2007-05-09 01:00:38 +00:00
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/*
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* Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
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2008-07-25 17:32:52 +00:00
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* Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
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2007-05-09 01:00:38 +00:00
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/string.h>
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2011-03-22 22:38:17 +00:00
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#include <linux/etherdevice.h>
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2007-05-09 01:00:38 +00:00
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#include <linux/mlx4/cmd.h>
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#include "mlx4.h"
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2008-07-15 06:48:48 +00:00
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#define MGM_QPN_MASK 0x00FFFFFF
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#define MGM_BLCK_LB_BIT 30
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2007-05-09 01:00:38 +00:00
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static const u8 zero_gid[16]; /* automatically initialized to 0 */
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2011-03-22 22:38:17 +00:00
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static int mlx4_READ_ENTRY(struct mlx4_dev *dev, int index,
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struct mlx4_cmd_mailbox *mailbox)
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2007-05-09 01:00:38 +00:00
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{
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return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
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MLX4_CMD_TIME_CLASS_A);
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}
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2011-03-22 22:38:17 +00:00
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static int mlx4_WRITE_ENTRY(struct mlx4_dev *dev, int index,
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struct mlx4_cmd_mailbox *mailbox)
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2007-05-09 01:00:38 +00:00
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{
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return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
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MLX4_CMD_TIME_CLASS_A);
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}
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2011-03-22 22:38:24 +00:00
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static int mlx4_WRITE_PROMISC(struct mlx4_dev *dev, u8 vep_num, u8 port, u8 steer,
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struct mlx4_cmd_mailbox *mailbox)
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{
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u32 in_mod;
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in_mod = (u32) vep_num << 24 | (u32) port << 16 | steer << 1;
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return mlx4_cmd(dev, mailbox->dma, in_mod, 0x1,
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MLX4_CMD_WRITE_MCG, MLX4_CMD_TIME_CLASS_A);
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}
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2011-03-22 22:38:17 +00:00
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static int mlx4_GID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
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u16 *hash, u8 op_mod)
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2007-05-09 01:00:38 +00:00
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{
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u64 imm;
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int err;
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2011-03-22 22:38:17 +00:00
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err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, op_mod,
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MLX4_CMD_MGID_HASH, MLX4_CMD_TIME_CLASS_A);
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2007-05-09 01:00:38 +00:00
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if (!err)
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*hash = imm;
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return err;
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}
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2011-03-22 22:38:24 +00:00
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static struct mlx4_promisc_qp *get_promisc_qp(struct mlx4_dev *dev, u8 pf_num,
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enum mlx4_steer_type steer,
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u32 qpn)
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{
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struct mlx4_steer *s_steer = &mlx4_priv(dev)->steer[pf_num];
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struct mlx4_promisc_qp *pqp;
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list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
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if (pqp->qpn == qpn)
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return pqp;
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}
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/* not found */
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return NULL;
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}
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/*
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* Add new entry to steering data structure.
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* All promisc QPs should be added as well
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*/
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static int new_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
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enum mlx4_steer_type steer,
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unsigned int index, u32 qpn)
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{
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struct mlx4_steer *s_steer;
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struct mlx4_cmd_mailbox *mailbox;
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struct mlx4_mgm *mgm;
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u32 members_count;
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struct mlx4_steer_index *new_entry;
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struct mlx4_promisc_qp *pqp;
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struct mlx4_promisc_qp *dqp;
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u32 prot;
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int err;
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u8 pf_num;
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pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
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s_steer = &mlx4_priv(dev)->steer[pf_num];
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new_entry = kzalloc(sizeof *new_entry, GFP_KERNEL);
