mlx5: Move pci device handling from mlx5_ib to mlx5_core

In preparation for a new mlx5 device which is VPI (i.e., ports can be
either IB or ETH), move the pci device functionality from mlx5_ib
to mlx5_core.

This involves the following changes:
1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev
   is now an independent structure maintained by mlx5_core.
   mlx5_ib_dev now has a pointer to that struct.
   This requires changing a lot of places where the core_dev
   struct was accessed via mlx5_ib_dev (now, this needs to
   be a pointer dereference).
2. All PCI initializations are now done in mlx5_core. Thus,
   it is now mlx5_core which does pci_register_device (and not
   mlx5_ib, as was previously).
3. mlx5_ib now registers itself with mlx5_core as an "interface"
   driver. This is very similar to the mechanism employed for
   the mlx4 (ConnectX) driver. Once the HCA is initialized
   (by mlx5_core), it invokes the interface drivers to do
   their initializations.
4. There is a new event handler which the core registers:
   mlx5_core_event(). This event handler invokes the
   event handlers registered by the interfaces.

Based on a patch by Eli Cohen <eli@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/infiniband/hw/mlx5/cq.c

@@ -180,7 +180,7 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe,
 		struct mlx5_core_srq *msrq = NULL;
 
 		if (qp->ibqp.xrcd) {
-			msrq = mlx5_core_get_srq(&dev->mdev,
+			msrq = mlx5_core_get_srq(dev->mdev,
 						 be32_to_cpu(cqe->srqn));
 			srq = to_mibsrq(msrq);
 		} else {
@@ -364,7 +364,7 @@ static void handle_atomics(struct mlx5_ib_qp *qp, struct mlx5_cqe64 *cqe64,
 
 static void free_cq_buf(struct mlx5_ib_dev *dev, struct mlx5_ib_cq_buf *buf)
 {
-	mlx5_buf_free(&dev->mdev, &buf->buf);
+	mlx5_buf_free(dev->mdev, &buf->buf);
 }
 
 static void get_sig_err_item(struct mlx5_sig_err_cqe *cqe,
@@ -450,7 +450,7 @@ static int mlx5_poll_one(struct mlx5_ib_cq *cq,
 		 * because CQs will be locked while QPs are removed
 		 * from the table.
 		 */
-		mqp = __mlx5_qp_lookup(&dev->mdev, qpn);
+		mqp = __mlx5_qp_lookup(dev->mdev, qpn);
 		if (unlikely(!mqp)) {
 			mlx5_ib_warn(dev, "CQE@CQ %06x for unknown QPN %6x\n",
 				     cq->mcq.cqn, qpn);
@@ -514,11 +514,11 @@ static int mlx5_poll_one(struct mlx5_ib_cq *cq,
 	case MLX5_CQE_SIG_ERR:
 		sig_err_cqe = (struct mlx5_sig_err_cqe *)cqe64;
 
-		read_lock(&dev->mdev.priv.mr_table.lock);
-		mmr = __mlx5_mr_lookup(&dev->mdev,
+		read_lock(&dev->mdev->priv.mr_table.lock);
+		mmr = __mlx5_mr_lookup(dev->mdev,
 				       mlx5_base_mkey(be32_to_cpu(sig_err_cqe->mkey)));
 		if (unlikely(!mmr)) {
-			read_unlock(&dev->mdev.priv.mr_table.lock);
+			read_unlock(&dev->mdev->priv.mr_table.lock);
 			mlx5_ib_warn(dev, "CQE@CQ %06x for unknown MR %6x\n",
 				     cq->mcq.cqn, be32_to_cpu(sig_err_cqe->mkey));
 			return -EINVAL;
@@ -536,7 +536,7 @@ static int mlx5_poll_one(struct mlx5_ib_cq *cq,
 			     mr->sig->err_item.expected,
 			     mr->sig->err_item.actual);
 
-		read_unlock(&dev->mdev.priv.mr_table.lock);
+		read_unlock(&dev->mdev->priv.mr_table.lock);
 		goto repoll;
 	}
 
@@ -575,8 +575,8 @@ int mlx5_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
 	mlx5_cq_arm(&to_mcq(ibcq)->mcq,
 		    (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
 		    MLX5_CQ_DB_REQ_NOT_SOL : MLX5_CQ_DB_REQ_NOT,
-		    to_mdev(ibcq->device)->mdev.priv.uuari.uars[0].map,
-		    MLX5_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->mdev.priv.cq_uar_lock));
+		    to_mdev(ibcq->device)->mdev->priv.uuari.uars[0].map,
+		    MLX5_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->mdev->priv.cq_uar_lock));
 
 	return 0;
 }
@@ -586,7 +586,7 @@ static int alloc_cq_buf(struct mlx5_ib_dev *dev, struct mlx5_ib_cq_buf *buf,
 {
 	int err;
 
