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

Pull infiniband/RDMA updates from Roland Dreier:
 - large set of iSER initiator improvements
 - hardware driver fixes for cxgb4, mlx5 and ocrdma
 - small fixes to core midlayer

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
  RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
  RDMA/cxgb4: Add missing neigh_release in find_route
  RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
  RDMA/cxgb4: Make c4iw_wr_log_size_order static
  IB/core: Fix XRC race condition in ib_uverbs_open_qp
  IB/core: Clear AH attr variable to prevent garbage data
  RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
  RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
  RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
  RDMA/ocrdma: Remove a unused-label warning
  RDMA/ocrdma: Convert kernel VA to PA for mmap in user
  RDMA/ocrdma: Get vlan tag from ib_qp_attrs
  RDMA/ocrdma: Add default GID at index 0
  IB/mlx5, iser, isert: Add Signature API additions
  Target/iser: Centralize ib_sig_domain setting
  IB/iser: Centralize ib_sig_domain settings
  IB/mlx5: Use extended internal signature layout
  IB/iser: Set IP_CSUM as default guard type
  IB/iser: Remove redundant assignment
  IB/mlx5: Use enumerations for PI copy mask
  ...

MAINTAINERS

@@ -5112,6 +5112,7 @@ F:	include/scsi/*iscsi*
 
 ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR
 M:	Or Gerlitz <ogerlitz@mellanox.com>
+M:	Sagi Grimberg <sagig@mellanox.com>
 M:	Roi Dayan <roid@mellanox.com>
 L:	linux-rdma@vger.kernel.org
 S:	Supported

drivers/infiniband/core/uverbs_cmd.c

@@ -2518,6 +2518,8 @@ ssize_t ib_uverbs_create_ah(struct ib_uverbs_file *file,
 	attr.grh.sgid_index    = cmd.attr.grh.sgid_index;
 	attr.grh.hop_limit     = cmd.attr.grh.hop_limit;
 	attr.grh.traffic_class = cmd.attr.grh.traffic_class;
+	attr.vlan_id           = 0;
+	memset(&attr.dmac, 0, sizeof(attr.dmac));
 	memcpy(attr.grh.dgid.raw, cmd.attr.grh.dgid, 16);
 
 	ah = ib_create_ah(pd, &attr);

drivers/infiniband/core/uverbs_main.c

@@ -477,6 +477,7 @@ static void ib_uverbs_async_handler(struct ib_uverbs_file *file,
 
 	entry->desc.async.element    = element;
 	entry->desc.async.event_type = event;
+	entry->desc.async.reserved   = 0;
 	entry->counter               = counter;
 
 	list_add_tail(&entry->list, &file->async_file->event_list);
@@ -502,6 +503,10 @@ void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr)
 {
 	struct ib_uevent_object *uobj;
 
+	/* for XRC target qp's, check that qp is live */
+	if (!event->element.qp->uobject || !event->element.qp->uobject->live)
+		return;
+
 	uobj = container_of(event->element.qp->uobject,
 			    struct ib_uevent_object, uobject);
 

drivers/infiniband/hw/cxgb4/cm.c

@@ -236,10 +236,12 @@ static void release_tid(struct c4iw_rdev *rdev, u32 hwtid, struct sk_buff *skb)
 static void set_emss(struct c4iw_ep *ep, u16 opt)
 {
 	ep->emss = ep->com.dev->rdev.lldi.mtus[GET_TCPOPT_MSS(opt)] -
-		   sizeof(struct iphdr) - sizeof(struct tcphdr);
+		   ((AF_INET == ep->com.remote_addr.ss_family) ?
+		    sizeof(struct iphdr) : sizeof(struct ipv6hdr)) -
+		   sizeof(struct tcphdr);
 	ep->mss = ep->emss;
 	if (GET_TCPOPT_TSTAMP(opt))
-		ep->emss -= 12;
+		ep->emss -= round_up(TCPOLEN_TIMESTAMP, 4);
 	if (ep->emss < 128)
 		ep->emss = 128;
 	if (ep->emss & 7)
@@ -415,6 +417,7 @@ static struct dst_entry *find_route(struct c4iw_dev *dev, __be32 local_ip,
 		return NULL;
 	if (!our_interface(dev, n->dev) &&
 	    !(n->dev->flags & IFF_LOOPBACK)) {
+		neigh_release(n);
 		dst_release(&rt->dst);
 		return NULL;
 	}
@@ -581,11 +584,14 @@ static void c4iw_record_pm_msg(struct c4iw_ep *ep,
 }
 
 static void best_mtu(const unsigned short *mtus, unsigned short mtu,
-		     unsigned int *idx, int use_ts)
+		     unsigned int *idx, int use_ts, int ipv6)
 {
-	unsigned short hdr_size = sizeof(struct iphdr) +
+	unsigned short hdr_size = (ipv6 ?
+				   sizeof(struct ipv6hdr) :
+				   sizeof(struct iphdr)) +
 				  sizeof(struct tcphdr) +
-				  (use_ts ? 12 : 0);
+				  (use_ts ?
+				   round_up(TCPOLEN_TIMESTAMP, 4) : 0);
 	unsigned short data_size = mtu - hdr_size;
 
 	cxgb4_best_aligned_mtu(mtus, hdr_size, data_size, 8, idx);
@@ -634,7 +640,8 @@ static int send_connect(struct c4iw_ep *ep)
 	set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->ctrlq_idx);
 
 	best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
-		 enable_tcp_timestamps);
+		 enable_tcp_timestamps,
+		 (AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
 	wscale = compute_wscale(rcv_win);
 
 	/*
@@ -668,6 +675,7 @@ static int send_connect(struct c4iw_ep *ep)
 	if (is_t5(ep->com.dev->rdev.lldi.adapter_type)) {
 		opt2 |= T5_OPT_2_VALID;
 		opt2 |= V_CONG_CNTRL(CONG_ALG_TAHOE);
+		opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
 	}
 	t4_set_arp_err_handler(skb, ep, act_open_req_arp_failure);
 
@@ -713,8 +721,6 @@ static int send_connect(struct c4iw_ep *ep)
 	} else {
 		u32 isn = (prandom_u32() & ~7UL) - 1;
 