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if (!new_entry)
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return -ENOMEM;
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INIT_LIST_HEAD(&new_entry->duplicates);
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new_entry->index = index;
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list_add_tail(&new_entry->list, &s_steer->steer_entries[steer]);
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/* If the given qpn is also a promisc qp,
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* it should be inserted to duplicates list
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*/
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pqp = get_promisc_qp(dev, pf_num, steer, qpn);
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if (pqp) {
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dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
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if (!dqp) {
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err = -ENOMEM;
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goto out_alloc;
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}
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dqp->qpn = qpn;
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list_add_tail(&dqp->list, &new_entry->duplicates);
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}
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/* if no promisc qps for this vep, we are done */
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if (list_empty(&s_steer->promisc_qps[steer]))
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return 0;
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/* now need to add all the promisc qps to the new
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* steering entry, as they should also receive the packets
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* destined to this address */
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mailbox = mlx4_alloc_cmd_mailbox(dev);
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if (IS_ERR(mailbox)) {
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err = -ENOMEM;
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goto out_alloc;
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}
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mgm = mailbox->buf;
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err = mlx4_READ_ENTRY(dev, index, mailbox);
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if (err)
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goto out_mailbox;
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members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
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prot = be32_to_cpu(mgm->members_count) >> 30;
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list_for_each_entry(pqp, &s_steer->promisc_qps[steer], list) {
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/* don't add already existing qpn */
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if (pqp->qpn == qpn)
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continue;
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if (members_count == MLX4_QP_PER_MGM) {
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/* out of space */
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err = -ENOMEM;
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goto out_mailbox;
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}
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/* add the qpn */
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mgm->qp[members_count++] = cpu_to_be32(pqp->qpn & MGM_QPN_MASK);
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}
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/* update the qps count and update the entry with all the promisc qps*/
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mgm->members_count = cpu_to_be32(members_count | (prot << 30));
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err = mlx4_WRITE_ENTRY(dev, index, mailbox);
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out_mailbox:
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mlx4_free_cmd_mailbox(dev, mailbox);
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if (!err)
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return 0;
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out_alloc:
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if (dqp) {
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list_del(&dqp->list);
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kfree(&dqp);
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}
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list_del(&new_entry->list);
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kfree(new_entry);
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return err;
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}
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/* update the data structures with existing steering entry */
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static int existing_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
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enum mlx4_steer_type steer,
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unsigned int index, u32 qpn)
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{
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struct mlx4_steer *s_steer;
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struct mlx4_steer_index *tmp_entry, *entry = NULL;
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struct mlx4_promisc_qp *pqp;
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struct mlx4_promisc_qp *dqp;
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u8 pf_num;
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pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
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s_steer = &mlx4_priv(dev)->steer[pf_num];
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pqp = get_promisc_qp(dev, pf_num, steer, qpn);
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if (!pqp)
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return 0; /* nothing to do */
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list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
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if (tmp_entry->index == index) {
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entry = tmp_entry;
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break;
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}
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}
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if (unlikely(!entry)) {
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mlx4_warn(dev, "Steering entry at index %x is not registered\n", index);
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return -EINVAL;
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}
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/* the given qpn is listed as a promisc qpn
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* we need to add it as a duplicate to this entry
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* for future refernce */