-	err = mlx5_buf_alloc(&dev->mdev, nent * cqe_size,
+	err = mlx5_buf_alloc(dev->mdev, nent * cqe_size,
 			     PAGE_SIZE * 2, &buf->buf);
 	if (err)
 		return err;
@@ -691,7 +691,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 {
 	int err;
 
-	err = mlx5_db_alloc(&dev->mdev, &cq->db);
+	err = mlx5_db_alloc(dev->mdev, &cq->db);
 	if (err)
 		return err;
 
@@ -716,7 +716,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 	mlx5_fill_page_array(&cq->buf.buf, (*cqb)->pas);
 
 	(*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
-	*index = dev->mdev.priv.uuari.uars[0].index;
+	*index = dev->mdev->priv.uuari.uars[0].index;
 
 	return 0;
 
@@ -724,14 +724,14 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 	free_cq_buf(dev, &cq->buf);
 
 err_db:
-	mlx5_db_free(&dev->mdev, &cq->db);
+	mlx5_db_free(dev->mdev, &cq->db);
 	return err;
 }
 
 static void destroy_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq)
 {
 	free_cq_buf(dev, &cq->buf);
-	mlx5_db_free(&dev->mdev, &cq->db);
+	mlx5_db_free(dev->mdev, &cq->db);
 }
 
 struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
@@ -752,7 +752,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
 		return ERR_PTR(-EINVAL);
 
 	entries = roundup_pow_of_two(entries + 1);
-	if (entries > dev->mdev.caps.max_cqes)
+	if (entries > dev->mdev->caps.max_cqes)
 		return ERR_PTR(-EINVAL);
 
 	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
@@ -789,7 +789,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
 	cqb->ctx.c_eqn = cpu_to_be16(eqn);
 	cqb->ctx.db_record_addr = cpu_to_be64(cq->db.dma);
 
-	err = mlx5_core_create_cq(&dev->mdev, &cq->mcq, cqb, inlen);
+	err = mlx5_core_create_cq(dev->mdev, &cq->mcq, cqb, inlen);
 	if (err)
 		goto err_cqb;
 
@@ -809,7 +809,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
 	return &cq->ibcq;
 
 err_cmd:
-	mlx5_core_destroy_cq(&dev->mdev, &cq->mcq);
+	mlx5_core_destroy_cq(dev->mdev, &cq->mcq);
 
 err_cqb:
 	mlx5_vfree(cqb);
@@ -834,7 +834,7 @@ int mlx5_ib_destroy_cq(struct ib_cq *cq)
 	if (cq->uobject)
 		context = cq->uobject->context;
 
-	mlx5_core_destroy_cq(&dev->mdev, &mcq->mcq);
+	mlx5_core_destroy_cq(dev->mdev, &mcq->mcq);
 	if (context)
 		destroy_cq_user(mcq, context);
 	else
@@ -919,7 +919,7 @@ int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
 	int err;
 	u32 fsel;
 
-	if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_CQ_MODER))
+	if (!(dev->mdev->caps.flags & MLX5_DEV_CAP_FLAG_CQ_MODER))
 		return -ENOSYS;
 
 	in = kzalloc(sizeof(*in), GFP_KERNEL);
@@ -931,7 +931,7 @@ int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
 	in->ctx.cq_period = cpu_to_be16(cq_period);
 	in->ctx.cq_max_count = cpu_to_be16(cq_count);
 	in->field_select = cpu_to_be32(fsel);
-	err = mlx5_core_modify_cq(&dev->mdev, &mcq->mcq, in, sizeof(*in));
+	err = mlx5_core_modify_cq(dev->mdev, &mcq->mcq, in, sizeof(*in));
 	kfree(in);
 
 	if (err)
@@ -1074,7 +1074,7 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 	int uninitialized_var(cqe_size);
 	unsigned long flags;
 
-	if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_RESIZE_CQ)) {
+	if (!(dev->mdev->caps.flags & MLX5_DEV_CAP_FLAG_RESIZE_CQ)) {
 		pr_info("Firmware does not support resize CQ\n");
 		return -ENOSYS;
 	}
@@ -1083,7 +1083,7 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 		return -EINVAL;
 
 	entries = roundup_pow_of_two(entries + 1);
-	if (entries > dev->mdev.caps.max_cqes + 1)
+	if (entries > dev->mdev->caps.max_cqes + 1)
 		return -EINVAL;
 
 	if (entries == ibcq->cqe + 1)
@@ -1128,7 +1128,7 @@ int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 	in->hdr.opmod = cpu_to_be16(MLX5_CQ_OPMOD_RESIZE);
 	in->cqn = cpu_to_be32(cq->mcq.cqn);
 
