Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband update from Roland Dreier:
 "Main batch of InfiniBand/RDMA changes for 3.9:

   - SRP error handling fixes from Bart Van Assche

   - Implementation of memory windows for mlx4 from Shani Michaeli

   - Lots of cxgb4 HW driver fixes from Vipul Pandya

   - Make iSER work for virtual functions, other fixes from Or Gerlitz

   - Fix for bug in qib HW driver from Mike Marciniszyn

   - IPoIB fixes from me, Itai Garbi, Shlomo Pongratz, Yan Burman

   - Various cleanups and warning fixes from Julia Lawall, Paul Bolle,
     Wei Yongjun"

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (41 commits)
  IB/mlx4: Advertise MW support
  IB/mlx4: Support memory window binding
  mlx4: Implement memory windows allocation and deallocation
  mlx4_core: Enable memory windows in {INIT, QUERY}_HCA
  mlx4_core: Disable memory windows for virtual functions
  IPoIB: Free ipoib neigh on path record failure so path rec queries are retried
  IB/srp: Fail I/O requests if the transport is offline
  IB/srp: Avoid endless SCSI error handling loop
  IB/srp: Avoid sending a task management function needlessly
  IB/srp: Track connection state properly
  IB/mlx4: Remove redundant NULL check before kfree
  IB/mlx4: Fix compiler warning about uninitialized 'vlan' variable
  IB/mlx4: Convert is_xxx variables in build_mlx_header() to bool
  IB/iser: Enable iser when FMRs are not supported
  IB/iser: Avoid error prints on EAGAIN registration failures
  IB/iser: Use proper define for the commands per LUN value advertised to SCSI ML
  IB/uverbs: Implement memory windows support in uverbs
  IB/core: Add "type 2" memory windows support
  mlx4_core: Propagate MR deregistration failures to caller
  mlx4_core: Rename MPT-related functions to have mpt_ prefix
  ...

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 38b62c78d5da..50917eb3013e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -762,15 +762,19 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
 	u64	flags;
 	int	err = 0;
 	u8	field;
+	u32	bmme_flags;
 
 	err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
 			   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
 	if (err)
 		return err;
 
-	/* add port mng change event capability unconditionally to slaves */
+	/* add port mng change event capability and disable mw type 1
+	 * unconditionally to slaves
+	 */
 	MLX4_GET(flags, outbox->buf, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
 	flags |= MLX4_DEV_CAP_FLAG_PORT_MNG_CHG_EV;
+	flags &= ~MLX4_DEV_CAP_FLAG_MEM_WINDOW;
 	MLX4_PUT(outbox->buf, flags, QUERY_DEV_CAP_EXT_FLAGS_OFFSET);
 
 	/* For guests, report Blueflame disabled */
@@ -778,6 +782,11 @@ int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
 	field &= 0x7f;
 	MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
 
+	/* For guests, disable mw type 2 */
+	MLX4_GET(bmme_flags, outbox, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
+	bmme_flags &= ~MLX4_BMME_FLAG_TYPE_2_WIN;
+	MLX4_PUT(outbox->buf, bmme_flags, QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
+
 	return 0;
 }
 
@@ -1203,6 +1212,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 #define  INIT_HCA_FS_IB_NUM_ADDRS_OFFSET  (INIT_HCA_FS_PARAM_OFFSET + 0x26)
 #define INIT_HCA_TPT_OFFSET		 0x0f0
 #define	 INIT_HCA_DMPT_BASE_OFFSET	 (INIT_HCA_TPT_OFFSET + 0x00)
+#define  INIT_HCA_TPT_MW_OFFSET		 (INIT_HCA_TPT_OFFSET + 0x08)
 #define	 INIT_HCA_LOG_MPT_SZ_OFFSET	 (INIT_HCA_TPT_OFFSET + 0x0b)
 #define	 INIT_HCA_MTT_BASE_OFFSET	 (INIT_HCA_TPT_OFFSET + 0x10)
 #define	 INIT_HCA_CMPT_BASE_OFFSET	 (INIT_HCA_TPT_OFFSET + 0x18)
@@ -1319,6 +1329,7 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 	/* TPT attributes */
 
 	MLX4_PUT(inbox, param->dmpt_base,  INIT_HCA_DMPT_BASE_OFFSET);
+	MLX4_PUT(inbox, param->mw_enabled, INIT_HCA_TPT_MW_OFFSET);
 	MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
 	MLX4_PUT(inbox, param->mtt_base,   INIT_HCA_MTT_BASE_OFFSET);
 	MLX4_PUT(inbox, param->cmpt_base,  INIT_HCA_CMPT_BASE_OFFSET);
@@ -1415,6 +1426,7 @@ int mlx4_QUERY_HCA(struct mlx4_dev *dev,
 	/* TPT attributes */
 
 	MLX4_GET(param->dmpt_base,  outbox, INIT_HCA_DMPT_BASE_OFFSET);
+	MLX4_GET(param->mw_enabled, outbox, INIT_HCA_TPT_MW_OFFSET);
 	MLX4_GET(param->log_mpt_sz, outbox, INIT_HCA_LOG_MPT_SZ_OFFSET);
 	MLX4_GET(param->mtt_base,   outbox, INIT_HCA_MTT_BASE_OFFSET);
 	MLX4_GET(param->cmpt_base,  outbox, INIT_HCA_CMPT_BASE_OFFSET);