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| author |   Wei Hu (Xavier) <xavier.huwei@huawei.com> | 2016-11-23 19:41:07 +0000 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-12-03 14:20:42 -0500 |
| commit | 5e6ff78a229c2f231f2f743b017987621e469858 (patch) | |
| tree | fbb406e838608a9847c2ef56d8a36b56460eca17 /drivers/infiniband/hw/hns/hns_roce_device.h | |
| parent | IB/hns: Modify query info named port_num when querying RC QP (diff) | |
| download | linux-dev-5e6ff78a229c2f231f2f743b017987621e469858.tar.xz linux-dev-5e6ff78a229c2f231f2f743b017987621e469858.zip | |
IB/hns: Change qpn allocation to round-robin mode.
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) <xavier.huwei@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_device.h')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_device.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h index 7242b1438873..593a42a198f6 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 @@ void hns_roce_cleanup_cq_table(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 @@ void hns_roce_cleanup_bitmap(struct hns_roce_dev *hr_dev); 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); |