-	err = mlx5_core_modify_cq(&dev->mdev, &cq->mcq, in, inlen);
+	err = mlx5_core_modify_cq(dev->mdev, &cq->mcq, in, inlen);
 	if (err)
 		goto ex_alloc;
 

drivers/infiniband/hw/mlx5/mad.c

@@ -54,7 +54,7 @@ int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey,
 	if (ignore_bkey || !in_wc)
 		op_modifier |= 0x2;
 
-	return mlx5_core_mad_ifc(&dev->mdev, in_mad, response_mad, op_modifier, port);
+	return mlx5_core_mad_ifc(dev->mdev, in_mad, response_mad, op_modifier, port);
 }
 
 int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
@@ -129,7 +129,7 @@ int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port)
 
 	packet_error = be16_to_cpu(out_mad->status);
 
-	dev->mdev.caps.ext_port_cap[port - 1] = (!err && !packet_error) ?
+	dev->mdev->caps.ext_port_cap[port - 1] = (!err && !packet_error) ?
 		MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO : 0;
 
 out:

drivers/infiniband/hw/mlx5/mlx5_ib.h

@@ -360,7 +360,7 @@ struct mlx5_ib_resources {
 
 struct mlx5_ib_dev {
 	struct ib_device		ib_dev;
-	struct mlx5_core_dev		mdev;
+	struct mlx5_core_dev		*mdev;
 	MLX5_DECLARE_DOORBELL_LOCK(uar_lock);
 	struct list_head		eqs_list;
 	int				num_ports;
@@ -454,16 +454,6 @@ static inline struct mlx5_ib_ah *to_mah(struct ib_ah *ibah)
 	return container_of(ibah, struct mlx5_ib_ah, ibah);
 }
 
-static inline struct mlx5_ib_dev *mlx5_core2ibdev(struct mlx5_core_dev *dev)
-{
-	return container_of(dev, struct mlx5_ib_dev, mdev);
-}
-
-static inline struct mlx5_ib_dev *mlx5_pci2ibdev(struct pci_dev *pdev)
-{
-	return mlx5_core2ibdev(pci2mlx5_core_dev(pdev));
-}
-
 int mlx5_ib_db_map_user(struct mlx5_ib_ucontext *context, unsigned long virt,
 			struct mlx5_db *db);
 void mlx5_ib_db_unmap_user(struct mlx5_ib_ucontext *context, struct mlx5_db *db);

drivers/infiniband/hw/mlx5/mr.c

@@ -73,7 +73,7 @@ static void reg_mr_callback(int status, void *context)
 	struct mlx5_cache_ent *ent = &cache->ent[c];
 	u8 key;
 	unsigned long flags;
-	struct mlx5_mr_table *table = &dev->mdev.priv.mr_table;
+	struct mlx5_mr_table *table = &dev->mdev->priv.mr_table;
 	int err;
 
 	spin_lock_irqsave(&ent->lock, flags);
@@ -97,9 +97,9 @@ static void reg_mr_callback(int status, void *context)
 		return;
 	}
 
-	spin_lock_irqsave(&dev->mdev.priv.mkey_lock, flags);
-	key = dev->mdev.priv.mkey_key++;
-	spin_unlock_irqrestore(&dev->mdev.priv.mkey_lock, flags);
+	spin_lock_irqsave(&dev->mdev->priv.mkey_lock, flags);
+	key = dev->mdev->priv.mkey_key++;
+	spin_unlock_irqrestore(&dev->mdev->priv.mkey_lock, flags);
 	mr->mmr.key = mlx5_idx_to_mkey(be32_to_cpu(mr->out.mkey) & 0xffffff) | key;
 