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list_for_each_entry(dqp, &entry->duplicates, list) {
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if (qpn == dqp->qpn)
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return 0; /* qp is already duplicated */
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}
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/* add the qp as a duplicate on this index */
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dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
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if (!dqp)
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return -ENOMEM;
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dqp->qpn = qpn;
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list_add_tail(&dqp->list, &entry->duplicates);
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return 0;
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}
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/* Check whether a qpn is a duplicate on steering entry
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* If so, it should not be removed from mgm */
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static bool check_duplicate_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
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enum mlx4_steer_type steer,
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unsigned int index, u32 qpn)
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{
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struct mlx4_steer *s_steer;
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struct mlx4_steer_index *tmp_entry, *entry = NULL;
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struct mlx4_promisc_qp *dqp, *tmp_dqp;
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u8 pf_num;
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pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
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s_steer = &mlx4_priv(dev)->steer[pf_num];
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/* if qp is not promisc, it cannot be duplicated */
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if (!get_promisc_qp(dev, pf_num, steer, qpn))
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return false;
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/* The qp is promisc qp so it is a duplicate on this index
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* Find the index entry, and remove the duplicate */
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list_for_each_entry(tmp_entry, &s_steer->steer_entries[steer], list) {
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if (tmp_entry->index == index) {
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entry = tmp_entry;
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break;
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}
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}
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if (unlikely(!entry)) {
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mlx4_warn(dev, "Steering entry for index %x is not registered\n", index);
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return false;
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}
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list_for_each_entry_safe(dqp, tmp_dqp, &entry->duplicates, list) {
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if (dqp->qpn == qpn) {
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list_del(&dqp->list);
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kfree(dqp);
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}
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}
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return true;
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}
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/* I a steering entry contains only promisc QPs, it can be removed. */
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static bool can_remove_steering_entry(struct mlx4_dev *dev, u8 vep_num, u8 port,
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enum mlx4_steer_type steer,
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unsigned int index, u32 tqpn)
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{
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struct mlx4_steer *s_steer;
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struct mlx4_cmd_mailbox *mailbox;
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struct mlx4_mgm *mgm;
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struct mlx4_steer_index *entry = NULL, *tmp_entry;
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u32 qpn;
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u32 members_count;
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bool ret = false;
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int i;
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u8 pf_num;
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pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
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s_steer = &mlx4_priv(dev)->steer[pf_num];
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mailbox = mlx4_alloc_cmd_mailbox(dev);
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if (IS_ERR(mailbox))
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return false;
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mgm = mailbox->buf;
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if (mlx4_READ_ENTRY(dev, index, mailbox))
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goto out;
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members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
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for (i = 0; i < members_count; i++) {
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qpn = be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK;
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if (!get_promisc_qp(dev, pf_num, steer, qpn) && qpn != tqpn) {
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/* the qp is not promisc, the entry can't be removed */
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goto out;
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}
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}
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/* All the qps currently registered for this entry are promiscuous,
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* Checking for duplicates */
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ret = true;
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list_for_each_entry_safe(entry, tmp_entry, &s_steer->steer_entries[steer], list) {
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if (entry->index == index) {
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if (list_empty(&entry->duplicates)) {
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list_del(&entry->list);
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kfree(entry);
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} else {
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/* This entry contains duplicates so it shouldn't be removed */
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ret = false;
