| /* |
| * 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/slab.h> |
| #include <linux/mlx4/cmd.h> |
| #include <linux/mlx4/qp.h> |
| #include <linux/if_ether.h> |
| #include <linux/etherdevice.h> |
| |
| #include "mlx4.h" |
| #include "fw.h" |
| #include "mlx4_stats.h" |
| |
| #define MLX4_MAC_VALID (1ull << 63) |
| #define MLX4_PF_COUNTERS_PER_PORT 2 |
| #define MLX4_VF_COUNTERS_PER_PORT 1 |
| |
| struct mac_res { |
| struct list_head list; |
| u64 mac; |
| int ref_count; |
| u8 smac_index; |
| u8 port; |
| }; |
| |
| struct vlan_res { |
| struct list_head list; |
| u16 vlan; |
| int ref_count; |
| int vlan_index; |
| u8 port; |
| }; |
| |
| struct res_common { |
| struct list_head list; |
| struct rb_node node; |
| u64 res_id; |
| int owner; |
| int state; |
| int from_state; |
| int to_state; |
| int removing; |
| const char *func_name; |
| }; |
| |
| enum { |
| RES_ANY_BUSY = 1 |
| }; |
| |
| struct res_gid { |
| struct list_head list; |
| u8 gid[16]; |
| enum mlx4_protocol prot; |
| enum mlx4_steer_type steer; |
| u64 reg_id; |
| }; |
| |
| 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 |
| }; |
| |
| 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; |
| atomic_t ref_count; |
| u32 qpc_flags; |
| /* saved qp params before VST enforcement in order to restore on VGT */ |
| u8 sched_queue; |
| __be32 param3; |
| u8 vlan_control; |
| u8 fvl_rx; |
| u8 pri_path_fl; |
| u8 vlan_index; |
| u8 feup; |
| }; |
| |
| 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, |
| }; |
| |
| 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, |
| }; |
| |
| struct res_counter { |
| struct res_common com; |
| int port; |
| }; |
| |
| enum res_xrcdn_states { |
| RES_XRCD_BUSY = RES_ANY_BUSY, |
| RES_XRCD_ALLOCATED, |
| }; |
| |
| struct res_xrcdn { |
| struct res_common com; |
| int port; |
| }; |
| |
| enum res_fs_rule_states { |
| RES_FS_RULE_BUSY = RES_ANY_BUSY, |
| RES_FS_RULE_ALLOCATED, |
| }; |
| |
| struct res_fs_rule { |
| struct res_common com; |
| int qpn; |
| /* VF DMFS mbox with port flipped */ |
| void *mirr_mbox; |
| /* > 0 --> apply mirror when getting into HA mode */ |
| /* = 0 --> un-apply mirror when getting out of HA mode */ |
| u32 mirr_mbox_size; |
| struct list_head mirr_list; |
| u64 mirr_rule_id; |
| }; |
| |
| static void *res_tracker_lookup(struct rb_root *root, u64 res_id) |
| { |
| struct rb_node *node = root->rb_node; |
| |
| while (node) { |
| struct res_common *res = rb_entry(node, struct res_common, |
| node); |
| |
| if (res_id < res->res_id) |
| node = node->rb_left; |
| else if (res_id > res->res_id) |
| node = node->rb_right; |
| else |
| return res; |
| } |
| return NULL; |
| } |
| |
| static int res_tracker_insert(struct rb_root *root, struct res_common *res) |
| { |
| struct rb_node **new = &(root->rb_node), *parent = NULL; |
| |
| /* Figure out where to put new node */ |
| while (*new) { |
| struct res_common *this = rb_entry(*new, struct res_common, |
| node); |
| |
| parent = *new; |
| if (res->res_id < this->res_id) |
| new = &((*new)->rb_left); |
| else if (res->res_id > this->res_id) |
| new = &((*new)->rb_right); |
| else |
| return -EEXIST; |
| } |
| |
| /* Add new node and rebalance tree. */ |
| rb_link_node(&res->node, parent, new); |
| rb_insert_color(&res->node, root); |
| |
| return 0; |
| } |
| |
| enum qp_transition { |
| QP_TRANS_INIT2RTR, |
| QP_TRANS_RTR2RTS, |
| QP_TRANS_RTS2RTS, |
| QP_TRANS_SQERR2RTS, |
| QP_TRANS_SQD2SQD, |
| QP_TRANS_SQD2RTS |
| }; |
| |
| /* For Debug uses */ |
| static const char *resource_str(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_VLAN: return "RES_VLAN"; |
| case RES_EQ: return "RES_EQ"; |
| case RES_COUNTER: return "RES_COUNTER"; |
| case RES_FS_RULE: return "RES_FS_RULE"; |
| case RES_XRCD: return "RES_XRCD"; |
| default: return "Unknown resource type !!!"; |
| }; |
| } |
| |
| static void rem_slave_vlans(struct mlx4_dev *dev, int slave); |
| static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource res_type, int count, |
| int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct resource_allocator *res_alloc = |
| &priv->mfunc.master.res_tracker.res_alloc[res_type]; |