 	cache->last_add = jiffies;
@@ -155,7 +155,7 @@ static int add_keys(struct mlx5_ib_dev *dev, int c, int num)
 		spin_lock_irq(&ent->lock);
 		ent->pending++;
 		spin_unlock_irq(&ent->lock);
-		err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in,
+		err = mlx5_core_create_mkey(dev->mdev, &mr->mmr, in,
 					    sizeof(*in), reg_mr_callback,
 					    mr, &mr->out);
 		if (err) {
@@ -188,7 +188,7 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num)
 		ent->cur--;
 		ent->size--;
 		spin_unlock_irq(&ent->lock);
-		err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
+		err = mlx5_core_destroy_mkey(dev->mdev, &mr->mmr);
 		if (err)
 			mlx5_ib_warn(dev, "failed destroy mkey\n");
 		else
@@ -479,7 +479,7 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c)
 		ent->cur--;
 		ent->size--;
 		spin_unlock_irq(&ent->lock);
-		err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
+		err = mlx5_core_destroy_mkey(dev->mdev, &mr->mmr);
 		if (err)
 			mlx5_ib_warn(dev, "failed destroy mkey\n");
 		else
@@ -496,7 +496,7 @@ static int mlx5_mr_cache_debugfs_init(struct mlx5_ib_dev *dev)
 	if (!mlx5_debugfs_root)
 		return 0;
 
-	cache->root = debugfs_create_dir("mr_cache", dev->mdev.priv.dbg_root);
+	cache->root = debugfs_create_dir("mr_cache", dev->mdev->priv.dbg_root);
 	if (!cache->root)
 		return -ENOMEM;
 
@@ -571,8 +571,8 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 		ent->order = i + 2;
 		ent->dev = dev;
 
-		if (dev->mdev.profile->mask & MLX5_PROF_MASK_MR_CACHE)
-			limit = dev->mdev.profile->mr_cache[i].limit;
+		if (dev->mdev->profile->mask & MLX5_PROF_MASK_MR_CACHE)
+			limit = dev->mdev->profile->mr_cache[i].limit;
 		else
 			limit = 0;
 
@@ -610,7 +610,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
 struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc)
 {
 	struct mlx5_ib_dev *dev = to_mdev(pd->device);
-	struct mlx5_core_dev *mdev = &dev->mdev;
+	struct mlx5_core_dev *mdev = dev->mdev;
 	struct mlx5_create_mkey_mbox_in *in;
 	struct mlx5_mkey_seg *seg;
 	struct mlx5_ib_mr *mr;
@@ -846,7 +846,7 @@ static struct mlx5_ib_mr *reg_create(struct ib_pd *pd, u64 virt_addr,
 	in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
 	in->xlat_oct_act_size = cpu_to_be32(get_octo_len(virt_addr, length,
 							 1 << page_shift));
-	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, inlen, NULL,
+	err = mlx5_core_create_mkey(dev->mdev, &mr->mmr, in, inlen, NULL,
 				    NULL, NULL);
 	if (err) {
 		mlx5_ib_warn(dev, "create mkey failed\n");
@@ -923,7 +923,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 	mr->umem = umem;
 	mr->npages = npages;
 	spin_lock(&dev->mr_lock);
-	dev->mdev.priv.reg_pages += npages;
+	dev->mdev->priv.reg_pages += npages;
 	spin_unlock(&dev->mr_lock);
 	mr->ibmr.lkey = mr->mmr.key;
 	mr->ibmr.rkey = mr->mmr.key;
@@ -978,7 +978,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
 	int err;
 
 	if (!umred) {
-		err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
+		err = mlx5_core_destroy_mkey(dev->mdev, &mr->mmr);
 		if (err) {
 			mlx5_ib_warn(dev, "failed to destroy mkey 0x%x (%d)\n",
 				     mr->mmr.key, err);
@@ -996,7 +996,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
 	if (umem) {
 		ib_umem_release(umem);
 		spin_lock(&dev->mr_lock);
-		dev->mdev.priv.reg_pages -= npages;
+		dev->mdev->priv.reg_pages -= npages;
 		spin_unlock(&dev->mr_lock);
 	}
 
@@ -1044,7 +1044,7 @@ struct ib_mr *mlx5_ib_create_mr(struct ib_pd *pd,
 		}
 
 		/* create mem & wire PSVs */
-		err = mlx5_core_create_psv(&dev->mdev, to_mpd(pd)->pdn,
+		err = mlx5_core_create_psv(dev->mdev, to_mpd(pd)->pdn,
 					   2, psv_index);
 		if (err)
 			goto err_free_sig;
@@ -1060,7 +1060,7 @@ struct ib_mr *mlx5_ib_create_mr(struct ib_pd *pd,
 	}
 
 	in->seg.flags = MLX5_PERM_UMR_EN | access_mode;
-	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in),
+	err = mlx5_core_create_mkey(dev->mdev, &mr->mmr, in, sizeof(*in),
 				    NULL, NULL, NULL);
 	if (err)
 		goto err_destroy_psv;
@@ -1074,11 +1074,11 @@ struct ib_mr *mlx5_ib_create_mr(struct ib_pd *pd,
 
