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path: root/drivers/infiniband/hw/nes/nes_hw.c
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Diffstat (limited to 'drivers/infiniband/hw/nes/nes_hw.c')
-rw-r--r--drivers/infiniband/hw/nes/nes_hw.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index ce7f53833577..925075557dc2 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -1899,9 +1899,14 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
u16 wqe_fragment_index;
u64 wqe_frag;
u32 cqp_head;
+ u32 wqm_cfg0;
unsigned long flags;
int ret;
+ /* clear wqe stall before destroying NIC QP */
+ wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
+ nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
+
/* Free remaining NIC receive buffers */
while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
nic_rqe = &nesvnic->nic.rq_vbase[nesvnic->nic.rq_tail];
@@ -2020,6 +2025,9 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
nesvnic->nic_pbase);
+
+ /* restore old wqm_cfg0 value */
+ nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0);
}
/**