| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. |
| * All rights reserved. |
| * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. 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/sched.h> |
| #include <linux/pci.h> |
| #include <linux/errno.h> |
| #include <linux/kernel.h> |
| #include <linux/io.h> |
| #include <linux/mlx4/cmd.h> |
| #include <linux/mlx4/qp.h> |
| |
| #include "mlx4.h" |
| #include "fw.h" |
| |
| #define MLX4_MAC_VALID (1ull << 63) |
| #define MLX4_MAC_MASK 0x7fffffffffffffffULL |
| #define ETH_ALEN 6 |
| |
| struct mac_res { |
| struct list_head list; |
| u64 mac; |
| u8 port; |
| }; |
| |
| struct res_common { |
| struct list_head list; |
| u32 res_id; |
| int owner; |
| int state; |
| int from_state; |
| int to_state; |
| int removing; |
| }; |
| |
| enum { |
| RES_ANY_BUSY = 1 |
| }; |
| |
| struct res_gid { |
| struct list_head list; |
| u8 gid[16]; |
| enum mlx4_protocol prot; |
| }; |
| |
| enum res_qp_states { |
| RES_QP_BUSY = RES_ANY_BUSY, |
| |
| /* QP number was allocated */ |
| RES_QP_RESERVED, |
| |
| /* ICM memory for QP context was mapped */ |
| RES_QP_MAPPED, |
| |
| /* QP is in hw ownership */ |
| RES_QP_HW |
| }; |
| |
| static inline const char *qp_states_str(enum res_qp_states state) |
| { |
| switch (state) { |
| case RES_QP_BUSY: return "RES_QP_BUSY"; |
| case RES_QP_RESERVED: return "RES_QP_RESERVED"; |
| case RES_QP_MAPPED: return "RES_QP_MAPPED"; |
| case RES_QP_HW: return "RES_QP_HW"; |
| default: return "Unknown"; |
| } |
| } |
| |
| struct res_qp { |
| struct res_common com; |
| struct res_mtt *mtt; |
| struct res_cq *rcq; |
| struct res_cq *scq; |
| struct res_srq *srq; |
| struct list_head mcg_list; |
| spinlock_t mcg_spl; |
| int local_qpn; |
| }; |
| |
| enum res_mtt_states { |
| RES_MTT_BUSY = RES_ANY_BUSY, |
| RES_MTT_ALLOCATED, |
| }; |
| |
| static inline const char *mtt_states_str(enum res_mtt_states state) |
| { |
| switch (state) { |
| case RES_MTT_BUSY: return "RES_MTT_BUSY"; |
| case RES_MTT_ALLOCATED: return "RES_MTT_ALLOCATED"; |
| default: return "Unknown"; |
| } |
| } |
| |
| struct res_mtt { |
| struct res_common com; |
| int order; |
| atomic_t ref_count; |
| }; |
| |
| enum res_mpt_states { |
| RES_MPT_BUSY = RES_ANY_BUSY, |
| RES_MPT_RESERVED, |
| RES_MPT_MAPPED, |
| RES_MPT_HW, |
| }; |
| |
| struct res_mpt { |
| struct res_common com; |
| struct res_mtt *mtt; |
| int key; |
| }; |
| |
| enum res_eq_states { |
| RES_EQ_BUSY = RES_ANY_BUSY, |
| RES_EQ_RESERVED, |
| RES_EQ_HW, |
| }; |
| |
| struct res_eq { |
| struct res_common com; |
| struct res_mtt *mtt; |
| }; |
| |
| enum res_cq_states { |
| RES_CQ_BUSY = RES_ANY_BUSY, |
| RES_CQ_ALLOCATED, |
| RES_CQ_HW, |
| }; |
| |
| struct res_cq { |
| struct res_common com; |
| struct res_mtt *mtt; |
| atomic_t ref_count; |
| }; |
| |
| enum res_srq_states { |
| RES_SRQ_BUSY = RES_ANY_BUSY, |
| RES_SRQ_ALLOCATED, |
| RES_SRQ_HW, |
| }; |
| |
| static inline const char *srq_states_str(enum res_srq_states state) |
| { |
| switch (state) { |
| case RES_SRQ_BUSY: return "RES_SRQ_BUSY"; |
| case RES_SRQ_ALLOCATED: return "RES_SRQ_ALLOCATED"; |
| case RES_SRQ_HW: return "RES_SRQ_HW"; |
| default: return "Unknown"; |
| } |
| } |
| |
| struct res_srq { |
| struct res_common com; |
| struct res_mtt *mtt; |
| struct res_cq *cq; |
| atomic_t ref_count; |
| }; |
| |
| enum res_counter_states { |
| RES_COUNTER_BUSY = RES_ANY_BUSY, |
| RES_COUNTER_ALLOCATED, |
| }; |
| |
| static inline const char *counter_states_str(enum res_counter_states state) |
| { |
| switch (state) { |
| case RES_COUNTER_BUSY: return "RES_COUNTER_BUSY"; |
| case RES_COUNTER_ALLOCATED: return "RES_COUNTER_ALLOCATED"; |
| default: return "Unknown"; |
| } |
| } |
| |
| struct res_counter { |
| struct res_common com; |
| int port; |
| }; |
| |
| /* For Debug uses */ |
| static const char *ResourceType(enum mlx4_resource rt) |
| { |
| switch (rt) { |
| case RES_QP: return "RES_QP"; |
| case RES_CQ: return "RES_CQ"; |
| case RES_SRQ: return "RES_SRQ"; |
| case RES_MPT: return "RES_MPT"; |
| case RES_MTT: return "RES_MTT"; |
| case RES_MAC: return "RES_MAC"; |
| case RES_EQ: return "RES_EQ"; |
| case RES_COUNTER: return "RES_COUNTER"; |
| default: return "Unknown resource type !!!"; |
| }; |
| } |
| |
| /* dummy procedures */ |
| int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) |
| { |
| return 0; |
| } |
| |
| void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac) |
| { |
| } |
| /* end dummies */ |
| |
| int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int i; |
| int t; |
| |
| priv->mfunc.master.res_tracker.slave_list = |
| kzalloc(dev->num_slaves * sizeof(struct slave_list), |
| GFP_KERNEL); |
| if (!priv->mfunc.master.res_tracker.slave_list) |
| return -ENOMEM; |
| |
| for (i = 0 ; i < dev->num_slaves; i++) { |
| for (t = 0; t < MLX4_NUM_OF_RESOURCE_TYPE; ++t) |
| INIT_LIST_HEAD(&priv->mfunc.master.res_tracker. |
| slave_list[i].res_list[t]); |
| mutex_init(&priv->mfunc.master.res_tracker.slave_list[i].mutex); |
| } |
| |
| mlx4_dbg(dev, "Started init_resource_tracker: %ld slaves\n", |
| dev->num_slaves); |
| for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) |
| INIT_RADIX_TREE(&priv->mfunc.master.res_tracker.res_tree[i], |
| GFP_ATOMIC|__GFP_NOWARN); |
| |
| spin_lock_init(&priv->mfunc.master.res_tracker.lock); |
| return 0 ; |
| } |
| |
| void mlx4_free_resource_tracker(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int i; |
| |
| if (priv->mfunc.master.res_tracker.slave_list) { |
| for (i = 0 ; i < dev->num_slaves; i++) |
| mlx4_delete_all_resources_for_slave(dev, i); |
| |
| kfree(priv->mfunc.master.res_tracker.slave_list); |
| } |
| } |
| |
| static void update_ud_gid(struct mlx4_dev *dev, |
| struct mlx4_qp_context *qp_ctx, u8 slave) |
| { |
| u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; |
| |
| if (MLX4_QP_ST_UD == ts) |
| qp_ctx->pri_path.mgid_index = 0x80 | slave; |
| |
| mlx4_dbg(dev, "slave %d, new gid index: 0x%x ", |
| slave, qp_ctx->pri_path.mgid_index); |
| } |
| |
| static int mpt_mask(struct mlx4_dev *dev) |
| { |
| return dev->caps.num_mpts - 1; |
| } |
| |
| static void *find_res(struct mlx4_dev *dev, int res_id, |
| enum mlx4_resource type) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| return radix_tree_lookup(&priv->mfunc.master.res_tracker.res_tree[type], |
| res_id); |
| } |
| |
| static int get_res(struct mlx4_dev *dev, int slave, int res_id, |
| enum mlx4_resource type, |
| void *res) |
| { |
| struct res_common *r; |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = find_res(dev, res_id, type); |
| if (!r) { |
| err = -ENONET; |
| goto exit; |
| } |
| |
| if (r->state == RES_ANY_BUSY) { |
| err = -EBUSY; |
| goto exit; |
| } |
| |
| if (r->owner != slave) { |
| err = -EPERM; |
| goto exit; |
| } |
| |
| r->from_state = r->state; |
| r->state = RES_ANY_BUSY; |
| mlx4_dbg(dev, "res %s id 0x%x to busy\n", |
| ResourceType(type), r->res_id); |
| |
| if (res) |
| *((struct res_common **)res) = r; |
| |
| exit: |
| spin_unlock_irq(mlx4_tlock(dev)); |
| return err; |
| } |
| |
| int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, |
| enum mlx4_resource type, |
| int res_id, int *slave) |
| { |
| |
| struct res_common *r; |
| int err = -ENOENT; |
| int id = res_id; |
| |
| if (type == RES_QP) |
| id &= 0x7fffff; |
| spin_lock_irq(mlx4_tlock(dev)); |
| |
| r = find_res(dev, id, type); |
| if (r) { |
| *slave = r->owner; |
| err = 0; |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static void put_res(struct mlx4_dev *dev, int slave, int res_id, |
| enum mlx4_resource type) |
| { |
| struct res_common *r; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = find_res(dev, res_id, type); |
| if (r) |
| r->state = r->from_state; |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static struct res_common *alloc_qp_tr(int id) |
| { |
| struct res_qp *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_QP_RESERVED; |
| INIT_LIST_HEAD(&ret->mcg_list); |