-		opt2 |= T5_OPT_2_VALID;
-		opt2 |= CONG_CNTRL_VALID; /* OPT_2_ISS for T5 */
 		if (peer2peer)
 			isn += 4;
 
@@ -756,10 +762,10 @@ static int send_connect(struct c4iw_ep *ep)
 			t5_req6->peer_ip_lo = *((__be64 *)
 						(ra6->sin6_addr.s6_addr + 8));
 			t5_req6->opt0 = cpu_to_be64(opt0);
-			t5_req6->params = (__force __be64)cpu_to_be32(
+			t5_req6->params = cpu_to_be64(V_FILTER_TUPLE(
 							cxgb4_select_ntuple(
 						ep->com.dev->rdev.lldi.ports[0],
-						ep->l2t));
+						ep->l2t)));
 			t5_req6->rsvd = cpu_to_be32(isn);
 			PDBG("%s snd_isn %u\n", __func__,
 			     be32_to_cpu(t5_req6->rsvd));
@@ -1763,7 +1769,8 @@ static void send_fw_act_open_req(struct c4iw_ep *ep, unsigned int atid)
 	req->tcb.tx_max = (__force __be32) jiffies;
 	req->tcb.rcv_adv = htons(1);
 	best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
-		 enable_tcp_timestamps);
+		 enable_tcp_timestamps,
+		 (AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
 	wscale = compute_wscale(rcv_win);
 
 	/*
@@ -2162,7 +2169,8 @@ static void accept_cr(struct c4iw_ep *ep, struct sk_buff *skb,
 						    ep->hwtid));
 
 	best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx,
-		 enable_tcp_timestamps && req->tcpopt.tstamp);
+		 enable_tcp_timestamps && req->tcpopt.tstamp,
+		 (AF_INET == ep->com.remote_addr.ss_family) ? 0 : 1);
 	wscale = compute_wscale(rcv_win);
 
 	/*

drivers/infiniband/hw/cxgb4/device.c

@@ -60,7 +60,7 @@ int c4iw_wr_log = 0;
 module_param(c4iw_wr_log, int, 0444);
 MODULE_PARM_DESC(c4iw_wr_log, "Enables logging of work request timing data.");
 
-int c4iw_wr_log_size_order = 12;
+static int c4iw_wr_log_size_order = 12;
 module_param(c4iw_wr_log_size_order, int, 0444);
 MODULE_PARM_DESC(c4iw_wr_log_size_order,
 		 "Number of entries (log2) in the work request timing log.");

drivers/infiniband/hw/mlx5/main.c

@@ -657,13 +657,13 @@ static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vm
 			return -EINVAL;
 
 		idx = get_index(vma->vm_pgoff);
+		if (idx >= uuari->num_uars)
+			return -EINVAL;
+
 		pfn = uar_index2pfn(dev, uuari->uars[idx].index);
 		mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn 0x%llx\n", idx,
 			    (unsigned long long)pfn);
 
-		if (idx >= uuari->num_uars)
-			return -EINVAL;
-
 		vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 		if (io_remap_pfn_range(vma, vma->vm_start, pfn,
 				       PAGE_SIZE, vma->vm_page_prot))
@@ -1425,8 +1425,8 @@ static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
 static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context)
 {
 	struct mlx5_ib_dev *dev = context;
-	destroy_umrc_res(dev);
 	ib_unregister_device(&dev->ib_dev);
+	destroy_umrc_res(dev);
 	destroy_dev_resources(&dev->devr);
 	free_comp_eqs(dev);
 	ib_dealloc_device(&dev->ib_dev);

drivers/infiniband/hw/mlx5/mem.c

@@ -55,16 +55,17 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
 	u64 pfn;
 	struct scatterlist *sg;
 	int entry;
+	unsigned long page_shift = ilog2(umem->page_size);
 
-	addr = addr >> PAGE_SHIFT;
+	addr = addr >> page_shift;
 	tmp = (unsigned long)addr;
 	m = find_first_bit(&tmp, sizeof(tmp));
 	skip = 1 << m;
 	mask = skip - 1;
 	i = 0;
 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
-		len = sg_dma_len(sg) >> PAGE_SHIFT;
-		pfn = sg_dma_address(sg) >> PAGE_SHIFT;
+		len = sg_dma_len(sg) >> page_shift;
+		pfn = sg_dma_address(sg) >> page_shift;
 		for (k = 0; k < len; k++) {
 			if (!(i & mask)) {
 				tmp = (unsigned long)pfn;
@@ -103,14 +104,15 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr, int *count, int *shift,
 
 		*ncont = 0;
 	}
-	*shift = PAGE_SHIFT + m;
+	*shift = page_shift + m;
 	*count = i;
 }
 
 void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
 			  int page_shift, __be64 *pas, int umr)
 {
-	int shift = page_shift - PAGE_SHIFT;
+	unsigned long umem_page_shift = ilog2(umem->page_size);
+	int shift = page_shift - umem_page_shift;
 	int mask = (1 << shift) - 1;
 	int i, k;
 	u64 cur = 0;
@@ -121,11 +123,11 @@ void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
 
 	i = 0;
 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
-		len = sg_dma_len(sg) >> PAGE_SHIFT;
+		len = sg_dma_len(sg) >> umem_page_shift;
 		base = sg_dma_address(sg);
 		for (k = 0; k < len; k++) {
 			if (!(i & mask)) {
-				cur = base + (k << PAGE_SHIFT);
+				cur = base + (k << umem_page_shift);
 				if (umr)
 					cur |= 3;
 
@@ -134,7 +136,7 @@ void mlx5_ib_populate_pas(struct mlx5_ib_dev *dev, struct ib_umem *umem,
 					    i >> shift, be64_to_cpu(pas[i >> shift]));
 			}  else
 				mlx5_ib_dbg(dev, "=====> 0x%llx\n",
-					    base + (k << PAGE_SHIFT));
+					    base + (k << umem_page_shift));
 			i++;
 		}
 	}

drivers/infiniband/hw/mlx5/mr.c

@@ -881,12 +881,12 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	int order;
 	int err;
 
