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-rw-r--r--drivers/infiniband/hw/nes/nes.h15
-rw-r--r--drivers/infiniband/hw/nes/nes_cm.c10
2 files changed, 21 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/nes/nes.h b/drivers/infiniband/hw/nes/nes.h
index fd57e8a1582f..a48b288618ec 100644
--- a/drivers/infiniband/hw/nes/nes.h
+++ b/drivers/infiniband/hw/nes/nes.h
@@ -285,6 +285,21 @@ struct nes_device {
285}; 285};
286 286
287 287
288static inline __le32 get_crc_value(struct nes_v4_quad *nes_quad)
289{
290 u32 crc_value;
291 crc_value = crc32c(~0, (void *)nes_quad, sizeof (struct nes_v4_quad));
292
293 /*
294 * With commit ef19454b ("[LIB] crc32c: Keep intermediate crc
295 * state in cpu order"), behavior of crc32c changes on
296 * big-endian platforms. Our algorithm expects the previous
297 * behavior; otherwise we have RDMA connection establishment
298 * issue on big-endian.
299 */
300 return cpu_to_le32(crc_value);
301}
302
288static inline void 303static inline void
289set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value) 304set_wqe_64bit_value(__le32 *wqe_words, u32 index, u64 value)
290{ 305{
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index 6c298aa9ab05..39adb267fb15 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -2320,6 +2320,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
2320 struct iw_cm_event cm_event; 2320 struct iw_cm_event cm_event;
2321 struct nes_hw_qp_wqe *wqe; 2321 struct nes_hw_qp_wqe *wqe;
2322 struct nes_v4_quad nes_quad; 2322 struct nes_v4_quad nes_quad;
2323 u32 crc_value;
2323 int ret; 2324 int ret;
2324 2325
2325 ibqp = nes_get_qp(cm_id->device, conn_param->qpn); 2326 ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
@@ -2436,8 +2437,8 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
2436 nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; 2437 nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
2437 2438
2438 /* Produce hash key */ 2439 /* Produce hash key */
2439 nesqp->hte_index = cpu_to_be32( 2440 crc_value = get_crc_value(&nes_quad);
2440 crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff); 2441 nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
2441 nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n", 2442 nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n",
2442 nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask); 2443 nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask);
2443 2444
@@ -2751,6 +2752,7 @@ void cm_event_connected(struct nes_cm_event *event)
2751 struct iw_cm_event cm_event; 2752 struct iw_cm_event cm_event;
2752 struct nes_hw_qp_wqe *wqe; 2753 struct nes_hw_qp_wqe *wqe;
2753 struct nes_v4_quad nes_quad; 2754 struct nes_v4_quad nes_quad;
2755 u32 crc_value;
2754 int ret; 2756 int ret;
2755 2757
2756 /* get all our handles */ 2758 /* get all our handles */
@@ -2828,8 +2830,8 @@ void cm_event_connected(struct nes_cm_event *event)
2828 nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port; 2830 nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
2829 2831
2830 /* Produce hash key */ 2832 /* Produce hash key */
2831 nesqp->hte_index = cpu_to_be32( 2833 crc_value = get_crc_value(&nes_quad);
2832 crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff); 2834 nesqp->hte_index = cpu_to_be32(crc_value ^ 0xffffffff);
2833 nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n", 2835 nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n",
2834 nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask); 2836 nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask);
2835 2837