| spin_lock_init(&ret->mcg_spl); |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_mtt_tr(int id, int order) |
| { |
| struct res_mtt *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->order = order; |
| ret->com.state = RES_MTT_ALLOCATED; |
| atomic_set(&ret->ref_count, 0); |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_mpt_tr(int id, int key) |
| { |
| struct res_mpt *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_MPT_RESERVED; |
| ret->key = key; |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_eq_tr(int id) |
| { |
| struct res_eq *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_EQ_RESERVED; |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_cq_tr(int id) |
| { |
| struct res_cq *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_CQ_ALLOCATED; |
| atomic_set(&ret->ref_count, 0); |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_srq_tr(int id) |
| { |
| struct res_srq *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_SRQ_ALLOCATED; |
| atomic_set(&ret->ref_count, 0); |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_counter_tr(int id) |
| { |
| struct res_counter *ret; |
| |
| ret = kzalloc(sizeof *ret, GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_COUNTER_ALLOCATED; |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave, |
| int extra) |
| { |
| struct res_common *ret; |
| |
| switch (type) { |
| case RES_QP: |
| ret = alloc_qp_tr(id); |
| break; |
| case RES_MPT: |
| ret = alloc_mpt_tr(id, extra); |
| break; |
| case RES_MTT: |
| ret = alloc_mtt_tr(id, extra); |
| break; |
| case RES_EQ: |
| ret = alloc_eq_tr(id); |
| break; |
| case RES_CQ: |
| ret = alloc_cq_tr(id); |
| break; |
| case RES_SRQ: |
| ret = alloc_srq_tr(id); |
| break; |
| case RES_MAC: |
| printk(KERN_ERR "implementation missing\n"); |
| return NULL; |
| case RES_COUNTER: |
| ret = alloc_counter_tr(id); |
| break; |
| |
| default: |
| return NULL; |
| } |
| if (ret) |
| ret->owner = slave; |
| |
| return ret; |
| } |
| |
| static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count, |
| enum mlx4_resource type, int extra) |
| { |
| int i; |
| int err; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct res_common **res_arr; |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct radix_tree_root *root = &tracker->res_tree[type]; |
| |
| res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL); |
| if (!res_arr) |
| return -ENOMEM; |
| |
| for (i = 0; i < count; ++i) { |
| res_arr[i] = alloc_tr(base + i, type, slave, extra); |
| if (!res_arr[i]) { |
| for (--i; i >= 0; --i) |
| kfree(res_arr[i]); |
| |
| kfree(res_arr); |
| return -ENOMEM; |
| } |
| } |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| for (i = 0; i < count; ++i) { |
| if (find_res(dev, base + i, type)) { |
| err = -EEXIST; |
| goto undo; |
| } |
| err = radix_tree_insert(root, base + i, res_arr[i]); |
| if (err) |
| goto undo; |
| list_add_tail(&res_arr[i]->list, |
| &tracker->slave_list[slave].res_list[type]); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(res_arr); |
| |
| return 0; |
| |
| undo: |
| for (--i; i >= base; --i) |
| radix_tree_delete(&tracker->res_tree[type], i); |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| for (i = 0; i < count; ++i) |
| kfree(res_arr[i]); |
| |
| kfree(res_arr); |
| |
| return err; |
| } |
| |
| static int remove_qp_ok(struct res_qp *res) |
| { |
| if (res->com.state == RES_QP_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_QP_RESERVED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_mtt_ok(struct res_mtt *res, int order) |
| { |
| if (res->com.state == RES_MTT_BUSY || |
| atomic_read(&res->ref_count)) { |
| printk(KERN_DEBUG "%s-%d: state %s, ref_count %d\n", |
| __func__, __LINE__, |
| mtt_states_str(res->com.state), |
| atomic_read(&res->ref_count)); |
| return -EBUSY; |
| } else if (res->com.state != RES_MTT_ALLOCATED) |
| return -EPERM; |
| else if (res->order != order) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static int remove_mpt_ok(struct res_mpt *res) |
| { |
| if (res->com.state == RES_MPT_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_MPT_RESERVED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_eq_ok(struct res_eq *res) |
| { |
| if (res->com.state == RES_MPT_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_MPT_RESERVED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_counter_ok(struct res_counter *res) |
| { |
| if (res->com.state == RES_COUNTER_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_COUNTER_ALLOCATED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_cq_ok(struct res_cq *res) |
| { |
| if (res->com.state == RES_CQ_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_CQ_ALLOCATED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_srq_ok(struct res_srq *res) |
| { |
| if (res->com.state == RES_SRQ_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_SRQ_ALLOCATED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra) |
| { |
| switch (type) { |
| case RES_QP: |
| return remove_qp_ok((struct res_qp *)res); |
| case RES_CQ: |
| return remove_cq_ok((struct res_cq *)res); |
| case RES_SRQ: |
| return remove_srq_ok((struct res_srq *)res); |
| case RES_MPT: |
| return remove_mpt_ok((struct res_mpt *)res); |
| case RES_MTT: |
| return remove_mtt_ok((struct res_mtt *)res, extra); |
| case RES_MAC: |
| return -ENOSYS; |
| case RES_EQ: |
| return remove_eq_ok((struct res_eq *)res); |
| case RES_COUNTER: |
| return remove_counter_ok((struct res_counter *)res); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count, |
| enum mlx4_resource type, int extra) |
| { |
| int i; |
| int err; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_common *r; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| for (i = base; i < base + count; ++i) { |
| r = radix_tree_lookup(&tracker->res_tree[type], i); |
| if (!r) { |
| err = -ENOENT; |
| goto out; |
| } |
| if (r->owner != slave) { |
| err = -EPERM; |
| goto out; |
| } |
| err = remove_ok(r, type, extra); |
| if (err) |
| goto out; |
| } |
| |
| for (i = base; i < base + count; ++i) { |
| r = radix_tree_lookup(&tracker->res_tree[type], i); |
| radix_tree_delete(&tracker->res_tree[type], i); |
| list_del(&r->list); |
| kfree(r); |
| } |
| err = 0; |
| |
| out: |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn, |
| enum res_qp_states state, struct res_qp **qp, |
| int alloc) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_qp *r; |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[RES_QP], qpn); |
| if (!r) |
| err = -ENOENT; |
| else if (r->com.owner != slave) |
| err = -EPERM; |
| else { |
| switch (state) { |
| case RES_QP_BUSY: |
| mlx4_dbg(dev, "%s: failed RES_QP, 0x%x\n", |
| __func__, r->com.res_id); |
| err = -EBUSY; |
| break; |
| |
| case RES_QP_RESERVED: |
| if (r->com.state == RES_QP_MAPPED && !alloc) |
| break; |
| |
| mlx4_dbg(dev, "failed RES_QP, 0x%x\n", r->com.res_id); |
| err = -EINVAL; |
| break; |
| |
| case RES_QP_MAPPED: |
| if ((r->com.state == RES_QP_RESERVED && alloc) || |
| r->com.state == RES_QP_HW) |
| break; |
| else { |
| mlx4_dbg(dev, "failed RES_QP, 0x%x\n", |
| r->com.res_id); |
| err = -EINVAL; |
| } |
| |
| break; |
| |
| case RES_QP_HW: |
| if (r->com.state != RES_QP_MAPPED) |
| err = -EINVAL; |
| break; |
| default: |
| err = -EINVAL; |
| } |
| |
| if (!err) { |
| r->com.from_state = r->com.state; |
| r->com.to_state = state; |
| r->com.state = RES_QP_BUSY; |
| if (qp) |
| *qp = (struct res_qp *)r; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| enum res_mpt_states state, struct res_mpt **mpt) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_mpt *r; |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[RES_MPT], index); |
| if (!r) |
| err = -ENOENT; |
| else if (r->com.owner != slave) |
| err = -EPERM; |
| else { |
| switch (state) { |
| case RES_MPT_BUSY: |
| err = -EINVAL; |
| break; |
| |
| case RES_MPT_RESERVED: |
| if (r->com.state != RES_MPT_MAPPED) |