-	mlx5_ib_dbg(dev, "start 0x%llx, virt_addr 0x%llx, length 0x%llx\n",
-		    start, virt_addr, length);
+	mlx5_ib_dbg(dev, "start 0x%llx, virt_addr 0x%llx, length 0x%llx, access_flags 0x%x\n",
+		    start, virt_addr, length, access_flags);
 	umem = ib_umem_get(pd->uobject->context, start, length, access_flags,
 			   0);
 	if (IS_ERR(umem)) {
-		mlx5_ib_dbg(dev, "umem get failed\n");
+		mlx5_ib_dbg(dev, "umem get failed (%ld)\n", PTR_ERR(umem));
 		return (void *)umem;
 	}
 

drivers/infiniband/hw/mlx5/qp.c

@@ -1317,6 +1317,11 @@ static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
 	path->rlid	= cpu_to_be16(ah->dlid);
 
 	if (ah->ah_flags & IB_AH_GRH) {
+		if (ah->grh.sgid_index >= gen->port[port - 1].gid_table_len) {
+			pr_err(KERN_ERR "sgid_index (%u) too large. max is %d\n",
+			       ah->grh.sgid_index, gen->port[port - 1].gid_table_len);
+			return -EINVAL;
+		}
 		path->grh_mlid |= 1 << 7;
 		path->mgid_index = ah->grh.sgid_index;
 		path->hop_limit  = ah->grh.hop_limit;
@@ -1332,22 +1337,6 @@ static int mlx5_set_path(struct mlx5_ib_dev *dev, const struct ib_ah_attr *ah,
 	path->static_rate = err;
 	path->port = port;
 
-	if (ah->ah_flags & IB_AH_GRH) {
-		if (ah->grh.sgid_index >= gen->port[port - 1].gid_table_len) {
-			pr_err(KERN_ERR "sgid_index (%u) too large. max is %d\n",
-			       ah->grh.sgid_index, gen->port[port - 1].gid_table_len);
-			return -EINVAL;
-		}
-
-		path->grh_mlid |= 1 << 7;
-		path->mgid_index = ah->grh.sgid_index;
-		path->hop_limit  = ah->grh.hop_limit;
-		path->tclass_flowlabel =
-			cpu_to_be32((ah->grh.traffic_class << 20) |
-				    (ah->grh.flow_label));
-		memcpy(path->rgid, ah->grh.dgid.raw, 16);
-	}
-
 	if (attr_mask & IB_QP_TIMEOUT)
 		path->ackto_lt = attr->timeout << 3;
 
@@ -2039,56 +2028,31 @@ static u8 bs_selector(int block_size)
 	}
 }
 
-static int format_selector(struct ib_sig_attrs *attr,
-			   struct ib_sig_domain *domain,
-			   int *selector)
+static void mlx5_fill_inl_bsf(struct ib_sig_domain *domain,
+			      struct mlx5_bsf_inl *inl)
 {
+	/* Valid inline section and allow BSF refresh */
+	inl->vld_refresh = cpu_to_be16(MLX5_BSF_INL_VALID |
+				       MLX5_BSF_REFRESH_DIF);
+	inl->dif_apptag = cpu_to_be16(domain->sig.dif.app_tag);
+	inl->dif_reftag = cpu_to_be32(domain->sig.dif.ref_tag);
+	/* repeating block */
+	inl->rp_inv_seed = MLX5_BSF_REPEAT_BLOCK;
+	inl->sig_type = domain->sig.dif.bg_type == IB_T10DIF_CRC ?
+			MLX5_DIF_CRC : MLX5_DIF_IPCS;
 
-#define FORMAT_DIF_NONE		0
-#define FORMAT_DIF_CRC_INC	8
-#define FORMAT_DIF_CRC_NO_INC	12
-#define FORMAT_DIF_CSUM_INC	13
-#define FORMAT_DIF_CSUM_NO_INC	14
+	if (domain->sig.dif.ref_remap)
+		inl->dif_inc_ref_guard_check |= MLX5_BSF_INC_REFTAG;
 
-	switch (domain->sig.dif.type) {
-	case IB_T10DIF_NONE:
-		/* No DIF */
-		*selector = FORMAT_DIF_NONE;
-		break;
-	case IB_T10DIF_TYPE1: /* Fall through */
-	case IB_T10DIF_TYPE2:
-		switch (domain->sig.dif.bg_type) {
-		case IB_T10DIF_CRC:
-			*selector = FORMAT_DIF_CRC_INC;
-			break;
-		case IB_T10DIF_CSUM:
-			*selector = FORMAT_DIF_CSUM_INC;
-			break;
-		default:
-			return 1;
-		}
-		break;
-	case IB_T10DIF_TYPE3:
-		switch (domain->sig.dif.bg_type) {
-		case IB_T10DIF_CRC:
-			*selector = domain->sig.dif.type3_inc_reftag ?
-					   FORMAT_DIF_CRC_INC :
-					   FORMAT_DIF_CRC_NO_INC;
-			break;
-		case IB_T10DIF_CSUM:
-			*selector = domain->sig.dif.type3_inc_reftag ?
-					   FORMAT_DIF_CSUM_INC :
-					   FORMAT_DIF_CSUM_NO_INC;
-			break;
-		default:
-			return 1;
-		}
-		break;
-	default:
-		return 1;
+	if (domain->sig.dif.app_escape) {
+		if (domain->sig.dif.ref_escape)
+			inl->dif_inc_ref_guard_check |= MLX5_BSF_APPREF_ESCAPE;
+		else
+			inl->dif_inc_ref_guard_check |= MLX5_BSF_APPTAG_ESCAPE;
 	}
 
-	return 0;
+	inl->dif_app_bitmask_check =
+		cpu_to_be16(domain->sig.dif.apptag_check_mask);
 }
 
 static int mlx5_set_bsf(struct ib_mr *sig_mr,
@@ -2099,45 +2063,49 @@ static int mlx5_set_bsf(struct ib_mr *sig_mr,
 	struct mlx5_bsf_basic *basic = &bsf->basic;
 	struct ib_sig_domain *mem = &sig_attrs->mem;
 	struct ib_sig_domain *wire = &sig_attrs->wire;
-	int ret, selector;
 
 	memset(bsf, 0, sizeof(*bsf));
+
+	/* Basic + Extended + Inline */
+	basic->bsf_size_sbs = 1 << 7;
+	/* Input domain check byte mask */
+	basic->check_byte_mask = sig_attrs->check_mask;
+	basic->raw_data_size = cpu_to_be32(data_size);
+
+	/* Memory domain */
 	switch (sig_attrs->mem.sig_type) {
+	case IB_SIG_TYPE_NONE:
+		break;
 	case IB_SIG_TYPE_T10_DIF:
-		if (sig_attrs->wire.sig_type != IB_SIG_TYPE_T10_DIF)
-			return -EINVAL;
+		basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval);
+		basic->m_bfs_psv = cpu_to_be32(msig->psv_memory.psv_idx);
+		mlx5_fill_inl_bsf(mem, &bsf->m_inl);
+		break;
+	default:
+		return -EINVAL;
+	}
 
