mlx4: Move the Mellanox driver

Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and
make the necessary Kconfig and Makefile changes.

CC: Roland Dreier <roland@kernel.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

1 files changed, 0 insertions, 487 deletions

diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c
deleted file mode 100644
index 609e0ec14ce..00000000000
--- a/drivers/net/mlx4/port.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/*
- * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- *     Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *      - Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *
- *      - Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and/or other materials
- *        provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-
-#include <linux/errno.h>
-#include <linux/if_ether.h>
-
-#include <linux/mlx4/cmd.h>
-
-#include "mlx4.h"
-
-#define MLX4_MAC_VALID		(1ull << 63)
-#define MLX4_MAC_MASK		0xffffffffffffULL
-
-#define MLX4_VLAN_VALID		(1u << 31)
-#define MLX4_VLAN_MASK		0xfff
-
-void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table)
-{
-	int i;
-
-	mutex_init(&table->mutex);
-	for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
-		table->entries[i] = 0;
-		table->refs[i]	 = 0;
-	}
-	table->max   = 1 << dev->caps.log_num_macs;
-	table->total = 0;
-}
-
-void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table)
-{
-	int i;
-
-	mutex_init(&table->mutex);
-	for (i = 0; i < MLX4_MAX_VLAN_NUM; i++) {
-		table->entries[i] = 0;
-		table->refs[i]	 = 0;
-	}
-	table->max   = 1 << dev->caps.log_num_vlans;
-	table->total = 0;
-}
-
-static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port,
-				   __be64 *entries)
-{
-	struct mlx4_cmd_mailbox *mailbox;
-	u32 in_mod;
-	int err;
-
-	mailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(mailbox))
-		return PTR_ERR(mailbox);
-
-	memcpy(mailbox->buf, entries, MLX4_MAC_TABLE_SIZE);
-
-	in_mod = MLX4_SET_PORT_MAC_TABLE << 8 | port;
-	err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
-		       MLX4_CMD_TIME_CLASS_B);
-
-	mlx4_free_cmd_mailbox(dev, mailbox);
-	return err;
-}
-
-static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port,
-			     u64 mac, int *qpn, u8 reserve)
-{
-	struct mlx4_qp qp;
-	u8 gid[16] = {0};
-	int err;
-
-	if (reserve) {
-		err = mlx4_qp_reserve_range(dev, 1, 1, qpn);
-		if (err) {
-			mlx4_err(dev, "Failed to reserve qp for mac registration\n");
-			return err;
-		}
-	}
-	qp.qpn = *qpn;
-
-	mac &= 0xffffffffffffULL;
-	mac = cpu_to_be64(mac << 16);
-	memcpy(&gid[10], &mac, ETH_ALEN);
-	gid[5] = port;
-	gid[7] = MLX4_UC_STEER << 1;
-
-	err = mlx4_qp_attach_common(dev, &qp, gid, 0,
-				    MLX4_PROT_ETH, MLX4_UC_STEER);
-	if (err && reserve)
-		mlx4_qp_release_range(dev, *qpn, 1);
-
-	return err;
-}
-
-static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port,
-				  u64 mac, int qpn, u8 free)
-{
-	struct mlx4_qp qp;
-	u8 gid[16] = {0};
-
-	qp.qpn = qpn;
-	mac &= 0xffffffffffffULL;
-	mac = cpu_to_be64(mac << 16);
-	memcpy(&gid[10], &mac, ETH_ALEN);
-	gid[5] = port;
-	gid[7] = MLX4_UC_STEER << 1;
-
-	mlx4_qp_detach_common(dev, &qp, gid, MLX4_PROT_ETH, MLX4_UC_STEER);
-	if (free)
-		mlx4_qp_release_range(dev, qpn, 1);
-}
-
-int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn, u8 wrap)
-{
-	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
-	struct mlx4_mac_table *table = &info->mac_table;
-	struct mlx4_mac_entry *entry;
-	int i, err = 0;
-	int free = -1;
-
-	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
-		err = mlx4_uc_steer_add(dev, port, mac, qpn, 1);
-		if (!err) {
-			entry = kmalloc(sizeof *entry, GFP_KERNEL);
-			if (!entry) {
-				mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
-				return -ENOMEM;
-			}
-			entry->mac = mac;
-			err = radix_tree_insert(&info->mac_tree, *qpn, entry);
-			if (err) {
-				mlx4_uc_steer_release(dev, port, mac, *qpn, 1);
-				return err;
-			}
-		} else
-			return err;
-	}
-	mlx4_dbg(dev, "Registering MAC: 0x%llx\n", (unsigned long long) mac);