| err = -EINVAL; |
| break; |
| |
| case RES_MPT_MAPPED: |
| if (r->com.state != RES_MPT_RESERVED && |
| r->com.state != RES_MPT_HW) |
| err = -EINVAL; |
| break; |
| |
| case RES_MPT_HW: |
| if (r->com.state != RES_MPT_MAPPED) |
| err = -EINVAL; |
| break; |
| default: |
| err = -EINVAL; |
| } |
| |
| if (!err) { |
| r->com.from_state = r->com.state; |
| r->com.to_state = state; |
| r->com.state = RES_MPT_BUSY; |
| if (mpt) |
| *mpt = (struct res_mpt *)r; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| enum res_eq_states state, struct res_eq **eq) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_eq *r; |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[RES_EQ], index); |
| if (!r) |
| err = -ENOENT; |
| else if (r->com.owner != slave) |
| err = -EPERM; |
| else { |
| switch (state) { |
| case RES_EQ_BUSY: |
| err = -EINVAL; |
| break; |
| |
| case RES_EQ_RESERVED: |
| if (r->com.state != RES_EQ_HW) |
| err = -EINVAL; |
| break; |
| |
| case RES_EQ_HW: |
| if (r->com.state != RES_EQ_RESERVED) |
| err = -EINVAL; |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| if (!err) { |
| r->com.from_state = r->com.state; |
| r->com.to_state = state; |
| r->com.state = RES_EQ_BUSY; |
| if (eq) |
| *eq = r; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn, |
| enum res_cq_states state, struct res_cq **cq) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_cq *r; |
| int err; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[RES_CQ], cqn); |
| if (!r) |
| err = -ENOENT; |
| else if (r->com.owner != slave) |
| err = -EPERM; |
| else { |
| switch (state) { |
| case RES_CQ_BUSY: |
| err = -EBUSY; |
| break; |
| |
| case RES_CQ_ALLOCATED: |
| if (r->com.state != RES_CQ_HW) |
| err = -EINVAL; |
| else if (atomic_read(&r->ref_count)) |
| err = -EBUSY; |
| else |
| err = 0; |
| break; |
| |
| case RES_CQ_HW: |
| if (r->com.state != RES_CQ_ALLOCATED) |
| err = -EINVAL; |
| else |
| err = 0; |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| if (!err) { |
| r->com.from_state = r->com.state; |
| r->com.to_state = state; |
| r->com.state = RES_CQ_BUSY; |
| if (cq) |
| *cq = r; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index, |
| enum res_cq_states state, struct res_srq **srq) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_srq *r; |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[RES_SRQ], index); |
| if (!r) |
| err = -ENOENT; |
| else if (r->com.owner != slave) |
| err = -EPERM; |
| else { |
| switch (state) { |
| case RES_SRQ_BUSY: |
| err = -EINVAL; |
| break; |
| |
| case RES_SRQ_ALLOCATED: |
| if (r->com.state != RES_SRQ_HW) |
| err = -EINVAL; |
| else if (atomic_read(&r->ref_count)) |
| err = -EBUSY; |
| break; |
| |
| case RES_SRQ_HW: |
| if (r->com.state != RES_SRQ_ALLOCATED) |
| err = -EINVAL; |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| if (!err) { |
| r->com.from_state = r->com.state; |
| r->com.to_state = state; |
| r->com.state = RES_SRQ_BUSY; |
| if (srq) |
| *srq = r; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static void res_abort_move(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource type, int id) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_common *r; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[type], id); |
| if (r && (r->owner == slave)) |
| r->state = r->from_state; |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void res_end_move(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource type, int id) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_common *r; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = radix_tree_lookup(&tracker->res_tree[type], id); |
| if (r && (r->owner == slave)) |
| r->state = r->to_state; |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static int valid_reserved(struct mlx4_dev *dev, int slave, int qpn) |
| { |
| return mlx4_is_qp_reserved(dev, qpn); |
| } |
| |
| static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int err; |
| int count; |
| int align; |
| int base; |
| int qpn; |
| |
| switch (op) { |
| case RES_OP_RESERVE: |
| count = get_param_l(&in_param); |
| align = get_param_h(&in_param); |
| err = __mlx4_qp_reserve_range(dev, count, align, &base); |
| if (err) |
| return err; |
| |
| err = add_res_range(dev, slave, base, count, RES_QP, 0); |
| if (err) { |
| __mlx4_qp_release_range(dev, base, count); |
| return err; |
| } |
| set_param_l(out_param, base); |
| break; |
| case RES_OP_MAP_ICM: |
| qpn = get_param_l(&in_param) & 0x7fffff; |
| if (valid_reserved(dev, slave, qpn)) { |
| err = add_res_range(dev, slave, qpn, 1, RES_QP, 0); |
| if (err) |
| return err; |
| } |
| |
| err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, |
| NULL, 1); |
| if (err) |
| return err; |
| |
| if (!valid_reserved(dev, slave, qpn)) { |
| err = __mlx4_qp_alloc_icm(dev, qpn); |
| if (err) { |
| res_abort_move(dev, slave, RES_QP, qpn); |
| return err; |
| } |
| } |
| |
| res_end_move(dev, slave, RES_QP, qpn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| break; |
| } |
| return err; |
| } |
| |
| static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int err = -EINVAL; |
| int base; |
| int order; |
| |
| if (op != RES_OP_RESERVE_AND_MAP) |
| return err; |
| |
| order = get_param_l(&in_param); |
| base = __mlx4_alloc_mtt_range(dev, order); |
| if (base == -1) |
| return -ENOMEM; |
| |
| err = add_res_range(dev, slave, base, 1, RES_MTT, order); |
| if (err) |
| __mlx4_free_mtt_range(dev, base, order); |
| else |
| set_param_l(out_param, base); |
| |
| return err; |
| } |
| |
| static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int err = -EINVAL; |
| int index; |
| int id; |
| struct res_mpt *mpt; |
| |
| switch (op) { |
| case RES_OP_RESERVE: |
| index = __mlx4_mr_reserve(dev); |
| if (index == -1) |
| break; |
| id = index & mpt_mask(dev); |
| |
| err = add_res_range(dev, slave, id, 1, RES_MPT, index); |
| if (err) { |
| __mlx4_mr_release(dev, index); |
| break; |
| } |
| set_param_l(out_param, index); |
| break; |
| case RES_OP_MAP_ICM: |
| index = get_param_l(&in_param); |
| id = index & mpt_mask(dev); |
| err = mr_res_start_move_to(dev, slave, id, |
| RES_MPT_MAPPED, &mpt); |
| if (err) |
| return err; |
| |
| err = __mlx4_mr_alloc_icm(dev, mpt->key); |
| if (err) { |
| res_abort_move(dev, slave, RES_MPT, id); |
| return err; |
| } |
| |
| res_end_move(dev, slave, RES_MPT, id); |
| break; |
| } |
| return err; |
| } |
| |
| static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int cqn; |
| int err; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| err = __mlx4_cq_alloc_icm(dev, &cqn); |
| if (err) |
| break; |
| |
| err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); |
| if (err) { |
| __mlx4_cq_free_icm(dev, cqn); |
| break; |
| } |
| |
| set_param_l(out_param, cqn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| return err; |
| } |
| |
| static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int srqn; |
| int err; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| err = __mlx4_srq_alloc_icm(dev, &srqn); |
| if (err) |
| break; |
| |
| err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); |
| if (err) { |
| __mlx4_srq_free_icm(dev, srqn); |
| break; |
| } |
| |
| set_param_l(out_param, srqn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| return err; |
| } |
| |
| static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct mac_res *res; |
| |
| res = kzalloc(sizeof *res, GFP_KERNEL); |
| if (!res) |
| return -ENOMEM; |
| res->mac = mac; |
| res->port = (u8) port; |
| list_add_tail(&res->list, |
| &tracker->slave_list[slave].res_list[RES_MAC]); |
| return 0; |
| } |
| |
| static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac, |
| int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *mac_list = |
| &tracker->slave_list[slave].res_list[RES_MAC]; |
| struct mac_res *res, *tmp; |
| |
| list_for_each_entry_safe(res, tmp, mac_list, list) { |
| if (res->mac == mac && res->port == (u8) port) { |