-		/* Input domain check byte mask */
-		basic->check_byte_mask = sig_attrs->check_mask;
+	/* Wire domain */
+	switch (sig_attrs->wire.sig_type) {
+	case IB_SIG_TYPE_NONE:
+		break;
+	case IB_SIG_TYPE_T10_DIF:
 		if (mem->sig.dif.pi_interval == wire->sig.dif.pi_interval &&
-		    mem->sig.dif.type == wire->sig.dif.type) {
+		    mem->sig_type == wire->sig_type) {
 			/* Same block structure */
-			basic->bsf_size_sbs = 1 << 4;
+			basic->bsf_size_sbs |= 1 << 4;
 			if (mem->sig.dif.bg_type == wire->sig.dif.bg_type)
-				basic->wire.copy_byte_mask |= 0xc0;
+				basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK;
 			if (mem->sig.dif.app_tag == wire->sig.dif.app_tag)
-				basic->wire.copy_byte_mask |= 0x30;
+				basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK;
 			if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag)
-				basic->wire.copy_byte_mask |= 0x0f;
+				basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK;
 		} else
 			basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval);
 
-		basic->mem.bs_selector = bs_selector(mem->sig.dif.pi_interval);
-		basic->raw_data_size = cpu_to_be32(data_size);
-
-		ret = format_selector(sig_attrs, mem, &selector);
-		if (ret)
-			return -EINVAL;
-		basic->m_bfs_psv = cpu_to_be32(selector << 24 |
-					       msig->psv_memory.psv_idx);
-
-		ret = format_selector(sig_attrs, wire, &selector);
-		if (ret)
-			return -EINVAL;
-		basic->w_bfs_psv = cpu_to_be32(selector << 24 |
-					       msig->psv_wire.psv_idx);
+		basic->w_bfs_psv = cpu_to_be32(msig->psv_wire.psv_idx);
+		mlx5_fill_inl_bsf(wire, &bsf->w_inl);
 		break;
-
 	default:
 		return -EINVAL;
 	}
@@ -2336,20 +2304,21 @@ static int set_psv_wr(struct ib_sig_domain *domain,
 	memset(psv_seg, 0, sizeof(*psv_seg));
 	psv_seg->psv_num = cpu_to_be32(psv_idx);
 	switch (domain->sig_type) {
+	case IB_SIG_TYPE_NONE:
+		break;
 	case IB_SIG_TYPE_T10_DIF:
 		psv_seg->transient_sig = cpu_to_be32(domain->sig.dif.bg << 16 |
 						     domain->sig.dif.app_tag);
 		psv_seg->ref_tag = cpu_to_be32(domain->sig.dif.ref_tag);
-
-		*seg += sizeof(*psv_seg);
-		*size += sizeof(*psv_seg) / 16;
 		break;
-
 	default:
 		pr_err("Bad signature type given.\n");
 		return 1;
 	}
 
+	*seg += sizeof(*psv_seg);
+	*size += sizeof(*psv_seg) / 16;
+
 	return 0;
 }
 

drivers/infiniband/hw/ocrdma/ocrdma_hw.c

@@ -348,11 +348,6 @@ static void *ocrdma_init_emb_mqe(u8 opcode, u32 cmd_len)
 	return mqe;
 }
 
-static void *ocrdma_alloc_mqe(void)
-{
-	return kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
-}
-
 static void ocrdma_free_q(struct ocrdma_dev *dev, struct ocrdma_queue_info *q)
 {
 	dma_free_coherent(&dev->nic_info.pdev->dev, q->size, q->va, q->dma);
@@ -566,8 +561,8 @@ static int ocrdma_mbx_create_mq(struct ocrdma_dev *dev,
 	cmd->cqid_pages |= (cq->id << OCRDMA_CREATE_MQ_CQ_ID_SHIFT);
 	cmd->async_cqid_valid = OCRDMA_CREATE_MQ_ASYNC_CQ_VALID;
 
-	cmd->async_event_bitmap = Bit(OCRDMA_ASYNC_GRP5_EVE_CODE);
-	cmd->async_event_bitmap |= Bit(OCRDMA_ASYNC_RDMA_EVE_CODE);
+	cmd->async_event_bitmap = BIT(OCRDMA_ASYNC_GRP5_EVE_CODE);
+	cmd->async_event_bitmap |= BIT(OCRDMA_ASYNC_RDMA_EVE_CODE);
 
 	cmd->async_cqid_ringsize = cq->id;
 	cmd->async_cqid_ringsize |= (ocrdma_encoded_q_len(mq->len) <<
@@ -1189,10 +1184,10 @@ int ocrdma_mbx_rdma_stats(struct ocrdma_dev *dev, bool reset)
 {
 	struct ocrdma_rdma_stats_req *req = dev->stats_mem.va;
 	struct ocrdma_mqe *mqe = &dev->stats_mem.mqe;
-	struct ocrdma_rdma_stats_resp *old_stats = NULL;
+	struct ocrdma_rdma_stats_resp *old_stats;
 	int status;
 
-	old_stats = kzalloc(sizeof(*old_stats), GFP_KERNEL);
+	old_stats = kmalloc(sizeof(*old_stats), GFP_KERNEL);
 	if (old_stats == NULL)
 		return -ENOMEM;
 
@@ -1235,10 +1230,9 @@ static int ocrdma_mbx_get_ctrl_attribs(struct ocrdma_dev *dev)
 	struct ocrdma_get_ctrl_attribs_rsp *ctrl_attr_rsp;
 	struct mgmt_hba_attribs *hba_attribs;
 