-	mutex_lock(&table->mutex);
-	for (i = 0; i < MLX4_MAX_MAC_NUM - 1; i++) {
-		if (free < 0 && !table->refs[i]) {
-			free = i;
-			continue;
-		}
-
-		if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) {
-			/* MAC already registered, increase references count */
-			++table->refs[i];
-			goto out;
-		}
-	}
-
-	if (free < 0) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	mlx4_dbg(dev, "Free MAC index is %d\n", free);
-
-	if (table->total == table->max) {
-		/* No free mac entries */
-		err = -ENOSPC;
-		goto out;
-	}
-
-	/* Register new MAC */
-	table->refs[free] = 1;
-	table->entries[free] = cpu_to_be64(mac | MLX4_MAC_VALID);
-
-	err = mlx4_set_port_mac_table(dev, port, table->entries);
-	if (unlikely(err)) {
-		mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) mac);
-		table->refs[free] = 0;
-		table->entries[free] = 0;
-		goto out;
-	}
-
-	if (!(dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER))
-		*qpn = info->base_qpn + free;
-	++table->total;
-out:
-	mutex_unlock(&table->mutex);
-	return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_register_mac);
-
-static int validate_index(struct mlx4_dev *dev,
-			  struct mlx4_mac_table *table, int index)
-{
-	int err = 0;
-
-	if (index < 0 || index >= table->max || !table->entries[index]) {
-		mlx4_warn(dev, "No valid Mac entry for the given index\n");
-		err = -EINVAL;
-	}
-	return err;
-}
-
-static int find_index(struct mlx4_dev *dev,
-		      struct mlx4_mac_table *table, u64 mac)
-{
-	int i;
-	for (i = 0; i < MLX4_MAX_MAC_NUM; i++) {
-		if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i])))
-			return i;
-	}
-	/* Mac not found */
-	return -EINVAL;
-}
-
-void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int qpn)
-{
-	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
-	struct mlx4_mac_table *table = &info->mac_table;
-	int index = qpn - info->base_qpn;
-	struct mlx4_mac_entry *entry;
-
-	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
-		entry = radix_tree_lookup(&info->mac_tree, qpn);
-		if (entry) {
-			mlx4_uc_steer_release(dev, port, entry->mac, qpn, 1);
-			radix_tree_delete(&info->mac_tree, qpn);
-			index = find_index(dev, table, entry->mac);
-			kfree(entry);
-		}
-	}
-
-	mutex_lock(&table->mutex);
-
-	if (validate_index(dev, table, index))
-		goto out;
-
-	/* Check whether this address has reference count */
-	if (!(--table->refs[index])) {
-		table->entries[index] = 0;
-		mlx4_set_port_mac_table(dev, port, table->entries);
-		--table->total;
-	}
-out:
-	mutex_unlock(&table->mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_unregister_mac);
-
-int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac, u8 wrap)
-{
-	struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
-	struct mlx4_mac_table *table = &info->mac_table;
-	int index = qpn - info->base_qpn;
-	struct mlx4_mac_entry *entry;
-	int err;
-
-	if (dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER) {
-		entry = radix_tree_lookup(&info->mac_tree, qpn);
-		if (!entry)
-			return -EINVAL;
-		index = find_index(dev, table, entry->mac);
-		mlx4_uc_steer_release(dev, port, entry->mac, qpn, 0);
-		entry->mac = new_mac;
-		err = mlx4_uc_steer_add(dev, port, entry->mac, &qpn, 0);
-		if (err || index < 0)
-			return err;
-	}
-
-	mutex_lock(&table->mutex);
-
-	err = validate_index(dev, table, index);
-	if (err)
-		goto out;
-
-	table->entries[index] = cpu_to_be64(new_mac | MLX4_MAC_VALID);
-
-	err = mlx4_set_port_mac_table(dev, port, table->entries);
-	if (unlikely(err)) {
-		mlx4_err(dev, "Failed adding MAC: 0x%llx\n", (unsigned long long) new_mac);
-		table->entries[index] = 0;
-	}
-out:
-	mutex_unlock(&table->mutex);
-	return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_replace_mac);
-static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
-				    __be32 *entries)
-{
-	struct mlx4_cmd_mailbox *mailbox;
-	u32 in_mod;
-	int err;
-
-	mailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(mailbox))
-		return PTR_ERR(mailbox);
-
-	memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