| list_del(&res->list); |
| kfree(res); |
| break; |
| } |
| } |
| } |
| |
| static void rem_slave_macs(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *mac_list = |
| &tracker->slave_list[slave].res_list[RES_MAC]; |
| struct mac_res *res, *tmp; |
| |
| list_for_each_entry_safe(res, tmp, mac_list, list) { |
| list_del(&res->list); |
| __mlx4_unregister_mac(dev, res->port, res->mac); |
| kfree(res); |
| } |
| } |
| |
| static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int err = -EINVAL; |
| int port; |
| u64 mac; |
| |
| if (op != RES_OP_RESERVE_AND_MAP) |
| return err; |
| |
| port = get_param_l(out_param); |
| mac = in_param; |
| |
| err = __mlx4_register_mac(dev, port, mac); |
| if (err >= 0) { |
| set_param_l(out_param, err); |
| err = 0; |
| } |
| |
| if (!err) { |
| err = mac_add_to_slave(dev, slave, mac, port); |
| if (err) |
| __mlx4_unregister_mac(dev, port, mac); |
| } |
| return err; |
| } |
| |
| int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int alop = vhcr->op_modifier; |
| |
| switch (vhcr->in_modifier) { |
| case RES_QP: |
| err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_MTT: |
| err = mtt_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_MPT: |
| err = mpt_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_CQ: |
| err = cq_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_SRQ: |
| err = srq_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_MAC: |
| err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param) |
| { |
| int err; |
| int count; |
| int base; |
| int qpn; |
| |
| switch (op) { |
| case RES_OP_RESERVE: |
| base = get_param_l(&in_param) & 0x7fffff; |
| count = get_param_h(&in_param); |
| err = rem_res_range(dev, slave, base, count, RES_QP, 0); |
| if (err) |
| break; |
| __mlx4_qp_release_range(dev, base, count); |
| break; |
| case RES_OP_MAP_ICM: |
| qpn = get_param_l(&in_param) & 0x7fffff; |
| err = qp_res_start_move_to(dev, slave, qpn, RES_QP_RESERVED, |
| NULL, 0); |
| if (err) |
| return err; |
| |
| if (!valid_reserved(dev, slave, qpn)) |
| __mlx4_qp_free_icm(dev, qpn); |
| |
| res_end_move(dev, slave, RES_QP, qpn); |
| |
| if (valid_reserved(dev, slave, qpn)) |
| err = rem_res_range(dev, slave, qpn, 1, RES_QP, 0); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| return err; |
| } |
| |
| static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int err = -EINVAL; |
| int base; |
| int order; |
| |
| if (op != RES_OP_RESERVE_AND_MAP) |
| return err; |
| |
| base = get_param_l(&in_param); |
| order = get_param_h(&in_param); |
| err = rem_res_range(dev, slave, base, 1, RES_MTT, order); |
| if (!err) |
| __mlx4_free_mtt_range(dev, base, order); |
| return err; |
| } |
| |
| static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param) |
| { |
| int err = -EINVAL; |
| int index; |
| int id; |
| struct res_mpt *mpt; |
| |
| switch (op) { |
| case RES_OP_RESERVE: |
| index = get_param_l(&in_param); |
| id = index & mpt_mask(dev); |
| err = get_res(dev, slave, id, RES_MPT, &mpt); |
| if (err) |
| break; |
| index = mpt->key; |
| put_res(dev, slave, id, RES_MPT); |
| |
| err = rem_res_range(dev, slave, id, 1, RES_MPT, 0); |
| if (err) |
| break; |
| __mlx4_mr_release(dev, index); |
| break; |
| case RES_OP_MAP_ICM: |
| index = get_param_l(&in_param); |
| id = index & mpt_mask(dev); |
| err = mr_res_start_move_to(dev, slave, id, |
| RES_MPT_RESERVED, &mpt); |
| if (err) |
| return err; |
| |
| __mlx4_mr_free_icm(dev, mpt->key); |
| res_end_move(dev, slave, RES_MPT, id); |
| return err; |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| return err; |
| } |
| |
| static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int cqn; |
| int err; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| cqn = get_param_l(&in_param); |
| err = rem_res_range(dev, slave, cqn, 1, RES_CQ, 0); |
| if (err) |
| break; |
| |
| __mlx4_cq_free_icm(dev, cqn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int srqn; |
| int err; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| srqn = get_param_l(&in_param); |
| err = rem_res_range(dev, slave, srqn, 1, RES_SRQ, 0); |
| if (err) |
| break; |
| |
| __mlx4_srq_free_icm(dev, srqn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int port; |
| int err = 0; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| port = get_param_l(out_param); |
| mac_del_from_slave(dev, slave, in_param, port); |
| __mlx4_unregister_mac(dev, port, in_param); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| |
| } |
| |
| int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err = -EINVAL; |
| int alop = vhcr->op_modifier; |
| |
| switch (vhcr->in_modifier) { |
| case RES_QP: |
| err = qp_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param); |
| break; |
| |
| case RES_MTT: |
| err = mtt_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_MPT: |
| err = mpt_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param); |
| break; |
| |
| case RES_CQ: |
| err = cq_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_SRQ: |
| err = srq_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_MAC: |
| err = mac_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| default: |
| break; |
| } |
| return err; |
| } |
| |
| /* ugly but other choices are uglier */ |
| static int mr_phys_mpt(struct mlx4_mpt_entry *mpt) |
| { |
| return (be32_to_cpu(mpt->flags) >> 9) & 1; |
| } |
| |
| static int mr_get_mtt_seg(struct mlx4_mpt_entry *mpt) |
| { |
| return (int)be64_to_cpu(mpt->mtt_seg) & 0xfffffff8; |
| } |
| |
| static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->mtt_sz); |
| } |
| |
| static int mr_get_pdn(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->pd_flags) & 0xffffff; |
| } |
| |
| static int qp_get_mtt_seg(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; |
| } |
| |
| static int srq_get_mtt_seg(struct mlx4_srq_context *srqc) |
| { |
| return be32_to_cpu(srqc->mtt_base_addr_l) & 0xfffffff8; |
| } |
| |
| static int qp_get_mtt_size(struct mlx4_qp_context *qpc) |
| { |
| int page_shift = (qpc->log_page_size & 0x3f) + 12; |
| int log_sq_size = (qpc->sq_size_stride >> 3) & 0xf; |
| int log_sq_sride = qpc->sq_size_stride & 7; |
| int log_rq_size = (qpc->rq_size_stride >> 3) & 0xf; |
| int log_rq_stride = qpc->rq_size_stride & 7; |
| int srq = (be32_to_cpu(qpc->srqn) >> 24) & 1; |
| int rss = (be32_to_cpu(qpc->flags) >> 13) & 1; |
| int xrc = (be32_to_cpu(qpc->local_qpn) >> 23) & 1; |
| int sq_size; |
| int rq_size; |
| int total_pages; |
| int total_mem; |
| int page_offset = (be32_to_cpu(qpc->params2) >> 6) & 0x3f; |
| |
| sq_size = 1 << (log_sq_size + log_sq_sride + 4); |
| rq_size = (srq|rss|xrc) ? 0 : (1 << (log_rq_size + log_rq_stride + 4)); |
| total_mem = sq_size + rq_size; |
| total_pages = |
| roundup_pow_of_two((total_mem + (page_offset << 6)) >> |
| page_shift); |
| |
| return total_pages; |
| } |
| |
| static int qp_get_pdn(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->pd) & 0xffffff; |
| } |
| |
| static int pdn2slave(int pdn) |
| { |
| return (pdn >> NOT_MASKED_PD_BITS) - 1; |
| } |
| |
| static int check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
| int size, struct res_mtt *mtt) |
| { |
| int res_start = mtt->com.res_id * dev->caps.mtts_per_seg; |
| int res_size = (1 << mtt->order) * dev->caps.mtts_per_seg; |
| |
| if (start < res_start || start + size > res_start + res_size) |
| return -EPERM; |
| return 0; |
| } |
| |
| int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int index = vhcr->in_modifier; |
| struct res_mtt *mtt; |
| struct res_mpt *mpt; |
| int mtt_base = (mr_get_mtt_seg(inbox->buf) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| int phys; |
| int id; |
| |
| id = index & mpt_mask(dev); |
| err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); |
| if (err) |
| return err; |
| |
| phys = mr_phys_mpt(inbox->buf); |
| if (!phys) { |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, |
| RES_MTT, &mtt); |