-	mqe = ocrdma_alloc_mqe();
+	mqe = kzalloc(sizeof(struct ocrdma_mqe), GFP_KERNEL);
 	if (!mqe)
 		return status;
-	memset(mqe, 0, sizeof(*mqe));
 
 	dma.size = sizeof(struct ocrdma_get_ctrl_attribs_rsp);
 	dma.va	 = dma_alloc_coherent(&dev->nic_info.pdev->dev,
@@ -2279,7 +2273,8 @@ int ocrdma_mbx_query_qp(struct ocrdma_dev *dev, struct ocrdma_qp *qp,
 
 static int ocrdma_set_av_params(struct ocrdma_qp *qp,
 				struct ocrdma_modify_qp *cmd,
-				struct ib_qp_attr *attrs)
+				struct ib_qp_attr *attrs,
+				int attr_mask)
 {
 	int status;
 	struct ib_ah_attr *ah_attr = &attrs->ah_attr;
@@ -2319,8 +2314,8 @@ static int ocrdma_set_av_params(struct ocrdma_qp *qp,
 	ocrdma_cpu_to_le32(&cmd->params.dgid[0], sizeof(cmd->params.dgid));
 	ocrdma_cpu_to_le32(&cmd->params.sgid[0], sizeof(cmd->params.sgid));
 	cmd->params.vlan_dmac_b4_to_b5 = mac_addr[4] | (mac_addr[5] << 8);
-	vlan_id = ah_attr->vlan_id;
-	if (vlan_id && (vlan_id < 0x1000)) {
+	if (attr_mask & IB_QP_VID) {
+		vlan_id = attrs->vlan_id;
 		cmd->params.vlan_dmac_b4_to_b5 |=
 		    vlan_id << OCRDMA_QP_PARAMS_VLAN_SHIFT;
 		cmd->flags |= OCRDMA_QP_PARA_VLAN_EN_VALID;
@@ -2347,7 +2342,7 @@ static int ocrdma_set_qp_params(struct ocrdma_qp *qp,
 		cmd->flags |= OCRDMA_QP_PARA_QKEY_VALID;
 	}
 	if (attr_mask & IB_QP_AV) {
-		status = ocrdma_set_av_params(qp, cmd, attrs);
+		status = ocrdma_set_av_params(qp, cmd, attrs, attr_mask);
 		if (status)
 			return status;
 	} else if (qp->qp_type == IB_QPT_GSI || qp->qp_type == IB_QPT_UD) {

drivers/infiniband/hw/ocrdma/ocrdma_main.c

@@ -388,6 +388,15 @@ static void ocrdma_remove_sysfiles(struct ocrdma_dev *dev)
 		device_remove_file(&dev->ibdev.dev, ocrdma_attributes[i]);
 }
 
+static void ocrdma_add_default_sgid(struct ocrdma_dev *dev)
+{
+	/* GID Index 0 - Invariant manufacturer-assigned EUI-64 */
+	union ib_gid *sgid = &dev->sgid_tbl[0];
+
+	sgid->global.subnet_prefix = cpu_to_be64(0xfe80000000000000LL);
+	ocrdma_get_guid(dev, &sgid->raw[8]);
+}
+
 static void ocrdma_init_ipv4_gids(struct ocrdma_dev *dev,
 				  struct net_device *net)
 {
@@ -434,6 +443,7 @@ static void ocrdma_init_gid_table(struct ocrdma_dev *dev)
 				rdma_vlan_dev_real_dev(net_dev) : net_dev;
 
 		if (real_dev == dev->nic_info.netdev) {
+			ocrdma_add_default_sgid(dev);
 			ocrdma_init_ipv4_gids(dev, net_dev);
 			ocrdma_init_ipv6_gids(dev, net_dev);
 		}
@@ -646,8 +656,10 @@ static int __init ocrdma_init_module(void)
 	return 0;
 
 err_be_reg:
+#if IS_ENABLED(CONFIG_IPV6)
 	ocrdma_unregister_inet6addr_notifier();
 err_notifier6:
+#endif
 	ocrdma_unregister_inetaddr_notifier();
 	return status;
 }

drivers/infiniband/hw/ocrdma/ocrdma_verbs.c

@@ -388,7 +388,7 @@ struct ib_ucontext *ocrdma_alloc_ucontext(struct ib_device *ibdev,
 
 	memset(&resp, 0, sizeof(resp));
 	resp.ah_tbl_len = ctx->ah_tbl.len;
-	resp.ah_tbl_page = ctx->ah_tbl.pa;
+	resp.ah_tbl_page = virt_to_phys(ctx->ah_tbl.va);
 
 	status = ocrdma_add_mmap(ctx, resp.ah_tbl_page, resp.ah_tbl_len);
 	if (status)
@@ -870,7 +870,7 @@ static int ocrdma_copy_cq_uresp(struct ocrdma_dev *dev, struct ocrdma_cq *cq,
 	uresp.page_size = PAGE_ALIGN(cq->len);
 	uresp.num_pages = 1;
 	uresp.max_hw_cqe = cq->max_hw_cqe;
-	uresp.page_addr[0] = cq->pa;
+	uresp.page_addr[0] = virt_to_phys(cq->va);
 	uresp.db_page_addr =  ocrdma_get_db_addr(dev, uctx->cntxt_pd->id);
 	uresp.db_page_size = dev->nic_info.db_page_size;
 	uresp.phase_change = cq->phase_change ? 1 : 0;
@@ -1123,13 +1123,13 @@ static int ocrdma_copy_qp_uresp(struct ocrdma_qp *qp,
 	uresp.sq_dbid = qp->sq.dbid;
 	uresp.num_sq_pages = 1;
 	uresp.sq_page_size = PAGE_ALIGN(qp->sq.len);
-	uresp.sq_page_addr[0] = qp->sq.pa;
+	uresp.sq_page_addr[0] = virt_to_phys(qp->sq.va);
 	uresp.num_wqe_allocated = qp->sq.max_cnt;
 	if (!srq) {
 		uresp.rq_dbid = qp->rq.dbid;
 		uresp.num_rq_pages = 1;
 		uresp.rq_page_size = PAGE_ALIGN(qp->rq.len);
-		uresp.rq_page_addr[0] = qp->rq.pa;
+		uresp.rq_page_addr[0] = virt_to_phys(qp->rq.va);
 		uresp.num_rqe_allocated = qp->rq.max_cnt;
 	}
 	uresp.db_page_addr = usr_db;
@@ -1680,7 +1680,7 @@ static int ocrdma_copy_srq_uresp(struct ocrdma_dev *dev, struct ocrdma_srq *srq,
 	memset(&uresp, 0, sizeof(uresp));
 	uresp.rq_dbid = srq->rq.dbid;
 	uresp.num_rq_pages = 1;
-	uresp.rq_page_addr[0] = srq->rq.pa;
+	uresp.rq_page_addr[0] = virt_to_phys(srq->rq.va);
 	uresp.rq_page_size = srq->rq.len;
 	uresp.db_page_addr = dev->nic_info.unmapped_db +
 	    (srq->pd->id * dev->nic_info.db_page_size);