 err_destroy_psv:
 	if (mr->sig) {
-		if (mlx5_core_destroy_psv(&dev->mdev,
+		if (mlx5_core_destroy_psv(dev->mdev,
 					  mr->sig->psv_memory.psv_idx))
 			mlx5_ib_warn(dev, "failed to destroy mem psv %d\n",
 				     mr->sig->psv_memory.psv_idx);
-		if (mlx5_core_destroy_psv(&dev->mdev,
+		if (mlx5_core_destroy_psv(dev->mdev,
 					  mr->sig->psv_wire.psv_idx))
 			mlx5_ib_warn(dev, "failed to destroy wire psv %d\n",
 				     mr->sig->psv_wire.psv_idx);
@@ -1099,18 +1099,18 @@ int mlx5_ib_destroy_mr(struct ib_mr *ibmr)
 	int err;
 
 	if (mr->sig) {
-		if (mlx5_core_destroy_psv(&dev->mdev,
+		if (mlx5_core_destroy_psv(dev->mdev,
 					  mr->sig->psv_memory.psv_idx))
 			mlx5_ib_warn(dev, "failed to destroy mem psv %d\n",
 				     mr->sig->psv_memory.psv_idx);
-		if (mlx5_core_destroy_psv(&dev->mdev,
+		if (mlx5_core_destroy_psv(dev->mdev,
 					  mr->sig->psv_wire.psv_idx))
 			mlx5_ib_warn(dev, "failed to destroy wire psv %d\n",
 				     mr->sig->psv_wire.psv_idx);
 		kfree(mr->sig);
 	}
 
-	err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
+	err = mlx5_core_destroy_mkey(dev->mdev, &mr->mmr);
 	if (err) {
 		mlx5_ib_warn(dev, "failed to destroy mkey 0x%x (%d)\n",
 			     mr->mmr.key, err);
@@ -1149,7 +1149,7 @@ struct ib_mr *mlx5_ib_alloc_fast_reg_mr(struct ib_pd *pd,
 	 * TBD not needed - issue 197292 */
 	in->seg.log2_page_size = PAGE_SHIFT;
 
-	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in), NULL,
+	err = mlx5_core_create_mkey(dev->mdev, &mr->mmr, in, sizeof(*in), NULL,
 				    NULL, NULL);
 	kfree(in);
 	if (err)
@@ -1202,7 +1202,7 @@ void mlx5_ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list)
 	struct mlx5_ib_dev *dev = to_mdev(page_list->device);
 	int size = page_list->max_page_list_len * sizeof(u64);
 
-	dma_free_coherent(&dev->mdev.pdev->dev, size, mfrpl->mapped_page_list,
+	dma_free_coherent(&dev->mdev->pdev->dev, size, mfrpl->mapped_page_list,
 			  mfrpl->map);
 	kfree(mfrpl->ibfrpl.page_list);
 	kfree(mfrpl);

drivers/infiniband/hw/mlx5/srq.c

@@ -159,7 +159,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 	int page_shift;
 	int npages;
 
-	err = mlx5_db_alloc(&dev->mdev, &srq->db);
+	err = mlx5_db_alloc(dev->mdev, &srq->db);
 	if (err) {
 		mlx5_ib_warn(dev, "alloc dbell rec failed\n");
 		return err;
@@ -167,7 +167,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 
 	*srq->db.db = 0;
 
-	if (mlx5_buf_alloc(&dev->mdev, buf_size, PAGE_SIZE * 2, &srq->buf)) {
+	if (mlx5_buf_alloc(dev->mdev, buf_size, PAGE_SIZE * 2, &srq->buf)) {
 		mlx5_ib_dbg(dev, "buf alloc failed\n");
 		err = -ENOMEM;
 		goto err_db;
@@ -212,10 +212,10 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 	mlx5_vfree(*in);
 
 err_buf:
-	mlx5_buf_free(&dev->mdev, &srq->buf);
+	mlx5_buf_free(dev->mdev, &srq->buf);
 
 err_db:
-	mlx5_db_free(&dev->mdev, &srq->db);
+	mlx5_db_free(dev->mdev, &srq->db);
 	return err;
 }
 
@@ -229,8 +229,8 @@ static void destroy_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq)
 static void destroy_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq)
 {
 	kfree(srq->wrid);
-	mlx5_buf_free(&dev->mdev, &srq->buf);
-	mlx5_db_free(&dev->mdev, &srq->db);
+	mlx5_buf_free(dev->mdev, &srq->buf);
+	mlx5_db_free(dev->mdev, &srq->db);
 }
 
 struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
@@ -248,10 +248,10 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 	u32 flgs, xrcdn;
 