-	in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
-	err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
-		       MLX4_CMD_TIME_CLASS_B);
-
-	mlx4_free_cmd_mailbox(dev, mailbox);
-
-	return err;
-}
-
-int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx)
-{
-	struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
-	int i;
-
-	for (i = 0; i < MLX4_MAX_VLAN_NUM; ++i) {
-		if (table->refs[i] &&
-		    (vid == (MLX4_VLAN_MASK &
-			      be32_to_cpu(table->entries[i])))) {
-			/* VLAN already registered, increase reference count */
-			*idx = i;
-			return 0;
-		}
-	}
-
-	return -ENOENT;
-}
-EXPORT_SYMBOL_GPL(mlx4_find_cached_vlan);
-
-int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
-{
-	struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
-	int i, err = 0;
-	int free = -1;
-
-	mutex_lock(&table->mutex);
-	for (i = MLX4_VLAN_REGULAR; i < MLX4_MAX_VLAN_NUM; i++) {
-		if (free < 0 && (table->refs[i] == 0)) {
-			free = i;
-			continue;
-		}
-
-		if (table->refs[i] &&
-		    (vlan == (MLX4_VLAN_MASK &
-			      be32_to_cpu(table->entries[i])))) {
-			/* Vlan already registered, increase references count */
-			*index = i;
-			++table->refs[i];
-			goto out;
-		}
-	}
-
-	if (free < 0) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	if (table->total == table->max) {
-		/* No free vlan entries */
-		err = -ENOSPC;
-		goto out;
-	}
-
-	/* Register new MAC */
-	table->refs[free] = 1;
-	table->entries[free] = cpu_to_be32(vlan | MLX4_VLAN_VALID);
-
-	err = mlx4_set_port_vlan_table(dev, port, table->entries);
-	if (unlikely(err)) {
-		mlx4_warn(dev, "Failed adding vlan: %u\n", vlan);
-		table->refs[free] = 0;
-		table->entries[free] = 0;
-		goto out;
-	}
-
-	*index = free;
-	++table->total;
-out:
-	mutex_unlock(&table->mutex);
-	return err;
-}
-EXPORT_SYMBOL_GPL(mlx4_register_vlan);
-
-void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
-{
-	struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
-
-	if (index < MLX4_VLAN_REGULAR) {
-		mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
-		return;
-	}
-
-	mutex_lock(&table->mutex);
-	if (!table->refs[index]) {
-		mlx4_warn(dev, "No vlan entry for index %d\n", index);
-		goto out;
-	}
-	if (--table->refs[index]) {
-		mlx4_dbg(dev, "Have more references for index %d,"
-			 "no need to modify vlan table\n", index);
-		goto out;
-	}
-	table->entries[index] = 0;
-	mlx4_set_port_vlan_table(dev, port, table->entries);
-	--table->total;
-out:
-	mutex_unlock(&table->mutex);
-}
-EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
-
-int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
-{
-	struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
-	u8 *inbuf, *outbuf;
-	int err;
-
-	inmailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(inmailbox))
-		return PTR_ERR(inmailbox);
-
-	outmailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(outmailbox)) {
-		mlx4_free_cmd_mailbox(dev, inmailbox);
-		return PTR_ERR(outmailbox);
-	}
-
-	inbuf = inmailbox->buf;
-	outbuf = outmailbox->buf;
-	memset(inbuf, 0, 256);
-	memset(outbuf, 0, 256);
-	inbuf[0] = 1;
-	inbuf[1] = 1;
-	inbuf[2] = 1;
-	inbuf[3] = 1;
-	*(__be16 *) (&inbuf[16]) = cpu_to_be16(0x0015);
-	*(__be32 *) (&inbuf[20]) = cpu_to_be32(port);
-
-	err = mlx4_cmd_box(dev, inmailbox->dma, outmailbox->dma, port, 3,
-			   MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
-	if (!err)
-		*caps = *(__be32 *) (outbuf + 84);
-	mlx4_free_cmd_mailbox(dev, inmailbox);
-	mlx4_free_cmd_mailbox(dev, outmailbox);
-	return err;
-}
-
-int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port)
-{
-	struct mlx4_cmd_mailbox *mailbox;
-	int err;
-
-	if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
-		return 0;
-
-	mailbox = mlx4_alloc_cmd_mailbox(dev);
-	if (IS_ERR(mailbox))
-		return PTR_ERR(mailbox);
-
-	memset(mailbox->buf, 0, 256);
-
-	((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
-	err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
-		       MLX4_CMD_TIME_CLASS_B);
-
-	mlx4_free_cmd_mailbox(dev, mailbox);
-	return err;
-}