drivers/infiniband/ulp/iser/iser_memory.c

@@ -49,7 +49,7 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 					struct iser_data_buf *data_copy,
 					enum iser_data_dir cmd_dir)
 {
-	struct ib_device *dev = iser_task->ib_conn->device->ib_device;
+	struct ib_device *dev = iser_task->iser_conn->ib_conn.device->ib_device;
 	struct scatterlist *sgl = (struct scatterlist *)data->buf;
 	struct scatterlist *sg;
 	char *mem = NULL;
@@ -116,7 +116,7 @@ void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 	struct ib_device *dev;
 	unsigned long  cmd_data_len;
 
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->ib_conn.device->ib_device;
 
 	ib_dma_unmap_sg(dev, &data_copy->sg_single, 1,
 			(cmd_dir == ISER_DIR_OUT) ?
@@ -322,7 +322,7 @@ int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
 	struct ib_device *dev;
 
 	iser_task->dir[iser_dir] = 1;
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->ib_conn.device->ib_device;
 
 	data->dma_nents = ib_dma_map_sg(dev, data->buf, data->size, dma_dir);
 	if (data->dma_nents == 0) {
@@ -337,7 +337,7 @@ void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task,
 {
 	struct ib_device *dev;
 
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->ib_conn.device->ib_device;
 	ib_dma_unmap_sg(dev, data->buf, data->size, DMA_FROM_DEVICE);
 }
 
@@ -348,7 +348,7 @@ static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
 			      enum iser_data_dir cmd_dir,
 			      int aligned_len)
 {
-	struct iscsi_conn    *iscsi_conn = iser_task->ib_conn->iscsi_conn;
+	struct iscsi_conn    *iscsi_conn = iser_task->iser_conn->iscsi_conn;
 
 	iscsi_conn->fmr_unalign_cnt++;
 	iser_warn("rdma alignment violation (%d/%d aligned) or FMR not supported\n",
@@ -377,7 +377,7 @@ static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
 int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 			  enum iser_data_dir cmd_dir)
 {
-	struct iser_conn     *ib_conn = iser_task->ib_conn;
+	struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
 	struct iser_device   *device = ib_conn->device;
 	struct ib_device     *ibdev = device->ib_device;
 	struct iser_data_buf *mem = &iser_task->data[cmd_dir];
@@ -432,7 +432,7 @@ int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 				 ib_conn->fmr.page_vec->offset);
 			for (i = 0; i < ib_conn->fmr.page_vec->length; i++)
 				iser_err("page_vec[%d] = 0x%llx\n", i,
-					 (unsigned long long) ib_conn->fmr.page_vec->pages[i]);
+					 (unsigned long long)ib_conn->fmr.page_vec->pages[i]);
 		}
 		if (err)
 			return err;
@@ -440,77 +440,74 @@ int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 	return 0;
 }
 
-static inline enum ib_t10_dif_type
-scsi2ib_prot_type(unsigned char prot_type)
+static inline void
+iser_set_dif_domain(struct scsi_cmnd *sc, struct ib_sig_attrs *sig_attrs,
+		    struct ib_sig_domain *domain)
 {
-	switch (prot_type) {
-	case SCSI_PROT_DIF_TYPE0:
-		return IB_T10DIF_NONE;
-	case SCSI_PROT_DIF_TYPE1:
-		return IB_T10DIF_TYPE1;
-	case SCSI_PROT_DIF_TYPE2:
-		return IB_T10DIF_TYPE2;
-	case SCSI_PROT_DIF_TYPE3:
-		return IB_T10DIF_TYPE3;
-	default:
-		return IB_T10DIF_NONE;
-	}
-}
-
+	domain->sig_type = IB_SIG_TYPE_T10_DIF;
+	domain->sig.dif.pi_interval = sc->device->sector_size;
+	domain->sig.dif.ref_tag = scsi_get_lba(sc) & 0xffffffff;
+	/*
+	 * At the moment we hard code those, but in the future
+	 * we will take them from sc.
+	 */
+	domain->sig.dif.apptag_check_mask = 0xffff;
+	domain->sig.dif.app_escape = true;
+	domain->sig.dif.ref_escape = true;
+	if (scsi_get_prot_type(sc) == SCSI_PROT_DIF_TYPE1 ||
+	    scsi_get_prot_type(sc) == SCSI_PROT_DIF_TYPE2)
+		domain->sig.dif.ref_remap = true;
+};
 