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goto out;
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}
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}
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}
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out:
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mlx4_free_cmd_mailbox(dev, mailbox);
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return ret;
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}
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static int add_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
|
|
|
|
enum mlx4_steer_type steer, u32 qpn)
|
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|
|
{
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struct mlx4_steer *s_steer;
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struct mlx4_cmd_mailbox *mailbox;
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struct mlx4_mgm *mgm;
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|
|
struct mlx4_steer_index *entry;
|
|
|
|
struct mlx4_promisc_qp *pqp;
|
|
|
|
struct mlx4_promisc_qp *dqp;
|
|
|
|
u32 members_count;
|
|
|
|
u32 prot;
|
|
|
|
int i;
|
|
|
|
bool found;
|
|
|
|
int last_index;
|
|
|
|
int err;
|
|
|
|
u8 pf_num;
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
|
|
|
|
s_steer = &mlx4_priv(dev)->steer[pf_num];
|
|
|
|
|
|
|
|
mutex_lock(&priv->mcg_table.mutex);
|
|
|
|
|
|
|
|
if (get_promisc_qp(dev, pf_num, steer, qpn)) {
|
|
|
|
err = 0; /* Noting to do, already exists */
|
|
|
|
goto out_mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
pqp = kmalloc(sizeof *pqp, GFP_KERNEL);
|
|
|
|
if (!pqp) {
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto out_mutex;
|
|
|
|
}
|
|
|
|
pqp->qpn = qpn;
|
|
|
|
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
|
|
|
if (IS_ERR(mailbox)) {
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto out_alloc;
|
|
|
|
}
|
|
|
|
mgm = mailbox->buf;
|
|
|
|
|
|
|
|
/* the promisc qp needs to be added for each one of the steering
|
|
|
|
* entries, if it already exists, needs to be added as a duplicate
|
|
|
|
* for this entry */
|
|
|
|
list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
|
|
|
|
err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_mailbox;
|
|
|
|
|
|
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
|
|
|
prot = be32_to_cpu(mgm->members_count) >> 30;
|
|
|
|
found = false;
|
|
|
|
for (i = 0; i < members_count; i++) {
|
|
|
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn) {
|
|
|
|
/* Entry already exists, add to duplicates */
|
|
|
|
dqp = kmalloc(sizeof *dqp, GFP_KERNEL);
|
|
|
|
if (!dqp)
|
|
|
|
goto out_mailbox;
|
|
|
|
dqp->qpn = qpn;
|
|
|
|
list_add_tail(&dqp->list, &entry->duplicates);
|
|
|
|
found = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!found) {
|
|
|
|
/* Need to add the qpn to mgm */
|
|
|
|
if (members_count == MLX4_QP_PER_MGM) {
|
|
|
|
/* entry is full */
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto out_mailbox;
|
|
|
|
}
|
|
|
|
mgm->qp[members_count++] = cpu_to_be32(qpn & MGM_QPN_MASK);
|
|
|
|
mgm->members_count = cpu_to_be32(members_count | (prot << 30));
|
|
|
|
err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_mailbox;
|
|
|
|
}
|
|
|
|
last_index = entry->index;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* add the new qpn to list of promisc qps */
|
|
|
|
list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
|
|
|
|
/* now need to add all the promisc qps to default entry */
|
|
|
|
memset(mgm, 0, sizeof *mgm);
|
|
|
|
members_count = 0;
|
|
|
|
list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
|
|
|
|
mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
|
|
|
|
mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
|
|
|
|
|
|
|
|
err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_list;
|
|
|
|
|
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
out_list:
|
|
|
|
list_del(&pqp->list);
|
|
|
|
out_mailbox:
|
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
out_alloc:
|
|
|
|
kfree(pqp);
|
|
|
|
out_mutex:
|
|
|
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int remove_promisc_qp(struct mlx4_dev *dev, u8 vep_num, u8 port,
|
|
|
|
enum mlx4_steer_type steer, u32 qpn)
|
|
|
|
{
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
struct mlx4_steer *s_steer;
|
|
|
|
struct mlx4_cmd_mailbox *mailbox;
|
|
|
|
struct mlx4_mgm *mgm;
|
|
|
|
struct mlx4_steer_index *entry;
|
|
|
|
struct mlx4_promisc_qp *pqp;
|
|
|
|
struct mlx4_promisc_qp *dqp;
|
|
|
|
u32 members_count;
|
|
|
|
bool found;
|
|
|
|
bool back_to_list = false;
|
|
|
|
int loc, i;
|
|
|
|
int err;
|
|
|
|
u8 pf_num;
|
|
|
|
|
|
|
|
pf_num = (dev->caps.num_ports == 1) ? vep_num : (vep_num << 1) | (port - 1);
|
|
|
|
s_steer = &mlx4_priv(dev)->steer[pf_num];
|
|
|
|
mutex_lock(&priv->mcg_table.mutex);
|
|
|
|
|
|
|
|
pqp = get_promisc_qp(dev, pf_num, steer, qpn);
|
|
|
|
if (unlikely(!pqp)) {
|
|
|
|
mlx4_warn(dev, "QP %x is not promiscuous QP\n", qpn);
|
|
|
|
/* nothing to do */
|
|
|
|
err = 0;
|
|
|
|
goto out_mutex;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*remove from list of promisc qps */
|
|
|
|
list_del(&pqp->list);
|
|
|
|
kfree(pqp);
|
|
|
|
|
|
|
|
/* set the default entry not to include the removed one */
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
|
|
|
if (IS_ERR(mailbox)) {
|
|
|
|
err = -ENOMEM;
|
|
|
|
back_to_list = true;
|
|
|
|
goto out_list;
|
|
|
|
}
|
|
|
|
mgm = mailbox->buf;
|
|
|
|
members_count = 0;
|
|
|
|
list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
|
|
|
|
mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
|
|
|
|
mgm->members_count = cpu_to_be32(members_count | MLX4_PROT_ETH << 30);
|
|
|
|
|
|
|
|
err = mlx4_WRITE_PROMISC(dev, vep_num, port, steer, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_mailbox;
|
|
|
|
|
|
|
|
/* remove the qp from all the steering entries*/
|
|
|
|
list_for_each_entry(entry, &s_steer->steer_entries[steer], list) {
|
|
|
|
found = false;
|
|
|
|
list_for_each_entry(dqp, &entry->duplicates, list) {
|
|
|
|
if (dqp->qpn == qpn) {
|
|
|
|
found = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (found) {
|
|
|
|
/* a duplicate, no need to change the mgm,
|
|
|
|
* only update the duplicates list */
|
|
|
|
list_del(&dqp->list);
|
|
|
|
kfree(dqp);
|
|
|
|
} else {
|
|
|
|
err = mlx4_READ_ENTRY(dev, entry->index, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_mailbox;
|
|
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
|
|
|
for (loc = -1, i = 0; i < members_count; ++i)
|
|
|
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qpn)
|
|
|
|
loc = i;
|
|
|
|
|
|
|
|
mgm->members_count = cpu_to_be32(--members_count |
|
|
|
|
(MLX4_PROT_ETH << 30));
|
|
|
|
mgm->qp[loc] = mgm->qp[i - 1];
|
|
|
|
mgm->qp[i - 1] = 0;
|
|
|
|
|
|
|
|
err = mlx4_WRITE_ENTRY(dev, entry->index, mailbox);
|
|
|
|
if (err)
|
|
|
|
goto out_mailbox;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
out_mailbox:
|
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
out_list:
|
|
|
|
if (back_to_list)
|
|
|
|
list_add_tail(&pqp->list, &s_steer->promisc_qps[steer]);
|
|
|
|
out_mutex:
|
|
|
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2007-05-09 01:00:38 +00:00
|
|
|
/*
|
|
|
|
* Caller must hold MCG table semaphore. gid and mgm parameters must
|
|
|
|
* be properly aligned for command interface.