| if (err) |
| goto ex_abort; |
| |
| err = check_mtt_range(dev, slave, mtt_base, |
| mr_get_mtt_size(inbox->buf), mtt); |
| if (err) |
| goto ex_put; |
| |
| mpt->mtt = mtt; |
| } |
| |
| if (pdn2slave(mr_get_pdn(inbox->buf)) != slave) { |
| err = -EPERM; |
| goto ex_put; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_put; |
| |
| if (!phys) { |
| atomic_inc(&mtt->ref_count); |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| } |
| |
| res_end_move(dev, slave, RES_MPT, id); |
| return 0; |
| |
| ex_put: |
| if (!phys) |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| ex_abort: |
| res_abort_move(dev, slave, RES_MPT, id); |
| |
| return err; |
| } |
| |
| int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int index = vhcr->in_modifier; |
| struct res_mpt *mpt; |
| int id; |
| |
| id = index & mpt_mask(dev); |
| err = mr_res_start_move_to(dev, slave, id, RES_MPT_MAPPED, &mpt); |
| if (err) |
| return err; |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_abort; |
| |
| if (mpt->mtt) |
| atomic_dec(&mpt->mtt->ref_count); |
| |
| res_end_move(dev, slave, RES_MPT, id); |
| return 0; |
| |
| ex_abort: |
| res_abort_move(dev, slave, RES_MPT, id); |
| |
| return err; |
| } |
| |
| int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int index = vhcr->in_modifier; |
| struct res_mpt *mpt; |
| int id; |
| |
| id = index & mpt_mask(dev); |
| err = get_res(dev, slave, id, RES_MPT, &mpt); |
| if (err) |
| return err; |
| |
| if (mpt->com.from_state != RES_MPT_HW) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| |
| out: |
| put_res(dev, slave, id, RES_MPT); |
| return err; |
| } |
| |
| static int qp_get_rcqn(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->cqn_recv) & 0xffffff; |
| } |
| |
| static int qp_get_scqn(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->cqn_send) & 0xffffff; |
| } |
| |
| static u32 qp_get_srqn(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->srqn) & 0x1ffffff; |
| } |
| |
| int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int qpn = vhcr->in_modifier & 0x7fffff; |
| struct res_mtt *mtt; |
| struct res_qp *qp; |
| struct mlx4_qp_context *qpc = inbox->buf + 8; |
| int mtt_base = (qp_get_mtt_seg(qpc) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| int mtt_size = qp_get_mtt_size(qpc); |
| struct res_cq *rcq; |
| struct res_cq *scq; |
| int rcqn = qp_get_rcqn(qpc); |
| int scqn = qp_get_scqn(qpc); |
| u32 srqn = qp_get_srqn(qpc) & 0xffffff; |
| int use_srq = (qp_get_srqn(qpc) >> 24) & 1; |
| struct res_srq *srq; |
| int local_qpn = be32_to_cpu(qpc->local_qpn) & 0xffffff; |
| |
| err = qp_res_start_move_to(dev, slave, qpn, RES_QP_HW, &qp, 0); |
| if (err) |
| return err; |
| qp->local_qpn = local_qpn; |
| |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT, |
| &mtt); |
| if (err) |
| goto ex_abort; |
| |
| err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); |
| if (err) |
| goto ex_put_mtt; |
| |
| if (pdn2slave(qp_get_pdn(qpc)) != slave) { |
| err = -EPERM; |
| goto ex_put_mtt; |
| } |
| |
| err = get_res(dev, slave, rcqn, RES_CQ, &rcq); |
| if (err) |
| goto ex_put_mtt; |
| |
| if (scqn != rcqn) { |
| err = get_res(dev, slave, scqn, RES_CQ, &scq); |
| if (err) |
| goto ex_put_rcq; |
| } else |
| scq = rcq; |
| |
| if (use_srq) { |
| err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| if (err) |
| goto ex_put_scq; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_put_srq; |
| atomic_inc(&mtt->ref_count); |
| qp->mtt = mtt; |
| atomic_inc(&rcq->ref_count); |
| qp->rcq = rcq; |
| atomic_inc(&scq->ref_count); |
| qp->scq = scq; |
| |
| if (scqn != rcqn) |
| put_res(dev, slave, scqn, RES_CQ); |
| |
| if (use_srq) { |
| atomic_inc(&srq->ref_count); |
| put_res(dev, slave, srqn, RES_SRQ); |
| qp->srq = srq; |
| } |
| put_res(dev, slave, rcqn, RES_CQ); |
| put_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT); |
| res_end_move(dev, slave, RES_QP, qpn); |
| |
| return 0; |
| |
| ex_put_srq: |
| if (use_srq) |
| put_res(dev, slave, srqn, RES_SRQ); |
| ex_put_scq: |
| if (scqn != rcqn) |
| put_res(dev, slave, scqn, RES_CQ); |
| ex_put_rcq: |
| put_res(dev, slave, rcqn, RES_CQ); |
| ex_put_mtt: |
| put_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT); |
| ex_abort: |
| res_abort_move(dev, slave, RES_QP, qpn); |
| |
| return err; |
| } |
| |
| static int eq_get_mtt_seg(struct mlx4_eq_context *eqc) |
| { |
| return be32_to_cpu(eqc->mtt_base_addr_l) & 0xfffffff8; |
| } |
| |
| static int eq_get_mtt_size(struct mlx4_eq_context *eqc) |
| { |
| int log_eq_size = eqc->log_eq_size & 0x1f; |
| int page_shift = (eqc->log_page_size & 0x3f) + 12; |
| |
| if (log_eq_size + 5 < page_shift) |
| return 1; |
| |
| return 1 << (log_eq_size + 5 - page_shift); |
| } |
| |
| static int cq_get_mtt_seg(struct mlx4_cq_context *cqc) |
| { |
| return be32_to_cpu(cqc->mtt_base_addr_l) & 0xfffffff8; |
| } |
| |
| static int cq_get_mtt_size(struct mlx4_cq_context *cqc) |
| { |
| int log_cq_size = (be32_to_cpu(cqc->logsize_usrpage) >> 24) & 0x1f; |
| int page_shift = (cqc->log_page_size & 0x3f) + 12; |
| |
| if (log_cq_size + 5 < page_shift) |
| return 1; |
| |
| return 1 << (log_cq_size + 5 - page_shift); |
| } |
| |
| int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int eqn = vhcr->in_modifier; |
| int res_id = (slave << 8) | eqn; |
| struct mlx4_eq_context *eqc = inbox->buf; |
| int mtt_base = (eq_get_mtt_seg(eqc) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| int mtt_size = eq_get_mtt_size(eqc); |
| struct res_eq *eq; |
| struct res_mtt *mtt; |
| |
| err = add_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| if (err) |
| return err; |
| err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_HW, &eq); |
| if (err) |
| goto out_add; |
| |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT, |
| &mtt); |
| if (err) |
| goto out_move; |
| |
| err = check_mtt_range(dev, slave, mtt_base, mtt_size, mtt); |
| if (err) |
| goto out_put; |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto out_put; |
| |
| atomic_inc(&mtt->ref_count); |
| eq->mtt = mtt; |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| res_end_move(dev, slave, RES_EQ, res_id); |
| return 0; |
| |
| out_put: |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| out_move: |
| res_abort_move(dev, slave, RES_EQ, res_id); |
| out_add: |
| rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| return err; |
| } |
| |
| static int get_containing_mtt(struct mlx4_dev *dev, int slave, int start, |
| int len, struct res_mtt **res) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_mtt *mtt; |
| int err = -EINVAL; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry(mtt, &tracker->slave_list[slave].res_list[RES_MTT], |
| com.list) { |
| if (!check_mtt_range(dev, slave, start, len, mtt)) { |
| *res = mtt; |
| mtt->com.from_state = mtt->com.state; |
| mtt->com.state = RES_MTT_BUSY; |
| err = 0; |
| break; |
| } |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| struct mlx4_mtt mtt; |
| __be64 *page_list = inbox->buf; |
| u64 *pg_list = (u64 *)page_list; |
| int i; |
| struct res_mtt *rmtt = NULL; |
| int start = be64_to_cpu(page_list[0]); |
| int npages = vhcr->in_modifier; |
| int err; |
| |
| err = get_containing_mtt(dev, slave, start, npages, &rmtt); |
| if (err) |
| return err; |
| |
| /* Call the SW implementation of write_mtt: |
| * - Prepare a dummy mtt struct |
| * - Translate inbox contents to simple addresses in host endianess */ |
| mtt.first_seg = 0; |
| mtt.order = 0; |
| mtt.page_shift = 0; |
| for (i = 0; i < npages; ++i) |
| pg_list[i + 2] = (be64_to_cpu(page_list[i + 2]) & ~1ULL); |
| |
| err = __mlx4_write_mtt(dev, &mtt, be64_to_cpu(page_list[0]), npages, |
| ((u64 *)page_list + 2)); |
| |
| if (rmtt) |
| put_res(dev, slave, rmtt->com.res_id, RES_MTT); |
| |
| return err; |
| } |
| |
| int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int eqn = vhcr->in_modifier; |
| int res_id = eqn | (slave << 8); |
| struct res_eq *eq; |
