Commit a74c28e2 authored by wenglianfa's avatar wenglianfa Committed by Chengchang Tang
Browse files

RDMA/hns: Use one CQ bank per context for HIP09 

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IATE99



----------------------------------------------------------------------

The modification of
commit 754c3a8a ("RDMA/hns: Use one CQ bank per context")
should be applied to HIP09 due to HW restriction

Fixes: 754c3a8a ("RDMA/hns: Use one CQ bank per context")
Signed-off-by: default avatarwenglianfa <wenglianfa@huawei.com>
Signed-off-by: default avatarXinghai Cen <cenxinghai@h-partners.com>
parent 7643ccef

drivers/infiniband/hw/hns/hns_roce_cq.c

+4 −4
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ void hns_roce_put_cq_bankid_for_uctx(struct hns_roce_ucontext *uctx) 
	struct hns_roce_dev *hr_dev = to_hr_dev(uctx->ibucontext.device);

	struct hns_roce_cq_table *cq_table = &hr_dev->cq_table;



	if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP10)

	if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP09)

		return;



	mutex_lock(&cq_table->bank_mutex);
@@ -58,7 +58,7 @@ void hns_roce_get_cq_bankid_for_uctx(struct hns_roce_ucontext *uctx) 
	u8 bankid = 0;

	u8 i;



	if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP10)

	if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP09)

		return;



	mutex_lock(&cq_table->bank_mutex);
@@ -98,8 +98,8 @@ static u8 select_cq_bankid(struct hns_roce_dev *hr_dev, struct hns_roce_bank *ba 
	struct hns_roce_ucontext *uctx = udata ?

		rdma_udata_to_drv_context(udata, struct hns_roce_ucontext,

					  ibucontext) : NULL;

	/* only apply for HIP10 now, and use bank 0 for kernel */

	if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP10)

	/* only apply for HIP09 and HIP10 now, and use bank 0 for kernel */

	if (hr_dev->pci_dev->revision >= PCI_REVISION_ID_HIP09)

		return uctx ? uctx->cq_bank_id : 0;



	return get_least_load_bankid_for_cq(bank);