|
|
|
|
*
|
|
|
|
* Returns 0 unless a firmware command error occurs.
|
|
|
|
*
|
|
|
|
* If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
|
|
|
|
* and *mgm holds MGM entry.
|
|
|
|
*
|
|
|
|
* if GID is found in AMGM, *index = index in AMGM, *prev = index of
|
|
|
|
* previous entry in hash chain and *mgm holds AMGM entry.
|
|
|
|
*
|
|
|
|
* If no AMGM exists for given gid, *index = -1, *prev = index of last
|
|
|
|
* entry in hash chain and *mgm holds end of hash chain.
|
|
|
|
*/
|
2011-03-22 22:38:17 +00:00
|
|
|
static int find_entry(struct mlx4_dev *dev, u8 port,
|
|
|
|
u8 *gid, enum mlx4_protocol prot,
|
|
|
|
enum mlx4_steer_type steer,
|
|
|
|
struct mlx4_cmd_mailbox *mgm_mailbox,
|
|
|
|
u16 *hash, int *prev, int *index)
|
2007-05-09 01:00:38 +00:00
|
|
|
{
|
|
|
|
struct mlx4_cmd_mailbox *mailbox;
|
|
|
|
struct mlx4_mgm *mgm = mgm_mailbox->buf;
|
|
|
|
u8 *mgid;
|
|
|
|
int err;
|
2011-03-22 22:38:17 +00:00
|
|
|
u8 op_mod = (prot == MLX4_PROT_ETH) ? !!(dev->caps.vep_mc_steering) : 0;
|
2007-05-09 01:00:38 +00:00
|
|
|
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
|
|
|
if (IS_ERR(mailbox))
|
|
|
|
return -ENOMEM;
|
|
|
|
mgid = mailbox->buf;
|
|
|
|
|
|
|
|
memcpy(mgid, gid, 16);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_GID_HASH(dev, mailbox, hash, op_mod);
|
2007-05-09 01:00:38 +00:00
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
if (0)
|
2008-10-29 19:52:50 +00:00
|
|
|
mlx4_dbg(dev, "Hash for %pI6 is %04x\n", gid, *hash);
|
2007-05-09 01:00:38 +00:00
|
|
|
|
|
|
|
*index = *hash;
|
|
|
|
*prev = -1;
|
|
|
|
|
|
|
|
do {
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_READ_ENTRY(dev, *index, mgm_mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
|
2007-05-09 01:00:38 +00:00
|
|
|
if (*index != *hash) {
|
|
|
|
mlx4_err(dev, "Found zero MGID in AMGM.\n");
|
|
|
|
err = -EINVAL;
|
|
|
|
}
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2010-12-02 11:44:49 +00:00
|
|
|
if (!memcmp(mgm->gid, gid, 16) &&
|
2011-03-22 22:38:17 +00:00
|
|
|
be32_to_cpu(mgm->members_count) >> 30 == prot)
|
2007-05-09 01:00:38 +00:00
|
|
|
return err;
|
|
|
|
|
|
|
|
*prev = *index;
|
|
|
|
*index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
|
|
|
} while (*index);
|
|
|
|
|
|
|
|
*index = -1;
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
|
|
|
int block_mcast_loopback, enum mlx4_protocol prot,
|
|
|
|
enum mlx4_steer_type steer)
|
2007-05-09 01:00:38 +00:00
|
|
|
{
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
struct mlx4_cmd_mailbox *mailbox;
|
|
|
|
struct mlx4_mgm *mgm;
|
|
|
|
u32 members_count;
|
|
|
|
u16 hash;
|
|
|
|
int index, prev;
|
|
|
|
int link = 0;
|
|
|
|
int i;
|
|
|
|
int err;
|
2011-03-22 22:38:17 +00:00
|
|
|
u8 port = gid[5];
|
2011-03-22 22:38:24 +00:00
|
|
|
u8 new_entry = 0;
|
2007-05-09 01:00:38 +00:00
|
|
|
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
|
|
|
if (IS_ERR(mailbox))
|
|
|
|
return PTR_ERR(mailbox);
|
|
|
|
mgm = mailbox->buf;
|
|
|
|
|
|
|
|
mutex_lock(&priv->mcg_table.mutex);
|
2011-03-22 22:38:17 +00:00
|
|
|
err = find_entry(dev, port, gid, prot, steer,
|
|
|
|
mailbox, &hash, &prev, &index);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (index != -1) {