| int err; |
| |
| err = eq_res_start_move_to(dev, slave, res_id, RES_EQ_RESERVED, &eq); |
| if (err) |
| return err; |
| |
| err = get_res(dev, slave, eq->mtt->com.res_id, RES_MTT, NULL); |
| if (err) |
| goto ex_abort; |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_put; |
| |
| atomic_dec(&eq->mtt->ref_count); |
| put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); |
| res_end_move(dev, slave, RES_EQ, res_id); |
| rem_res_range(dev, slave, res_id, 1, RES_EQ, 0); |
| |
| return 0; |
| |
| ex_put: |
| put_res(dev, slave, eq->mtt->com.res_id, RES_MTT); |
| ex_abort: |
| res_abort_move(dev, slave, RES_EQ, res_id); |
| |
| return err; |
| } |
| |
| int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_slave_event_eq_info *event_eq; |
| struct mlx4_cmd_mailbox *mailbox; |
| u32 in_modifier = 0; |
| int err; |
| int res_id; |
| struct res_eq *req; |
| |
| if (!priv->mfunc.master.slave_state) |
| return -EINVAL; |
| |
| event_eq = &priv->mfunc.master.slave_state[slave].event_eq; |
| |
| /* Create the event only if the slave is registered */ |
| if ((event_eq->event_type & (1 << eqe->type)) == 0) |
| return 0; |
| |
| mutex_lock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| res_id = (slave << 8) | event_eq->eqn; |
| err = get_res(dev, slave, res_id, RES_EQ, &req); |
| if (err) |
| goto unlock; |
| |
| if (req->com.from_state != RES_EQ_HW) { |
| err = -EINVAL; |
| goto put; |
| } |
| |
| mailbox = mlx4_alloc_cmd_mailbox(dev); |
| if (IS_ERR(mailbox)) { |
| err = PTR_ERR(mailbox); |
| goto put; |
| } |
| |
| if (eqe->type == MLX4_EVENT_TYPE_CMD) { |
| ++event_eq->token; |
| eqe->event.cmd.token = cpu_to_be16(event_eq->token); |
| } |
| |
| memcpy(mailbox->buf, (u8 *) eqe, 28); |
| |
| in_modifier = (slave & 0xff) | ((event_eq->eqn & 0xff) << 16); |
| |
| err = mlx4_cmd(dev, mailbox->dma, in_modifier, 0, |
| MLX4_CMD_GEN_EQE, MLX4_CMD_TIME_CLASS_B, |
| MLX4_CMD_NATIVE); |
| |
| put_res(dev, slave, res_id, RES_EQ); |
| mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| mlx4_free_cmd_mailbox(dev, mailbox); |
| return err; |
| |
| put: |
| put_res(dev, slave, res_id, RES_EQ); |
| |
| unlock: |
| mutex_unlock(&priv->mfunc.master.gen_eqe_mutex[slave]); |
| return err; |
| } |
| |
| int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int eqn = vhcr->in_modifier; |
| int res_id = eqn | (slave << 8); |
| struct res_eq *eq; |
| int err; |
| |
| err = get_res(dev, slave, res_id, RES_EQ, &eq); |
| if (err) |
| return err; |
| |
| if (eq->com.from_state != RES_EQ_HW) { |
| err = -EINVAL; |
| goto ex_put; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| |
| ex_put: |
| put_res(dev, slave, res_id, RES_EQ); |
| return err; |
| } |
| |
| int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int cqn = vhcr->in_modifier; |
| struct mlx4_cq_context *cqc = inbox->buf; |
| int mtt_base = (cq_get_mtt_seg(cqc) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| struct res_cq *cq; |
| struct res_mtt *mtt; |
| |
| err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_HW, &cq); |
| if (err) |
| return err; |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT, |
| &mtt); |
| if (err) |
| goto out_move; |
| err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); |
| if (err) |
| goto out_put; |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto out_put; |
| atomic_inc(&mtt->ref_count); |
| cq->mtt = mtt; |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| res_end_move(dev, slave, RES_CQ, cqn); |
| return 0; |
| |
| out_put: |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| out_move: |
| res_abort_move(dev, slave, RES_CQ, cqn); |
| return err; |
| } |
| |
| int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int cqn = vhcr->in_modifier; |
| struct res_cq *cq; |
| |
| err = cq_res_start_move_to(dev, slave, cqn, RES_CQ_ALLOCATED, &cq); |
| if (err) |
| return err; |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto out_move; |
| atomic_dec(&cq->mtt->ref_count); |
| res_end_move(dev, slave, RES_CQ, cqn); |
| return 0; |
| |
| out_move: |
| res_abort_move(dev, slave, RES_CQ, cqn); |
| return err; |
| } |
| |
| int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int cqn = vhcr->in_modifier; |
| struct res_cq *cq; |
| int err; |
| |
| err = get_res(dev, slave, cqn, RES_CQ, &cq); |
| if (err) |
| return err; |
| |
| if (cq->com.from_state != RES_CQ_HW) |
| goto ex_put; |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| ex_put: |
| put_res(dev, slave, cqn, RES_CQ); |
| |
| return err; |
| } |
| |
| static int handle_resize(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd, |
| struct res_cq *cq) |
| { |
| int err; |
| struct res_mtt *orig_mtt; |
| struct res_mtt *mtt; |
| struct mlx4_cq_context *cqc = inbox->buf; |
| int mtt_base = (cq_get_mtt_seg(cqc) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| |
| err = get_res(dev, slave, cq->mtt->com.res_id, RES_MTT, &orig_mtt); |
| if (err) |
| return err; |
| |
| if (orig_mtt != cq->mtt) { |
| err = -EINVAL; |
| goto ex_put; |
| } |
| |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, RES_MTT, |
| &mtt); |
| if (err) |
| goto ex_put; |
| |
| err = check_mtt_range(dev, slave, mtt_base, cq_get_mtt_size(cqc), mtt); |
| if (err) |
| goto ex_put1; |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_put1; |
| atomic_dec(&orig_mtt->ref_count); |
| put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); |
| atomic_inc(&mtt->ref_count); |
| cq->mtt = mtt; |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| return 0; |
| |
| ex_put1: |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| ex_put: |
| put_res(dev, slave, orig_mtt->com.res_id, RES_MTT); |
| |
| return err; |
| |
| } |
| |
| int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int cqn = vhcr->in_modifier; |
| struct res_cq *cq; |
| int err; |
| |
| err = get_res(dev, slave, cqn, RES_CQ, &cq); |
| if (err) |
| return err; |
| |
| if (cq->com.from_state != RES_CQ_HW) |
| goto ex_put; |
| |
| if (vhcr->op_modifier == 0) { |
| err = handle_resize(dev, slave, vhcr, inbox, outbox, cmd, cq); |
| if (err) |
| goto ex_put; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| ex_put: |
| put_res(dev, slave, cqn, RES_CQ); |
| |
| return err; |
| } |
| |
| static int srq_get_pdn(struct mlx4_srq_context *srqc) |
| { |
| return be32_to_cpu(srqc->pd) & 0xffffff; |
| } |
| |
| static int srq_get_mtt_size(struct mlx4_srq_context *srqc) |
| { |
| int log_srq_size = (be32_to_cpu(srqc->state_logsize_srqn) >> 24) & 0xf; |
| int log_rq_stride = srqc->logstride & 7; |
| int page_shift = (srqc->log_page_size & 0x3f) + 12; |
| |
| if (log_srq_size + log_rq_stride + 4 < page_shift) |
| return 1; |
| |
| return 1 << (log_srq_size + log_rq_stride + 4 - page_shift); |
| } |
| |
| int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int srqn = vhcr->in_modifier; |
| struct res_mtt *mtt; |
| struct res_srq *srq; |
| struct mlx4_srq_context *srqc = inbox->buf; |
| int mtt_base = (srq_get_mtt_seg(srqc) / dev->caps.mtt_entry_sz) * |
| dev->caps.mtts_per_seg; |
| |
| if (srqn != (be32_to_cpu(srqc->state_logsize_srqn) & 0xffffff)) |
| return -EINVAL; |
| |
| err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_HW, &srq); |
| if (err) |
| return err; |
| err = get_res(dev, slave, mtt_base / dev->caps.mtts_per_seg, |
| RES_MTT, &mtt); |
| if (err) |
| goto ex_abort; |
| err = check_mtt_range(dev, slave, mtt_base, srq_get_mtt_size(srqc), |
| mtt); |
| if (err) |
| goto ex_put_mtt; |
| |
| if (pdn2slave(srq_get_pdn(srqc)) != slave) { |
| err = -EPERM; |
| goto ex_put_mtt; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_put_mtt; |
| |
| atomic_inc(&mtt->ref_count); |
| srq->mtt = mtt; |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| res_end_move(dev, slave, RES_SRQ, srqn); |
| return 0; |
| |
| ex_put_mtt: |
| put_res(dev, slave, mtt->com.res_id, RES_MTT); |
| ex_abort: |
| res_abort_move(dev, slave, RES_SRQ, srqn); |
| |
| return err; |
| } |
| |
