diff options
| author | Selvin Xavier <selvin.xavier@broadcom.com> | 2017-06-29 12:28:15 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-07-24 08:45:12 -0400 |
| commit | f218d67ef00431728ab7317e829006d00ecd5ca4 (patch) | |
| tree | 4868296098c26b34fa57c563675154ad82585f5b /drivers/infiniband/hw/bnxt_re/qplib_rcfw.h | |
| parent | 5fac5b1b297fe1702f4c65d3b16aefb7d52967ab (diff) | |
| download | linux-f218d67ef00431728ab7317e829006d00ecd5ca4.tar.bz2 | |
RDMA/bnxt_re: Allow posting when QPs are in error
This patch allows driver to post send and receive
requests on QPs which are in error state.
Instead of flushing the QP in the context of polling
error CQEs, the QPs will be added to a flush list
maintained per CQ. QP state is moved to error.
QP is added to flush list if the user moves it
to error state using modify_qp also. After polling the HW
CQ in poll_cq routine, this flush list is traversed
and driver completes work requests on each QP in the flush
list, till the budget expires. The QP is moved out of
flush list during QP destroy or during modify_QP to RESET.
When ULPs post Work Requests while QP is in error state,
driver will store the ULP data and then increment the
QP producer s/w index, without ringing doorbell. It then
schedules a worker to invoke the CQ handler since the
interrupts wont be generated from the HW for this request.
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_rcfw.h')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_rcfw.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h index 09ce121770cd..0ed312f17c8d 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h @@ -148,6 +148,11 @@ struct bnxt_qplib_rcfw_sbuf { u32 size; }; +struct bnxt_qplib_qp_node { + u32 qp_id; /* QP id */ + void *qp_handle; /* ptr to qplib_qp */ +}; + /* RCFW Communication Channels */ struct bnxt_qplib_rcfw { struct pci_dev *pdev; @@ -181,11 +186,13 @@ struct bnxt_qplib_rcfw { /* Actual Cmd and Resp Queues */ struct bnxt_qplib_hwq cmdq; struct bnxt_qplib_crsq *crsqe_tbl; + int qp_tbl_size; + struct bnxt_qplib_qp_node *qp_tbl; }; void bnxt_qplib_free_rcfw_channel(struct bnxt_qplib_rcfw *rcfw); int bnxt_qplib_alloc_rcfw_channel(struct pci_dev *pdev, - struct bnxt_qplib_rcfw *rcfw); + struct bnxt_qplib_rcfw *rcfw, int qp_tbl_sz); void bnxt_qplib_disable_rcfw_channel(struct bnxt_qplib_rcfw *rcfw); int bnxt_qplib_enable_rcfw_channel(struct pci_dev *pdev, struct bnxt_qplib_rcfw *rcfw, @@ -207,4 +214,5 @@ int bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw, int bnxt_qplib_deinit_rcfw(struct bnxt_qplib_rcfw *rcfw); int bnxt_qplib_init_rcfw(struct bnxt_qplib_rcfw *rcfw, struct bnxt_qplib_ctx *ctx, int is_virtfn); +void bnxt_qplib_mark_qp_error(void *qp_handle); #endif /* __BNXT_QPLIB_RCFW_H__ */ |