|
2011-03-22 22:38:24 +00:00
|
|
|
if (!(be32_to_cpu(mgm->members_count) & 0xffffff)) {
|
|
|
|
new_entry = 1;
|
2007-05-09 01:00:38 +00:00
|
|
|
memcpy(mgm->gid, gid, 16);
|
2011-03-22 22:38:24 +00:00
|
|
|
}
|
2007-05-09 01:00:38 +00:00
|
|
|
} else {
|
|
|
|
link = 1;
|
|
|
|
|
|
|
|
index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
|
|
|
|
if (index == -1) {
|
|
|
|
mlx4_err(dev, "No AMGM entries left\n");
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
index += dev->caps.num_mgms;
|
|
|
|
|
|
|
|
memset(mgm, 0, sizeof *mgm);
|
|
|
|
memcpy(mgm->gid, gid, 16);
|
|
|
|
}
|
|
|
|
|
2010-12-02 11:44:49 +00:00
|
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
2007-05-09 01:00:38 +00:00
|
|
|
if (members_count == MLX4_QP_PER_MGM) {
|
|
|
|
mlx4_err(dev, "MGM at index %x is full.\n", index);
|
|
|
|
err = -ENOMEM;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < members_count; ++i)
|
2008-07-15 06:48:48 +00:00
|
|
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn) {
|
2007-05-09 01:00:38 +00:00
|
|
|
mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
|
|
|
|
err = 0;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2008-07-15 06:48:48 +00:00
|
|
|
if (block_mcast_loopback)
|
|
|
|
mgm->qp[members_count++] = cpu_to_be32((qp->qpn & MGM_QPN_MASK) |
|
2008-11-26 00:57:59 +00:00
|
|
|
(1U << MGM_BLCK_LB_BIT));
|
2008-07-15 06:48:48 +00:00
|
|
|
else
|
|
|
|
mgm->qp[members_count++] = cpu_to_be32(qp->qpn & MGM_QPN_MASK);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
mgm->members_count = cpu_to_be32(members_count | (u32) prot << 30);
|
2007-05-09 01:00:38 +00:00
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (!link)
|
|
|
|
goto out;
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_READ_ENTRY(dev, prev, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
mgm->next_gid_index = cpu_to_be32(index << 6);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
out:
|
2011-03-22 22:38:24 +00:00
|
|
|
if (prot == MLX4_PROT_ETH) {
|
|
|
|
/* manage the steering entry for promisc mode */
|
|
|
|
if (new_entry)
|
|
|
|
new_steering_entry(dev, 0, port, steer, index, qp->qpn);
|
|
|
|
else
|
|
|
|
existing_steering_entry(dev, 0, port, steer,
|
|
|
|
index, qp->qpn);
|
|
|
|
}
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err && link && index != -1) {
|
|
|
|
if (index < dev->caps.num_mgms)
|
|
|
|
mlx4_warn(dev, "Got AMGM index %d < %d",
|
|
|
|
index, dev->caps.num_mgms);
|
|
|
|
else
|
|
|
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
|
|
|
index - dev->caps.num_mgms);
|
|
|
|
}
|
|
|
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
|
|
|
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
|
|
|
enum mlx4_protocol prot, enum mlx4_steer_type steer)
|
2007-05-09 01:00:38 +00:00
|
|
|
{
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
struct mlx4_cmd_mailbox *mailbox;
|
|
|
|
struct mlx4_mgm *mgm;
|
|
|
|
u32 members_count;
|
|
|
|
u16 hash;
|
|
|
|
int prev, index;
|
|
|
|
int i, loc;
|
|
|
|
int err;
|
2011-03-22 22:38:17 +00:00
|
|
|
u8 port = gid[5];
|
2011-03-22 22:38:24 +00:00
|
|
|
bool removed_entry = false;
|
2007-05-09 01:00:38 +00:00
|
|
|
|
|
|
|