| int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int srqn = vhcr->in_modifier; |
| struct res_srq *srq; |
| |
| err = srq_res_start_move_to(dev, slave, srqn, RES_SRQ_ALLOCATED, &srq); |
| if (err) |
| return err; |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_abort; |
| atomic_dec(&srq->mtt->ref_count); |
| if (srq->cq) |
| atomic_dec(&srq->cq->ref_count); |
| res_end_move(dev, slave, RES_SRQ, srqn); |
| |
| return 0; |
| |
| ex_abort: |
| res_abort_move(dev, slave, RES_SRQ, srqn); |
| |
| return err; |
| } |
| |
| int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int srqn = vhcr->in_modifier; |
| struct res_srq *srq; |
| |
| err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| if (err) |
| return err; |
| if (srq->com.from_state != RES_SRQ_HW) { |
| err = -EBUSY; |
| goto out; |
| } |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| out: |
| put_res(dev, slave, srqn, RES_SRQ); |
| return err; |
| } |
| |
| int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int srqn = vhcr->in_modifier; |
| struct res_srq *srq; |
| |
| err = get_res(dev, slave, srqn, RES_SRQ, &srq); |
| if (err) |
| return err; |
| |
| if (srq->com.from_state != RES_SRQ_HW) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| out: |
| put_res(dev, slave, srqn, RES_SRQ); |
| return err; |
| } |
| |
| int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int qpn = vhcr->in_modifier & 0x7fffff; |
| struct res_qp *qp; |
| |
| err = get_res(dev, slave, qpn, RES_QP, &qp); |
| if (err) |
| return err; |
| if (qp->com.from_state != RES_QP_HW) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| out: |
| put_res(dev, slave, qpn, RES_QP); |
| return err; |
| } |
| |
| int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| struct mlx4_qp_context *qpc = inbox->buf + 8; |
| |
| update_ud_gid(dev, qpc, (u8)slave); |
| |
| return mlx4_GEN_QP_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| } |
| |
| int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int qpn = vhcr->in_modifier & 0x7fffff; |
| struct res_qp *qp; |
| |
| err = qp_res_start_move_to(dev, slave, qpn, RES_QP_MAPPED, &qp, 0); |
| if (err) |
| return err; |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| if (err) |
| goto ex_abort; |
| |
| atomic_dec(&qp->mtt->ref_count); |
| atomic_dec(&qp->rcq->ref_count); |
| atomic_dec(&qp->scq->ref_count); |
| if (qp->srq) |
| atomic_dec(&qp->srq->ref_count); |
| res_end_move(dev, slave, RES_QP, qpn); |
| return 0; |
| |
| ex_abort: |
| res_abort_move(dev, slave, RES_QP, qpn); |
| |
| return err; |
| } |
| |
| static struct res_gid *find_gid(struct mlx4_dev *dev, int slave, |
| struct res_qp *rqp, u8 *gid) |
| { |
| struct res_gid *res; |
| |
| list_for_each_entry(res, &rqp->mcg_list, list) { |
| if (!memcmp(res->gid, gid, 16)) |
| return res; |
| } |
| return NULL; |
| } |
| |
| static int add_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, |
| u8 *gid, enum mlx4_protocol prot) |
| { |
| struct res_gid *res; |
| int err; |
| |
| res = kzalloc(sizeof *res, GFP_KERNEL); |
| if (!res) |
| return -ENOMEM; |
| |
| spin_lock_irq(&rqp->mcg_spl); |
| if (find_gid(dev, slave, rqp, gid)) { |
| kfree(res); |
| err = -EEXIST; |
| } else { |
| memcpy(res->gid, gid, 16); |
| res->prot = prot; |
| list_add_tail(&res->list, &rqp->mcg_list); |
| err = 0; |
| } |
| spin_unlock_irq(&rqp->mcg_spl); |
| |
| return err; |
| } |
| |
| static int rem_mcg_res(struct mlx4_dev *dev, int slave, struct res_qp *rqp, |
| u8 *gid, enum mlx4_protocol prot) |
| { |
| struct res_gid *res; |
| int err; |
| |
| spin_lock_irq(&rqp->mcg_spl); |
| res = find_gid(dev, slave, rqp, gid); |
| if (!res || res->prot != prot) |
| err = -EINVAL; |
| else { |
| list_del(&res->list); |
| kfree(res); |
| err = 0; |
| } |
| spin_unlock_irq(&rqp->mcg_spl); |
| |
| return err; |
| } |
| |
| int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| struct mlx4_qp qp; /* dummy for calling attach/detach */ |
| u8 *gid = inbox->buf; |
| enum mlx4_protocol prot = (vhcr->in_modifier >> 28) & 0x7; |
| int err, err1; |
| int qpn; |
| struct res_qp *rqp; |
| int attach = vhcr->op_modifier; |
| int block_loopback = vhcr->in_modifier >> 31; |
| u8 steer_type_mask = 2; |
| enum mlx4_steer_type type = gid[7] & steer_type_mask; |
| |
| qpn = vhcr->in_modifier & 0xffffff; |
| err = get_res(dev, slave, qpn, RES_QP, &rqp); |
| if (err) |
| return err; |
| |
| qp.qpn = qpn; |
| if (attach) { |
| err = add_mcg_res(dev, slave, rqp, gid, prot); |
| if (err) |
| goto ex_put; |
| |
| err = mlx4_qp_attach_common(dev, &qp, gid, |
| block_loopback, prot, type); |
| if (err) |
| goto ex_rem; |
| } else { |
| err = rem_mcg_res(dev, slave, rqp, gid, prot); |
| if (err) |
| goto ex_put; |
| err = mlx4_qp_detach_common(dev, &qp, gid, prot, type); |
| } |
| |
| put_res(dev, slave, qpn, RES_QP); |
| return 0; |
| |
| ex_rem: |
| /* ignore error return below, already in error */ |
| err1 = rem_mcg_res(dev, slave, rqp, gid, prot); |
| ex_put: |
| put_res(dev, slave, qpn, RES_QP); |
| |
| return err; |
| } |
| |
| enum { |
| BUSY_MAX_RETRIES = 10 |
| }; |
| |
| int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave, |
| struct mlx4_vhcr *vhcr, |
| struct mlx4_cmd_mailbox *inbox, |
| struct mlx4_cmd_mailbox *outbox, |
| struct mlx4_cmd_info *cmd) |
| { |
| int err; |
| int index = vhcr->in_modifier & 0xffff; |
| |
| err = get_res(dev, slave, index, RES_COUNTER, NULL); |
| if (err) |
| return err; |
| |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| put_res(dev, slave, index, RES_COUNTER); |
| return err; |
| } |
| |
| static void detach_qp(struct mlx4_dev *dev, int slave, struct res_qp *rqp) |
| { |
| struct res_gid *rgid; |
| struct res_gid *tmp; |
| int err; |
| struct mlx4_qp qp; /* dummy for calling attach/detach */ |
| |
| list_for_each_entry_safe(rgid, tmp, &rqp->mcg_list, list) { |
| qp.qpn = rqp->local_qpn; |
| err = mlx4_qp_detach_common(dev, &qp, rgid->gid, rgid->prot, |
| MLX4_MC_STEER); |
| list_del(&rgid->list); |
| kfree(rgid); |
| } |
| } |
| |
| static int _move_all_busy(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource type, int print) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = |
| &priv->mfunc.master.res_tracker; |
| struct list_head *rlist = &tracker->slave_list[slave].res_list[type]; |
| struct res_common *r; |
| struct res_common *tmp; |
| int busy; |
| |
| busy = 0; |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(r, tmp, rlist, list) { |
| if (r->owner == slave) { |
| if (!r->removing) { |
| if (r->state == RES_ANY_BUSY) { |
| if (print) |
| mlx4_dbg(dev, |
| "%s id 0x%x is busy\n", |
| ResourceType(type), |
| r->res_id); |
| ++busy; |
| } else { |
| r->from_state = r->state; |
| r->state = RES_ANY_BUSY; |
| r->removing = 1; |
| } |
| } |
| } |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| return busy; |
| } |
| |
| static int move_all_busy(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource type) |
| { |
| unsigned long begin; |
| int busy; |
| |
| begin = jiffies; |
| do { |
| busy = _move_all_busy(dev, slave, type, 0); |
| if (time_after(jiffies, begin + 5 * HZ)) |
| break; |
| if (busy) |
| cond_resched(); |
| } while (busy); |
| |
| if (busy) |
| busy = _move_all_busy(dev, slave, type, 1); |
| |
| return busy; |
| } |
| static void rem_slave_qps(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *qp_list = |
| &tracker->slave_list[slave].res_list[RES_QP]; |
| struct res_qp *qp; |
| struct res_qp *tmp; |
| int state; |
| u64 in_param; |
| int qpn; |
| int err; |
| |
| err = move_all_busy(dev, slave, RES_QP); |
| if (err) |
| mlx4_warn(dev, "rem_slave_qps: Could not move all qps to busy" |
| "for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(qp, tmp, qp_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (qp->com.owner == slave) { |
| qpn = qp->com.res_id; |
| detach_qp(dev, slave, qp); |
| state = qp->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_QP_RESERVED: |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_QP], |
