce_cleanup_qp_table(struct hns_roce_dev *hr_dev); int hns_roce_bitmap_alloc(struct hns_roce_bitmap *bitmap, unsigned long *obj); -void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj); +void hns_roce_bitmap_free(struct hns_roce_bitmap *bitmap, unsigned long obj, + int rr); int hns_roce_bitmap_init(struct hns_roce_bitmap *bitmap, u32 num, u32 mask, u32 reserved_bot, u32 resetrved_top); void hns_roce_bitmap_cleanup(struct hns_roce_bitmap *bitmap); @@ -669,7 +673,8 @@ int hns_roce_bitmap_init(struct hns_roce_bitmap *bitmap, u32 num, u32 mask, int hns_roce_bitmap_alloc_range(struct hns_roce_bitmap *bitmap, int cnt, int align, unsigned long *obj); void hns_roce_bitmap_free_range(struct hns_roce_bitmap *bitmap, - unsigned long obj, int cnt); + unsigned long obj, int cnt, + int rr); struct ib_ah *hns_roce_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); int hns_roce_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr); diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index a5bd645..9b8a1ad 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -289,7 +289,7 @@ static void hns_roce_mr_free(struct hns_roce_dev *hr_dev, } hns_roce_bitmap_free(&hr_dev->mr_table.mtpt_bitmap, - key_to_hw_index(mr->key)); + key_to_hw_index(mr->key), BITMAP_NO_RR); } static int hns_roce_mr_enable(struct hns_roce_dev *hr_dev, diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c index 05db7d5..a64500f 100644 --- a/drivers/infiniband/hw/hns/hns_roce_pd.c +++ b/drivers/infiniband/hw/hns/hns_roce_pd.c @@ -40,7 +40,7 @@ static int hns_roce_pd_alloc(struct hns_roce_dev *hr_dev, unsigned long *pdn) static void hns_roce_pd_free(struct hns_roce_dev *hr_dev, unsigned long pdn) { - hns_roce_bitmap_free(&hr_dev->pd_bitmap, pdn); + hns_roce_bitmap_free(&hr_dev->pd_bitmap, pdn, BITMAP_NO_RR); } int hns_roce_init_pd_table(struct hns_roce_dev *hr_dev) @@ -121,7 +121,8 @@ int hns_roce_uar_alloc(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar) void hns_roce_uar_free(struct hns_roce_dev *hr_dev, struct hns_roce_uar *uar) { - hns_roce_bitmap_free(&hr_dev->uar_table.bitmap, uar->index); + hns_roce_bitmap_free(&hr_dev->uar_table.bitmap, uar->index, + BITMAP_NO_RR); } int hns_roce_init_uar_table(struct hns_roce_dev *hr_dev) diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index e86dd8d..4775b5c 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -250,7 +250,7 @@ void hns_roce_release_range_qp(struct hns_roce_dev *hr_dev, int base_qpn, if (base_qpn < SQP_NUM) return; - hns_roce_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt); + hns_roce_bitmap_free_range(&qp_table->bitmap, base_qpn, cnt, BITMAP_RR); } static int hns_roce_set_rq_size(struct hns_roce_dev *hr_dev,