mailbox = mlx4_alloc_cmd_mailbox(dev);
|
|
|
|
if (IS_ERR(mailbox))
|
|
|
|
return PTR_ERR(mailbox);
|
|
|
|
mgm = mailbox->buf;
|
|
|
|
|
|
|
|
mutex_lock(&priv->mcg_table.mutex);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = find_entry(dev, port, gid, prot, steer,
|
|
|
|
mailbox, &hash, &prev, &index);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (index == -1) {
|
2008-10-29 19:52:50 +00:00
|
|
|
mlx4_err(dev, "MGID %pI6 not found\n", gid);
|
2007-05-09 01:00:38 +00:00
|
|
|
err = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
2011-03-22 22:38:24 +00:00
|
|
|
/* if this pq is also a promisc qp, it shouldn't be removed */
|
|
|
|
if (prot == MLX4_PROT_ETH &&
|
|
|
|
check_duplicate_entry(dev, 0, port, steer, index, qp->qpn))
|
|
|
|
goto out;
|
|
|
|
|
2010-12-02 11:44:49 +00:00
|
|
|
members_count = be32_to_cpu(mgm->members_count) & 0xffffff;
|
2007-05-09 01:00:38 +00:00
|
|
|
for (loc = -1, i = 0; i < members_count; ++i)
|
2008-07-15 06:48:48 +00:00
|
|
|
if ((be32_to_cpu(mgm->qp[i]) & MGM_QPN_MASK) == qp->qpn)
|
2007-05-09 01:00:38 +00:00
|
|
|
loc = i;
|
|
|
|
|
|
|
|
if (loc == -1) {
|
|
|
|
mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
|
|
|
|
err = -EINVAL;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
mgm->members_count = cpu_to_be32(--members_count | (u32) prot << 30);
|
2007-05-09 01:00:38 +00:00
|
|
|
mgm->qp[loc] = mgm->qp[i - 1];
|
|
|
|
mgm->qp[i - 1] = 0;
|
|
|
|
|
2011-03-22 22:38:24 +00:00
|
|
|
if (prot == MLX4_PROT_ETH)
|
|
|
|
removed_entry = can_remove_steering_entry(dev, 0, port, steer, index, qp->qpn);
|
|
|
|
if (i != 1 && (prot != MLX4_PROT_ETH || !removed_entry)) {
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
goto out;
|
2008-04-17 04:09:35 +00:00
|
|
|
}
|
2007-05-09 01:00:38 +00:00
|
|
|
|
2011-03-22 22:38:24 +00:00
|
|
|
/* We are going to delete the entry, members count should be 0 */
|
|
|
|
mgm->members_count = cpu_to_be32((u32) prot << 30);
|
|
|
|
|
2007-05-09 01:00:38 +00:00
|
|
|
if (prev == -1) {
|
|
|
|
/* Remove entry from MGM */
|
|
|
|
int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
|
|
|
if (amgm_index) {
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_READ_ENTRY(dev, amgm_index, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
} else
|
|
|
|
memset(mgm->gid, 0, 16);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_WRITE_ENTRY(dev, index, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (amgm_index) {
|
|
|
|
if (amgm_index < dev->caps.num_mgms)
|
|
|
|
mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d",
|
|
|
|
index, amgm_index, dev->caps.num_mgms);
|
|
|
|
else
|
|
|
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
|
|
|
amgm_index - dev->caps.num_mgms);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* Remove entry from AMGM */
|
|
|
|
int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_READ_ENTRY(dev, prev, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
|
|
|
|
|
2011-03-22 22:38:17 +00:00
|
|
|
err = mlx4_WRITE_ENTRY(dev, prev, mailbox);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
if (index < dev->caps.num_mgms)
|
|
|
|
mlx4_warn(dev, "entry %d had next AMGM index %d < %d",
|
|
|
|
prev, index, dev->caps.num_mgms);