 	/* Sanity check SRQ size before proceeding */
-	if (init_attr->attr.max_wr >= dev->mdev.caps.max_srq_wqes) {
+	if (init_attr->attr.max_wr >= dev->mdev->caps.max_srq_wqes) {
 		mlx5_ib_dbg(dev, "max_wr %d, cap %d\n",
 			    init_attr->attr.max_wr,
-			    dev->mdev.caps.max_srq_wqes);
+			    dev->mdev->caps.max_srq_wqes);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -303,7 +303,7 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 
 	in->ctx.pd = cpu_to_be32(to_mpd(pd)->pdn);
 	in->ctx.db_record = cpu_to_be64(srq->db.dma);
-	err = mlx5_core_create_srq(&dev->mdev, &srq->msrq, in, inlen);
+	err = mlx5_core_create_srq(dev->mdev, &srq->msrq, in, inlen);
 	mlx5_vfree(in);
 	if (err) {
 		mlx5_ib_dbg(dev, "create SRQ failed, err %d\n", err);
@@ -327,7 +327,7 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
 	return &srq->ibsrq;
 
 err_core:
-	mlx5_core_destroy_srq(&dev->mdev, &srq->msrq);
+	mlx5_core_destroy_srq(dev->mdev, &srq->msrq);
 
 err_usr_kern_srq:
 	if (pd->uobject)
@@ -357,7 +357,7 @@ int mlx5_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 			return -EINVAL;
 
 		mutex_lock(&srq->mutex);
-		ret = mlx5_core_arm_srq(&dev->mdev, &srq->msrq, attr->srq_limit, 1);
+		ret = mlx5_core_arm_srq(dev->mdev, &srq->msrq, attr->srq_limit, 1);
 		mutex_unlock(&srq->mutex);
 
 		if (ret)
@@ -378,7 +378,7 @@ int mlx5_ib_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr)
 	if (!out)
 		return -ENOMEM;
 
-	ret = mlx5_core_query_srq(&dev->mdev, &srq->msrq, out);
+	ret = mlx5_core_query_srq(dev->mdev, &srq->msrq, out);
 	if (ret)
 		goto out_box;
 
@@ -396,7 +396,7 @@ int mlx5_ib_destroy_srq(struct ib_srq *srq)
 	struct mlx5_ib_dev *dev = to_mdev(srq->device);
 	struct mlx5_ib_srq *msrq = to_msrq(srq);
 
-	mlx5_core_destroy_srq(&dev->mdev, &msrq->msrq);
+	mlx5_core_destroy_srq(dev->mdev, &msrq->msrq);
 
 	if (srq->uobject) {
 		mlx5_ib_db_unmap_user(to_mucontext(srq->uobject->context), &msrq->db);

drivers/net/ethernet/mellanox/mlx5/core/main.c

@@ -58,7 +58,100 @@ int mlx5_core_debug_mask;
 module_param_named(debug_mask, mlx5_core_debug_mask, int, 0644);
 MODULE_PARM_DESC(debug_mask, "debug mask: 1 = dump cmd data, 2 = dump cmd exec time, 3 = both. Default=0");
 
+#define MLX5_DEFAULT_PROF	2
+static int prof_sel = MLX5_DEFAULT_PROF;
+module_param_named(prof_sel, prof_sel, int, 0444);
+MODULE_PARM_DESC(prof_sel, "profile selector. Valid range 0 - 2");
+
 struct workqueue_struct *mlx5_core_wq;
+static LIST_HEAD(intf_list);
+static LIST_HEAD(dev_list);
+static DEFINE_MUTEX(intf_mutex);
+
+struct mlx5_device_context {
+	struct list_head	list;
+	struct mlx5_interface  *intf;
+	void		       *context;
+};
+
+static struct mlx5_profile profile[] = {
+	[0] = {
+		.mask           = 0,
+	},
+	[1] = {
+		.mask		= MLX5_PROF_MASK_QP_SIZE,
+		.log_max_qp	= 12,
+	},
+	[2] = {
+		.mask		= MLX5_PROF_MASK_QP_SIZE |
+				  MLX5_PROF_MASK_MR_CACHE,
+		.log_max_qp	= 17,
+		.mr_cache[0]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[1]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[2]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[3]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[4]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[5]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[6]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[7]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[8]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[9]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[10]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[11]	= {
+			.size	= 500,
+			.limit	= 250
+		},
+		.mr_cache[12]	= {
+			.size	= 64,
+			.limit	= 32
+		},
+		.mr_cache[13]	= {
+			.size	= 32,
+			.limit	= 16
+		},
+		.mr_cache[14]	= {
+			.size	= 16,
+			.limit	= 8
+		},
+		.mr_cache[15]	= {
+			.size	= 8,
+			.limit	= 4
+		},
+	},
+};
 
 static int set_dma_caps(struct pci_dev *pdev)
 {
@@ -299,7 +392,7 @@ static int mlx5_core_disable_hca(struct mlx5_core_dev *dev)
 	return 0;
 }
 
