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authorShiraz Saleem <shiraz.saleem@intel.com>2017-12-22 18:46:59 +0300
committerJason Gunthorpe <jgg@mellanox.com>2017-12-22 23:39:20 +0300
commitdf8b13a1b23356d01dfc4647a5629cdb0f4ce566 (patch)
treea5a2daf56535260f61832959f124cbd5999c5eb2
parent3020f252c3aa7bd59c5df38671f1ef13a0426e40 (diff)
downloadlinux-df8b13a1b23356d01dfc4647a5629cdb0f4ce566.tar.xz
i40iw: Fix sequence number for the first partial FPDU
Partial FPDU processing is broken as the sequence number for the first partial FPDU is wrong due to incorrect Q2 buffer offset. The offset should be 64 rather than 16. Fixes: 786c6adb3a94 ("i40iw: add puda code") Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
-rw-r--r--drivers/infiniband/hw/i40iw/i40iw_d.h1
-rw-r--r--drivers/infiniband/hw/i40iw/i40iw_puda.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/i40iw/i40iw_d.h b/drivers/infiniband/hw/i40iw/i40iw_d.h
index 65ec39e3746b..b8565872d744 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_d.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_d.h
@@ -97,6 +97,7 @@
#define RDMA_OPCODE_MASK 0x0f
#define RDMA_READ_REQ_OPCODE 1
#define Q2_BAD_FRAME_OFFSET 72
+#define Q2_FPSN_OFFSET 64
#define CQE_MAJOR_DRV 0x8000
#define I40IW_TERM_SENT 0x01
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c b/drivers/infiniband/hw/i40iw/i40iw_puda.c
index 796a815b53fd..f64b6700f43f 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -1378,7 +1378,7 @@ static void i40iw_ieq_handle_exception(struct i40iw_puda_rsrc *ieq,
u32 *hw_host_ctx = (u32 *)qp->hw_host_ctx;
u32 rcv_wnd = hw_host_ctx[23];
/* first partial seq # in q2 */
- u32 fps = qp->q2_buf[16];
+ u32 fps = *(u32 *)(qp->q2_buf + Q2_FPSN_OFFSET);
struct list_head *rxlist = &pfpdu->rxlist;
struct list_head *plist;