|
|
|
|
else
|
|
|
|
mlx4_bitmap_free(&priv->mcg_table.bitmap,
|
|
|
|
index - dev->caps.num_mgms);
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
mutex_unlock(&priv->mcg_table.mutex);
|
|
|
|
|
|
|
|
mlx4_free_cmd_mailbox(dev, mailbox);
|
|
|
|
return err;
|
|
|
|
}
|
2011-03-22 22:38:17 +00:00
|
|
|
|
|
|
|
|
|
|
|
int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
|
|
|
int block_mcast_loopback, enum mlx4_protocol prot)
|
|
|
|
{
|
|
|
|
enum mlx4_steer_type steer;
|
|
|
|
|
|
|
|
steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
|
|
|
|
|
|
|
|
if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (prot == MLX4_PROT_ETH)
|
|
|
|
gid[7] |= (steer << 1);
|
|
|
|
|
|
|
|
return mlx4_qp_attach_common(dev, qp, gid,
|
|
|
|
block_mcast_loopback, prot,
|
|
|
|
steer);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
|
|
|
|
|
|
|
|
int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
|
|
|
|
enum mlx4_protocol prot)
|
|
|
|
{
|
|
|
|
enum mlx4_steer_type steer;
|
|
|
|
|
|
|
|
steer = (is_valid_ether_addr(&gid[10])) ? MLX4_UC_STEER : MLX4_MC_STEER;
|
|
|
|
|
|
|
|
if (prot == MLX4_PROT_ETH && !dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (prot == MLX4_PROT_ETH) {
|
|
|
|
gid[7] |= (steer << 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
return mlx4_qp_detach_common(dev, qp, gid, prot, steer);
|
|
|
|
}
|
2007-05-09 01:00:38 +00:00
|
|
|
EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
|
|
|
|
|
2011-03-22 22:38:24 +00:00
|
|
|
|
|
|
|
int mlx4_multicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
|
|
|
|
{
|
|
|
|
if (!dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
return add_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_add);
|
|
|
|
|
|
|
|
int mlx4_multicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
|
|
|
|
{
|
|
|
|
if (!dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
return remove_promisc_qp(dev, 0, port, MLX4_MC_STEER, qpn);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mlx4_multicast_promisc_remove);
|
|
|
|
|
|
|
|
int mlx4_unicast_promisc_add(struct mlx4_dev *dev, u32 qpn, u8 port)
|
|
|
|
{
|
|
|
|
if (!dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
|
|
|
|
return add_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_add);
|
|
|
|
|
|
|
|
int mlx4_unicast_promisc_remove(struct mlx4_dev *dev, u32 qpn, u8 port)
|
|
|
|
{
|
|
|
|
if (!dev->caps.vep_mc_steering)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
return remove_promisc_qp(dev, 0, port, MLX4_UC_STEER, qpn);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL_GPL(mlx4_unicast_promisc_remove);
|
|
|
|
|
2007-10-10 22:43:54 +00:00
|
|
|
int mlx4_init_mcg_table(struct mlx4_dev *dev)
|
2007-05-09 01:00:38 +00:00
|
|
|
{
|
|
|
|
struct mlx4_priv *priv = mlx4_priv(dev);
|
|
|
|
int err;
|
|
|
|
|
2008-10-22 17:25:29 +00:00
|
|
|
err = mlx4_bitmap_init(&priv->mcg_table.bitmap, dev->caps.num_amgms,
|
|
|
|
dev->caps.num_amgms - 1, 0, 0);
|
2007-05-09 01:00:38 +00:00
|
|
|
if (err)
|
|
|
|
return err;
|
|
|
|
|
|
|
|
mutex_init(&priv->mcg_table.mutex);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
|
|
|
|
{
|
|
|
|
mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);
|
|
|
|
}
|