-int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
+static int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
 {
 	struct mlx5_priv *priv = &dev->priv;
 	int err;
@@ -489,7 +582,7 @@ int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev)
 }
 EXPORT_SYMBOL(mlx5_dev_init);
 
-void mlx5_dev_cleanup(struct mlx5_core_dev *dev)
+static void mlx5_dev_cleanup(struct mlx5_core_dev *dev)
 {
 	struct mlx5_priv *priv = &dev->priv;
 
@@ -516,7 +609,190 @@ void mlx5_dev_cleanup(struct mlx5_core_dev *dev)
 	pci_disable_device(dev->pdev);
 	debugfs_remove(priv->dbg_root);
 }
-EXPORT_SYMBOL(mlx5_dev_cleanup);
+
+static void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv)
+{
+	struct mlx5_device_context *dev_ctx;
+	struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv);
+
+	dev_ctx = kmalloc(sizeof(*dev_ctx), GFP_KERNEL);
+	if (!dev_ctx) {
+		pr_warn("mlx5_add_device: alloc context failed\n");
+		return;
+	}
+
+	dev_ctx->intf    = intf;
+	dev_ctx->context = intf->add(dev);
+
+	if (dev_ctx->context) {
+		spin_lock_irq(&priv->ctx_lock);
+		list_add_tail(&dev_ctx->list, &priv->ctx_list);
+		spin_unlock_irq(&priv->ctx_lock);
+	} else {
+		kfree(dev_ctx);
+	}
+}
+
+static void mlx5_remove_device(struct mlx5_interface *intf, struct mlx5_priv *priv)
+{
+	struct mlx5_device_context *dev_ctx;
+	struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv);
+
+	list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+		if (dev_ctx->intf == intf) {
+			spin_lock_irq(&priv->ctx_lock);
+			list_del(&dev_ctx->list);
+			spin_unlock_irq(&priv->ctx_lock);
+
+			intf->remove(dev, dev_ctx->context);
+			kfree(dev_ctx);
+			return;
+		}
+}
+static int mlx5_register_device(struct mlx5_core_dev *dev)
+{
+	struct mlx5_priv *priv = &dev->priv;
+	struct mlx5_interface *intf;
+
+	mutex_lock(&intf_mutex);
+	list_add_tail(&priv->dev_list, &dev_list);
+	list_for_each_entry(intf, &intf_list, list)
+		mlx5_add_device(intf, priv);
+	mutex_unlock(&intf_mutex);
+
+	return 0;
+}
+static void mlx5_unregister_device(struct mlx5_core_dev *dev)
+{
+	struct mlx5_priv *priv = &dev->priv;
+	struct mlx5_interface *intf;
+
+	mutex_lock(&intf_mutex);
+	list_for_each_entry(intf, &intf_list, list)
+		mlx5_remove_device(intf, priv);
+	list_del(&priv->dev_list);
+	mutex_unlock(&intf_mutex);
+}
+
+int mlx5_register_interface(struct mlx5_interface *intf)
+{
+	struct mlx5_priv *priv;
+
+	if (!intf->add || !intf->remove)
+		return -EINVAL;
+
+	mutex_lock(&intf_mutex);
+	list_add_tail(&intf->list, &intf_list);
+	list_for_each_entry(priv, &dev_list, dev_list)
+		mlx5_add_device(intf, priv);
+	mutex_unlock(&intf_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL(mlx5_register_interface);
+
+void mlx5_unregister_interface(struct mlx5_interface *intf)
+{
+	struct mlx5_priv *priv;
+
+	mutex_lock(&intf_mutex);
+	list_for_each_entry(priv, &dev_list, dev_list)
+	       mlx5_remove_device(intf, priv);
+	list_del(&intf->list);
+	mutex_unlock(&intf_mutex);
+}
+EXPORT_SYMBOL(mlx5_unregister_interface);
+
+static void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event,
+			    void *data)
+{
+	struct mlx5_priv *priv = &dev->priv;
+	struct mlx5_device_context *dev_ctx;
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->ctx_lock, flags);
+
+	list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+		if (dev_ctx->intf->event)
+			dev_ctx->intf->event(dev, dev_ctx->context, event, data);
+
+	spin_unlock_irqrestore(&priv->ctx_lock, flags);
+}
+
+struct mlx5_core_event_handler {
+	void (*event)(struct mlx5_core_dev *dev,
+		      enum mlx5_dev_event event,
+		      void *data);
+};
+
+static int init_one(struct pci_dev *pdev,
+		    const struct pci_device_id *id)
+{
+	struct mlx5_core_dev *dev;
+	struct mlx5_priv *priv;
+	int err;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		dev_err(&pdev->dev, "kzalloc failed\n");
+		return -ENOMEM;
+	}
+	priv = &dev->priv;
+
+	pci_set_drvdata(pdev, dev);
+
+	if (prof_sel < 0 || prof_sel >= ARRAY_SIZE(profile)) {
+		pr_warn("selected profile out of range, selecting default (%d)\n",
+			MLX5_DEFAULT_PROF);
+		prof_sel = MLX5_DEFAULT_PROF;
+	}
+	dev->profile = &profile[prof_sel];
+	dev->event = mlx5_core_event;
+
+	err = mlx5_dev_init(dev, pdev);
+	if (err) {
+		dev_err(&pdev->dev, "mlx5_dev_init failed %d\n", err);
+		goto out;
+	}
+
+	INIT_LIST_HEAD(&priv->ctx_list);
+	spin_lock_init(&priv->ctx_lock);
+	err = mlx5_register_device(dev);
+	if (err) {
+		dev_err(&pdev->dev, "mlx5_register_device failed %d\n", err);
+		goto out_init;
+	}
+
+	return 0;
+
+out_init:
+	mlx5_dev_cleanup(dev);
+out:
+	kfree(dev);
+	return err;
+}
+static void remove_one(struct pci_dev *pdev)
+{
+	struct mlx5_core_dev *dev  = pci_get_drvdata(pdev);
+
+	mlx5_unregister_device(dev);
+	mlx5_dev_cleanup(dev);
+	kfree(dev);
+}
+
+static const struct pci_device_id mlx5_core_pci_table[] = {
+	{ PCI_VDEVICE(MELLANOX, 4113) }, /* MT4113 Connect-IB */
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mlx5_core_pci_table);
+
+static struct pci_driver mlx5_core_driver = {
+	.name           = DRIVER_NAME,
+	.id_table       = mlx5_core_pci_table,
+	.probe          = init_one,
+	.remove         = remove_one
+};
 