 static int
 iser_set_sig_attrs(struct scsi_cmnd *sc, struct ib_sig_attrs *sig_attrs)
 {
-	unsigned char scsi_ptype = scsi_get_prot_type(sc);
-
-	sig_attrs->mem.sig_type = IB_SIG_TYPE_T10_DIF;
-	sig_attrs->wire.sig_type = IB_SIG_TYPE_T10_DIF;
-	sig_attrs->mem.sig.dif.pi_interval = sc->device->sector_size;
-	sig_attrs->wire.sig.dif.pi_interval = sc->device->sector_size;
-
 	switch (scsi_get_prot_op(sc)) {
 	case SCSI_PROT_WRITE_INSERT:
 	case SCSI_PROT_READ_STRIP:
-		sig_attrs->mem.sig.dif.type = IB_T10DIF_NONE;
-		sig_attrs->wire.sig.dif.type = scsi2ib_prot_type(scsi_ptype);
+		sig_attrs->mem.sig_type = IB_SIG_TYPE_NONE;
+		iser_set_dif_domain(sc, sig_attrs, &sig_attrs->wire);
 		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->wire.sig.dif.ref_tag = scsi_get_lba(sc) &
-						  0xffffffff;
 		break;
 	case SCSI_PROT_READ_INSERT:
 	case SCSI_PROT_WRITE_STRIP:
-		sig_attrs->mem.sig.dif.type = scsi2ib_prot_type(scsi_ptype);
-		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->mem.sig.dif.ref_tag = scsi_get_lba(sc) &
-						 0xffffffff;
-		sig_attrs->wire.sig.dif.type = IB_T10DIF_NONE;
+		sig_attrs->wire.sig_type = IB_SIG_TYPE_NONE;
+		iser_set_dif_domain(sc, sig_attrs, &sig_attrs->mem);
+		/*
+		 * At the moment we use this modparam to tell what is
+		 * the memory bg_type, in the future we will take it
+		 * from sc.
+		 */
+		sig_attrs->mem.sig.dif.bg_type = iser_pi_guard ? IB_T10DIF_CSUM :
+						 IB_T10DIF_CRC;
 		break;
 	case SCSI_PROT_READ_PASS:
 	case SCSI_PROT_WRITE_PASS:
-		sig_attrs->mem.sig.dif.type = scsi2ib_prot_type(scsi_ptype);
-		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->mem.sig.dif.ref_tag = scsi_get_lba(sc) &
-						 0xffffffff;
-		sig_attrs->wire.sig.dif.type = scsi2ib_prot_type(scsi_ptype);
+		iser_set_dif_domain(sc, sig_attrs, &sig_attrs->wire);
 		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->wire.sig.dif.ref_tag = scsi_get_lba(sc) &
-						  0xffffffff;
+		iser_set_dif_domain(sc, sig_attrs, &sig_attrs->mem);
+		/*
+		 * At the moment we use this modparam to tell what is
+		 * the memory bg_type, in the future we will take it
+		 * from sc.
+		 */
+		sig_attrs->mem.sig.dif.bg_type = iser_pi_guard ? IB_T10DIF_CSUM :
+						 IB_T10DIF_CRC;
 		break;
 	default:
 		iser_err("Unsupported PI operation %d\n",
 			 scsi_get_prot_op(sc));
 		return -EINVAL;
 	}
+
 	return 0;
 }
 
-
 static int
 iser_set_prot_checks(struct scsi_cmnd *sc, u8 *mask)
 {
 	switch (scsi_get_prot_type(sc)) {
 	case SCSI_PROT_DIF_TYPE0:
-		*mask = 0x0;
 		break;
 	case SCSI_PROT_DIF_TYPE1:
 	case SCSI_PROT_DIF_TYPE2:
@@ -533,7 +530,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 		struct fast_reg_descriptor *desc, struct ib_sge *data_sge,
 		struct ib_sge *prot_sge, struct ib_sge *sig_sge)
 {
-	struct iser_conn *ib_conn = iser_task->ib_conn;
+	struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
 	struct iser_pi_context *pi_ctx = desc->pi_ctx;
 	struct ib_send_wr sig_wr, inv_wr;
 	struct ib_send_wr *bad_wr, *wr = NULL;
@@ -609,7 +606,7 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 			    struct ib_sge *sge)
 {
 	struct fast_reg_descriptor *desc = regd_buf->reg.mem_h;
-	struct iser_conn *ib_conn = iser_task->ib_conn;
+	struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
 	struct iser_device *device = ib_conn->device;
 	struct ib_device *ibdev = device->ib_device;
 	struct ib_mr *mr;
@@ -700,7 +697,7 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *iser_task,
 			      enum iser_data_dir cmd_dir)
 {
-	struct iser_conn *ib_conn = iser_task->ib_conn;
+	struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
 	struct iser_device *device = ib_conn->device;
 	struct ib_device *ibdev = device->ib_device;
 	struct iser_data_buf *mem = &iser_task->data[cmd_dir];

drivers/infiniband/ulp/isert/ib_isert.c

@@ -2609,58 +2609,45 @@ isert_fast_reg_mr(struct isert_conn *isert_conn,
 	return ret;
 }
 
-static inline enum ib_t10_dif_type
-se2ib_prot_type(enum target_prot_type prot_type)
-{
-	switch (prot_type) {
-	case TARGET_DIF_TYPE0_PROT:
-		return IB_T10DIF_NONE;
-	case TARGET_DIF_TYPE1_PROT:
-		return IB_T10DIF_TYPE1;
-	case TARGET_DIF_TYPE2_PROT:
-		return IB_T10DIF_TYPE2;
-	case TARGET_DIF_TYPE3_PROT:
-		return IB_T10DIF_TYPE3;
-	default:
-		return IB_T10DIF_NONE;
-	}
-}
+static inline void
+isert_set_dif_domain(struct se_cmd *se_cmd, struct ib_sig_attrs *sig_attrs,
+		     struct ib_sig_domain *domain)
+{
+	domain->sig_type = IB_SIG_TYPE_T10_DIF;
+	domain->sig.dif.bg_type = IB_T10DIF_CRC;
+	domain->sig.dif.pi_interval = se_cmd->se_dev->dev_attrib.block_size;
+	domain->sig.dif.ref_tag = se_cmd->reftag_seed;
+	/*
+	 * At the moment we hard code those, but if in the future
+	 * the target core would like to use it, we will take it
+	 * from se_cmd.
+	 */
+	domain->sig.dif.apptag_check_mask = 0xffff;
+	domain->sig.dif.app_escape = true;
+	domain->sig.dif.ref_escape = true;
+	if (se_cmd->prot_type == TARGET_DIF_TYPE1_PROT ||
+	    se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)
+		domain->sig.dif.ref_remap = true;
+};
 