| qp->com.res_id); |
| list_del(&qp->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(qp); |
| state = 0; |
| break; |
| case RES_QP_MAPPED: |
| if (!valid_reserved(dev, slave, qpn)) |
| __mlx4_qp_free_icm(dev, qpn); |
| state = RES_QP_RESERVED; |
| break; |
| case RES_QP_HW: |
| in_param = slave; |
| err = mlx4_cmd(dev, in_param, |
| qp->local_qpn, 2, |
| MLX4_CMD_2RST_QP, |
| MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_NATIVE); |
| if (err) |
| mlx4_dbg(dev, "rem_slave_qps: failed" |
| " to move slave %d qpn %d to" |
| " reset\n", slave, |
| qp->local_qpn); |
| atomic_dec(&qp->rcq->ref_count); |
| atomic_dec(&qp->scq->ref_count); |
| atomic_dec(&qp->mtt->ref_count); |
| if (qp->srq) |
| atomic_dec(&qp->srq->ref_count); |
| state = RES_QP_MAPPED; |
| break; |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void rem_slave_srqs(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *srq_list = |
| &tracker->slave_list[slave].res_list[RES_SRQ]; |
| struct res_srq *srq; |
| struct res_srq *tmp; |
| int state; |
| u64 in_param; |
| LIST_HEAD(tlist); |
| int srqn; |
| int err; |
| |
| err = move_all_busy(dev, slave, RES_SRQ); |
| if (err) |
| mlx4_warn(dev, "rem_slave_srqs: Could not move all srqs to " |
| "busy for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(srq, tmp, srq_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (srq->com.owner == slave) { |
| srqn = srq->com.res_id; |
| state = srq->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_SRQ_ALLOCATED: |
| __mlx4_srq_free_icm(dev, srqn); |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_SRQ], |
| srqn); |
| list_del(&srq->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(srq); |
| state = 0; |
| break; |
| |
| case RES_SRQ_HW: |
| in_param = slave; |
| err = mlx4_cmd(dev, in_param, srqn, 1, |
| MLX4_CMD_HW2SW_SRQ, |
| MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_NATIVE); |
| if (err) |
| mlx4_dbg(dev, "rem_slave_srqs: failed" |
| " to move slave %d srq %d to" |
| " SW ownership\n", |
| slave, srqn); |
| |
| atomic_dec(&srq->mtt->ref_count); |
| if (srq->cq) |
| atomic_dec(&srq->cq->ref_count); |
| state = RES_SRQ_ALLOCATED; |
| break; |
| |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void rem_slave_cqs(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *cq_list = |
| &tracker->slave_list[slave].res_list[RES_CQ]; |
| struct res_cq *cq; |
| struct res_cq *tmp; |
| int state; |
| u64 in_param; |
| LIST_HEAD(tlist); |
| int cqn; |
| int err; |
| |
| err = move_all_busy(dev, slave, RES_CQ); |
| if (err) |
| mlx4_warn(dev, "rem_slave_cqs: Could not move all cqs to " |
| "busy for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(cq, tmp, cq_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (cq->com.owner == slave && !atomic_read(&cq->ref_count)) { |
| cqn = cq->com.res_id; |
| state = cq->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_CQ_ALLOCATED: |
| __mlx4_cq_free_icm(dev, cqn); |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_CQ], |
| cqn); |
| list_del(&cq->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(cq); |
| state = 0; |
| break; |
| |
| case RES_CQ_HW: |
| in_param = slave; |
| err = mlx4_cmd(dev, in_param, cqn, 1, |
| MLX4_CMD_HW2SW_CQ, |
| MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_NATIVE); |
| if (err) |
| mlx4_dbg(dev, "rem_slave_cqs: failed" |
| " to move slave %d cq %d to" |
| " SW ownership\n", |
| slave, cqn); |
| atomic_dec(&cq->mtt->ref_count); |
| state = RES_CQ_ALLOCATED; |
| break; |
| |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void rem_slave_mrs(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *mpt_list = |
| &tracker->slave_list[slave].res_list[RES_MPT]; |
| struct res_mpt *mpt; |
| struct res_mpt *tmp; |
| int state; |
| u64 in_param; |
| LIST_HEAD(tlist); |
| int mptn; |
| int err; |
| |
| err = move_all_busy(dev, slave, RES_MPT); |
| if (err) |
| mlx4_warn(dev, "rem_slave_mrs: Could not move all mpts to " |
| "busy for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(mpt, tmp, mpt_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (mpt->com.owner == slave) { |
| mptn = mpt->com.res_id; |
| state = mpt->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_MPT_RESERVED: |
| __mlx4_mr_release(dev, mpt->key); |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_MPT], |
| mptn); |
| list_del(&mpt->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(mpt); |
| state = 0; |
| break; |
| |
| case RES_MPT_MAPPED: |
| __mlx4_mr_free_icm(dev, mpt->key); |
| state = RES_MPT_RESERVED; |
| break; |
| |
| case RES_MPT_HW: |
| in_param = slave; |
| err = mlx4_cmd(dev, in_param, mptn, 0, |
| MLX4_CMD_HW2SW_MPT, |
| MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_NATIVE); |
| if (err) |
| mlx4_dbg(dev, "rem_slave_mrs: failed" |
| " to move slave %d mpt %d to" |
| " SW ownership\n", |
| slave, mptn); |
| if (mpt->mtt) |
| atomic_dec(&mpt->mtt->ref_count); |
| state = RES_MPT_MAPPED; |
| break; |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void rem_slave_mtts(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = |
| &priv->mfunc.master.res_tracker; |
| struct list_head *mtt_list = |
| &tracker->slave_list[slave].res_list[RES_MTT]; |
| struct res_mtt *mtt; |
| struct res_mtt *tmp; |
| int state; |
| LIST_HEAD(tlist); |
| int base; |
| int err; |
| |
| err = move_all_busy(dev, slave, RES_MTT); |
| if (err) |
| mlx4_warn(dev, "rem_slave_mtts: Could not move all mtts to " |
| "busy for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(mtt, tmp, mtt_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (mtt->com.owner == slave) { |
| base = mtt->com.res_id; |
| state = mtt->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_MTT_ALLOCATED: |
| __mlx4_free_mtt_range(dev, base, |
| mtt->order); |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_MTT], |
| base); |
| list_del(&mtt->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(mtt); |
| state = 0; |
| break; |
| |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static void rem_slave_eqs(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *eq_list = |
| &tracker->slave_list[slave].res_list[RES_EQ]; |
| struct res_eq *eq; |
| struct res_eq *tmp; |
| int err; |
| int state; |
| LIST_HEAD(tlist); |
| int eqn; |
| struct mlx4_cmd_mailbox *mailbox; |
| |
| err = move_all_busy(dev, slave, RES_EQ); |
| if (err) |
| mlx4_warn(dev, "rem_slave_eqs: Could not move all eqs to " |
| "busy for slave %d\n", slave); |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry_safe(eq, tmp, eq_list, com.list) { |
| spin_unlock_irq(mlx4_tlock(dev)); |
| if (eq->com.owner == slave) { |
| eqn = eq->com.res_id; |
| state = eq->com.from_state; |
| while (state != 0) { |
| switch (state) { |
| case RES_EQ_RESERVED: |
| spin_lock_irq(mlx4_tlock(dev)); |
| radix_tree_delete(&tracker->res_tree[RES_EQ], |
| eqn); |
| list_del(&eq->com.list); |
| spin_unlock_irq(mlx4_tlock(dev)); |
| kfree(eq); |
| state = 0; |
| break; |
| |
| case RES_EQ_HW: |
| mailbox = mlx4_alloc_cmd_mailbox(dev); |
| if (IS_ERR(mailbox)) { |
| cond_resched(); |
| continue; |
| } |
| err = mlx4_cmd_box(dev, slave, 0, |
| eqn & 0xff, 0, |
| MLX4_CMD_HW2SW_EQ, |
| MLX4_CMD_TIME_CLASS_A, |
| MLX4_CMD_NATIVE); |
| mlx4_dbg(dev, "rem_slave_eqs: failed" |
| " to move slave %d eqs %d to" |
| " SW ownership\n", slave, eqn); |
| mlx4_free_cmd_mailbox(dev, mailbox); |
| if (!err) { |
| atomic_dec(&eq->mtt->ref_count); |
| state = RES_EQ_RESERVED; |
| } |
| break; |
| |
| default: |
| state = 0; |
| } |
| } |
| } |
| spin_lock_irq(mlx4_tlock(dev)); |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); |
| /*VLAN*/ |
| rem_slave_macs(dev, slave); |
| rem_slave_qps(dev, slave); |
| rem_slave_srqs(dev, slave); |
| rem_slave_cqs(dev, slave); |
| rem_slave_mrs(dev, slave); |
| rem_slave_eqs(dev, slave); |
| rem_slave_mtts(dev, slave); |
| mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex); |
| } |