 static int __init init(void)
 {
@@ -530,8 +806,15 @@ static int __init init(void)
 	}
 	mlx5_health_init();
 
+	err = pci_register_driver(&mlx5_core_driver);
+	if (err)
+		goto err_health;
+
 	return 0;
 
+err_health:
+	mlx5_health_cleanup();
+	destroy_workqueue(mlx5_core_wq);
 err_debug:
 	mlx5_unregister_debugfs();
 	return err;
@@ -539,6 +822,7 @@ static int __init init(void)
 
 static void __exit cleanup(void)
 {
+	pci_unregister_driver(&mlx5_core_driver);
 	mlx5_health_cleanup();
 	destroy_workqueue(mlx5_core_wq);
 	mlx5_unregister_debugfs();

include/linux/mlx5/driver.h

@@ -543,6 +543,10 @@ struct mlx5_priv {
 	/* protect mkey key part */
 	spinlock_t		mkey_lock;
 	u8			mkey_key;
+
+	struct list_head        dev_list;
+	struct list_head        ctx_list;
+	spinlock_t              ctx_lock;
 };
 
 struct mlx5_core_dev {
@@ -686,8 +690,6 @@ static inline u32 mlx5_base_mkey(const u32 key)
 	return key & 0xffffff00u;
 }
 
-int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev);
-void mlx5_dev_cleanup(struct mlx5_core_dev *dev);
 int mlx5_cmd_init(struct mlx5_core_dev *dev);
 void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
 void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
@@ -811,6 +813,17 @@ enum {
 	MAX_MR_CACHE_ENTRIES    = 16,
 };
 
+struct mlx5_interface {
+	void *			(*add)(struct mlx5_core_dev *dev);
+	void			(*remove)(struct mlx5_core_dev *dev, void *context);
+	void			(*event)(struct mlx5_core_dev *dev, void *context,
+					 enum mlx5_dev_event event, void *data);
+	struct list_head	list;
+};
+
+int mlx5_register_interface(struct mlx5_interface *intf);
+void mlx5_unregister_interface(struct mlx5_interface *intf);
+
 struct mlx5_profile {
 	u64	mask;
 	u32	log_max_qp;