 static int
 isert_set_sig_attrs(struct se_cmd *se_cmd, struct ib_sig_attrs *sig_attrs)
 {
-	enum ib_t10_dif_type ib_prot_type = se2ib_prot_type(se_cmd->prot_type);
-
-	sig_attrs->mem.sig_type = IB_SIG_TYPE_T10_DIF;
-	sig_attrs->wire.sig_type = IB_SIG_TYPE_T10_DIF;
-	sig_attrs->mem.sig.dif.pi_interval =
-				se_cmd->se_dev->dev_attrib.block_size;
-	sig_attrs->wire.sig.dif.pi_interval =
-				se_cmd->se_dev->dev_attrib.block_size;
-
 	switch (se_cmd->prot_op) {
 	case TARGET_PROT_DIN_INSERT:
 	case TARGET_PROT_DOUT_STRIP:
-		sig_attrs->mem.sig.dif.type = IB_T10DIF_NONE;
-		sig_attrs->wire.sig.dif.type = ib_prot_type;
-		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;
+		sig_attrs->mem.sig_type = IB_SIG_TYPE_NONE;
+		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->wire);
 		break;
 	case TARGET_PROT_DOUT_INSERT:
 	case TARGET_PROT_DIN_STRIP:
-		sig_attrs->mem.sig.dif.type = ib_prot_type;
-		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;
-		sig_attrs->wire.sig.dif.type = IB_T10DIF_NONE;
+		sig_attrs->wire.sig_type = IB_SIG_TYPE_NONE;
+		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->mem);
 		break;
 	case TARGET_PROT_DIN_PASS:
 	case TARGET_PROT_DOUT_PASS:
-		sig_attrs->mem.sig.dif.type = ib_prot_type;
-		sig_attrs->mem.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->mem.sig.dif.ref_tag = se_cmd->reftag_seed;
-		sig_attrs->wire.sig.dif.type = ib_prot_type;
-		sig_attrs->wire.sig.dif.bg_type = IB_T10DIF_CRC;
-		sig_attrs->wire.sig.dif.ref_tag = se_cmd->reftag_seed;
+		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->wire);
+		isert_set_dif_domain(se_cmd, sig_attrs, &sig_attrs->mem);
 		break;
 	default:
 		pr_err("Unsupported PI operation %d\n", se_cmd->prot_op);

include/linux/mlx5/qp.h

@@ -40,6 +40,15 @@
 #define MLX5_SIG_WQE_SIZE	(MLX5_SEND_WQE_BB * 5)
 #define MLX5_DIF_SIZE		8
 #define MLX5_STRIDE_BLOCK_OP	0x400
+#define MLX5_CPY_GRD_MASK	0xc0
+#define MLX5_CPY_APP_MASK	0x30
+#define MLX5_CPY_REF_MASK	0x0f
+#define MLX5_BSF_INC_REFTAG	(1 << 6)
+#define MLX5_BSF_INL_VALID	(1 << 15)
+#define MLX5_BSF_REFRESH_DIF	(1 << 14)
+#define MLX5_BSF_REPEAT_BLOCK	(1 << 7)
+#define MLX5_BSF_APPTAG_ESCAPE	0x1
+#define MLX5_BSF_APPREF_ESCAPE	0x2
 
 enum mlx5_qp_optpar {
 	MLX5_QP_OPTPAR_ALT_ADDR_PATH		= 1 << 0,
@@ -287,6 +296,22 @@ struct mlx5_wqe_inline_seg {
 	__be32	byte_count;
 };
 
+enum mlx5_sig_type {
+	MLX5_DIF_CRC = 0x1,
+	MLX5_DIF_IPCS = 0x2,
+};
+
+struct mlx5_bsf_inl {
+	__be16		vld_refresh;
+	__be16		dif_apptag;
+	__be32		dif_reftag;
+	u8		sig_type;
+	u8		rp_inv_seed;
+	u8		rsvd[3];
+	u8		dif_inc_ref_guard_check;
+	__be16		dif_app_bitmask_check;
+};
+
 struct mlx5_bsf {
 	struct mlx5_bsf_basic {
 		u8		bsf_size_sbs;
@@ -310,14 +335,8 @@ struct mlx5_bsf {
 		__be32		w_tfs_psv;
 		__be32		m_tfs_psv;
 	} ext;
-	struct mlx5_bsf_inl {
-		__be32		w_inl_vld;
-		__be32		w_rsvd;
-		__be64		w_block_format;
-		__be32		m_inl_vld;
-		__be32		m_rsvd;
-		__be64		m_block_format;
-	} inl;
+	struct mlx5_bsf_inl	w_inl;
+	struct mlx5_bsf_inl	m_inl;
 };
 
 struct mlx5_klm {

include/rdma/ib_verbs.h

@@ -491,20 +491,14 @@ struct ib_mr_init_attr {
 	u32	    flags;
 };
 
-enum ib_signature_type {
-	IB_SIG_TYPE_T10_DIF,
-};
-
 /**
- * T10-DIF Signature types
- * T10-DIF types are defined by SCSI
- * specifications.
+ * Signature types
+ * IB_SIG_TYPE_NONE: Unprotected.
+ * IB_SIG_TYPE_T10_DIF: Type T10-DIF
  */
-enum ib_t10_dif_type {
-	IB_T10DIF_NONE,
-	IB_T10DIF_TYPE1,
-	IB_T10DIF_TYPE2,
-	IB_T10DIF_TYPE3
+enum ib_signature_type {
+	IB_SIG_TYPE_NONE,
+	IB_SIG_TYPE_T10_DIF,
 };
 
 /**
@@ -520,24 +514,26 @@ enum ib_t10_dif_bg_type {
 /**
  * struct ib_t10_dif_domain - Parameters specific for T10-DIF
  *     domain.
- * @type: T10-DIF type (0|1|2|3)
  * @bg_type: T10-DIF block guard type (CRC|CSUM)
  * @pi_interval: protection information interval.
  * @bg: seed of guard computation.
  * @app_tag: application tag of guard block
  * @ref_tag: initial guard block reference tag.
- * @type3_inc_reftag: T10-DIF type 3 does not state
- *     about the reference tag, it is the user
- *     choice to increment it or not.
+ * @ref_remap: Indicate wethear the reftag increments each block
+ * @app_escape: Indicate to skip block check if apptag=0xffff
+ * @ref_escape: Indicate to skip block check if reftag=0xffffffff
+ * @apptag_check_mask: check bitmask of application tag.
  */
 struct ib_t10_dif_domain {
-	enum ib_t10_dif_type	type;
 	enum ib_t10_dif_bg_type bg_type;
 	u16			pi_interval;
 	u16			bg;
 	u16			app_tag;
 	u32			ref_tag;
-	bool			type3_inc_reftag;
+	bool			ref_remap;
+	bool			app_escape;
+	bool			ref_escape;
+	u16			apptag_check_mask;
 };
 
 /**