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

Pull InfiniBand/RDMA updates from Roland Dreier:
 - Re-enable on-demand paging changes with stable ABI
 - Fairly large set of ocrdma HW driver fixes
 - Some qib HW driver fixes
 - Other miscellaneous changes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (43 commits)
  IB/qib: Add blank line after declaration
  IB/qib: Fix checkpatch warnings
  IB/mlx5: Enable the ODP capability query verb
  IB/core: Add on demand paging caps to ib_uverbs_ex_query_device
  IB/core: Add support for extended query device caps
  RDMA/cxgb4: Don't hang threads forever waiting on WR replies
  RDMA/ocrdma: Fix off by one in ocrdma_query_gid()
  RDMA/ocrdma: Use unsigned for bit index
  RDMA/ocrdma: Help gcc generate better code for ocrdma_srq_toggle_bit
  RDMA/ocrdma: Update the ocrdma module version string
  RDMA/ocrdma: set vlan present bit for user AH
  RDMA/ocrdma: remove reference of ocrdma_dev out of ocrdma_qp structure
  RDMA/ocrdma: Add support for interrupt moderation
  RDMA/ocrdma: Honor return value of ocrdma_resolve_dmac
  RDMA/ocrdma: Allow expansion of the SQ CQEs via buddy CQ expansion of the QP
  RDMA/ocrdma: Discontinue support of RDMA-READ-WITH-INVALIDATE
  RDMA/ocrdma: Host crash on destroying device resources
  RDMA/ocrdma: Report correct state in ibv_query_qp
  RDMA/ocrdma: Debugfs enhancments for ocrdma driver
  RDMA/ocrdma: Report correct count of interrupt vectors while registering ocrdma device
  ...

1 files changed, 31 insertions, 7 deletions

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
index f3cc8c9e65ae..d812904f3984 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
@@ -29,19 +29,22 @@
 #include <net/netevent.h>
 
 #include <rdma/ib_addr.h>
+#include <rdma/ib_mad.h>
 
 #include "ocrdma.h"
 #include "ocrdma_verbs.h"
 #include "ocrdma_ah.h"
 #include "ocrdma_hw.h"
+#include "ocrdma_stats.h"
 
 #define OCRDMA_VID_PCP_SHIFT	0xD
 
 static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
-			struct ib_ah_attr *attr, union ib_gid *sgid, int pdid)
+			struct ib_ah_attr *attr, union ib_gid *sgid,
+			int pdid, bool *isvlan)
 {
 	int status = 0;
-	u16 vlan_tag; bool vlan_enabled = false;
+	u16 vlan_tag;
 	struct ocrdma_eth_vlan eth;
 	struct ocrdma_grh grh;
 	int eth_sz;
@@ -59,7 +62,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
 		vlan_tag |= (dev->sl & 0x07) << OCRDMA_VID_PCP_SHIFT;
 		eth.vlan_tag = cpu_to_be16(vlan_tag);
 		eth_sz = sizeof(struct ocrdma_eth_vlan);
-		vlan_enabled = true;
+		*isvlan = true;
 	} else {
 		eth.eth_type = cpu_to_be16(OCRDMA_ROCE_ETH_TYPE);
 		eth_sz = sizeof(struct ocrdma_eth_basic);
@@ -82,7 +85,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
 	/* Eth HDR */
 	memcpy(&ah->av->eth_hdr, &eth, eth_sz);
 	memcpy((u8 *)ah->av + eth_sz, &grh, sizeof(struct ocrdma_grh));
-	if (vlan_enabled)
+	if (*isvlan)
 		ah->av->valid |= OCRDMA_AV_VLAN_VALID;
 	ah->av->valid = cpu_to_le32(ah->av->valid);
 	return status;
@@ -91,6 +94,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
 struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr)
 {
 	u32 *ahid_addr;
+	bool isvlan = false;
 	int status;
 	struct ocrdma_ah *ah;
 	struct ocrdma_pd *pd = get_ocrdma_pd(ibpd);
@@ -127,15 +131,20 @@ struct ib_ah *ocrdma_create_ah(struct ib_pd *ibpd, struct ib_ah_attr *attr)
 		}
 	}
 
-	status = set_av_attr(dev, ah, attr, &sgid, pd->id);
+	status = set_av_attr(dev, ah, attr, &sgid, pd->id, &isvlan);
 	if (status)
 		goto av_conf_err;
 
 	/* if pd is for the user process, pass the ah_id to user space */
 	if ((pd->uctx) && (pd->uctx->ah_tbl.va)) {
 		ahid_addr = pd->uctx->ah_tbl.va + attr->dlid;
-		*ahid_addr = ah->id;
+		*ahid_addr = 0;
+		*ahid_addr |= ah->id & OCRDMA_AH_ID_MASK;
+		if (isvlan)
+			*ahid_addr |= (OCRDMA_AH_VLAN_VALID_MASK <<
+				       OCRDMA_AH_VLAN_VALID_SHIFT);
 	}
+
 	return &ah->ibah;
 
 av_conf_err:
@@ -191,5 +200,20 @@ int ocrdma_process_mad(struct ib_device *ibdev,
 		       struct ib_grh *in_grh,
 		       struct ib_mad *in_mad, struct ib_mad *out_mad)
 {
-	return IB_MAD_RESULT_SUCCESS;
+	int status;
+	struct ocrdma_dev *dev;
+
+	switch (in_mad->mad_hdr.mgmt_class) {
+	case IB_MGMT_CLASS_PERF_MGMT:
+		dev = get_ocrdma_dev(ibdev);
+		if (!ocrdma_pma_counters(dev, out_mad))
+			status = IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
+		else
+			status = IB_MAD_RESULT_SUCCESS;
+		break;
+	default:
+		status = IB_MAD_RESULT_SUCCESS;
+		break;
+	}
+	return status;
 }