| int err = -EDQUOT; |
| int allocated, free, reserved, guaranteed, from_free; |
| int from_rsvd; |
| |
| if (slave > dev->persist->num_vfs) |
| return -EINVAL; |
| |
| spin_lock(&res_alloc->alloc_lock); |
| allocated = (port > 0) ? |
| res_alloc->allocated[(port - 1) * |
| (dev->persist->num_vfs + 1) + slave] : |
| res_alloc->allocated[slave]; |
| free = (port > 0) ? res_alloc->res_port_free[port - 1] : |
| res_alloc->res_free; |
| reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] : |
| res_alloc->res_reserved; |
| guaranteed = res_alloc->guaranteed[slave]; |
| |
| if (allocated + count > res_alloc->quota[slave]) { |
| mlx4_warn(dev, "VF %d port %d res %s: quota exceeded, count %d alloc %d quota %d\n", |
| slave, port, resource_str(res_type), count, |
| allocated, res_alloc->quota[slave]); |
| goto out; |
| } |
| |
| if (allocated + count <= guaranteed) { |
| err = 0; |
| from_rsvd = count; |
| } else { |
| /* portion may need to be obtained from free area */ |
| if (guaranteed - allocated > 0) |
| from_free = count - (guaranteed - allocated); |
| else |
| from_free = count; |
| |
| from_rsvd = count - from_free; |
| |
| if (free - from_free >= reserved) |
| err = 0; |
| else |
| mlx4_warn(dev, "VF %d port %d res %s: free pool empty, free %d from_free %d rsvd %d\n", |
| slave, port, resource_str(res_type), free, |
| from_free, reserved); |
| } |
| |
| if (!err) { |
| /* grant the request */ |
| if (port > 0) { |
| res_alloc->allocated[(port - 1) * |
| (dev->persist->num_vfs + 1) + slave] += count; |
| res_alloc->res_port_free[port - 1] -= count; |
| res_alloc->res_port_rsvd[port - 1] -= from_rsvd; |
| } else { |
| res_alloc->allocated[slave] += count; |
| res_alloc->res_free -= count; |
| res_alloc->res_reserved -= from_rsvd; |
| } |
| } |
| |
| out: |
| spin_unlock(&res_alloc->alloc_lock); |
| return err; |
| } |
| |
| static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave, |
| enum mlx4_resource res_type, int count, |
| int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct resource_allocator *res_alloc = |
| &priv->mfunc.master.res_tracker.res_alloc[res_type]; |
| int allocated, guaranteed, from_rsvd; |
| |
| if (slave > dev->persist->num_vfs) |
| return; |
| |
| spin_lock(&res_alloc->alloc_lock); |
| |
| allocated = (port > 0) ? |
| res_alloc->allocated[(port - 1) * |
| (dev->persist->num_vfs + 1) + slave] : |
| res_alloc->allocated[slave]; |
| guaranteed = res_alloc->guaranteed[slave]; |
| |
| if (allocated - count >= guaranteed) { |
| from_rsvd = 0; |
| } else { |
| /* portion may need to be returned to reserved area */ |
| if (allocated - guaranteed > 0) |
| from_rsvd = count - (allocated - guaranteed); |
| else |
| from_rsvd = count; |
| } |
| |
| if (port > 0) { |
| res_alloc->allocated[(port - 1) * |
| (dev->persist->num_vfs + 1) + slave] -= count; |
| res_alloc->res_port_free[port - 1] += count; |
| res_alloc->res_port_rsvd[port - 1] += from_rsvd; |
| } else { |
| res_alloc->allocated[slave] -= count; |
| res_alloc->res_free += count; |
| res_alloc->res_reserved += from_rsvd; |
| } |
| |
| spin_unlock(&res_alloc->alloc_lock); |
| return; |
| } |
| |
| static inline void initialize_res_quotas(struct mlx4_dev *dev, |
| struct resource_allocator *res_alloc, |
| enum mlx4_resource res_type, |
| int vf, int num_instances) |
| { |
| res_alloc->guaranteed[vf] = num_instances / |
| (2 * (dev->persist->num_vfs + 1)); |
| res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf]; |
| if (vf == mlx4_master_func_num(dev)) { |
| res_alloc->res_free = num_instances; |
| if (res_type == RES_MTT) { |
| /* reserved mtts will be taken out of the PF allocation */ |
| res_alloc->res_free += dev->caps.reserved_mtts; |
| res_alloc->guaranteed[vf] += dev->caps.reserved_mtts; |
| res_alloc->quota[vf] += dev->caps.reserved_mtts; |
| } |
| } |
| } |
| |
| void mlx4_init_quotas(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int pf; |
| |
| /* quotas for VFs are initialized in mlx4_slave_cap */ |
| if (mlx4_is_slave(dev)) |
| return; |
| |
| if (!mlx4_is_mfunc(dev)) { |
| dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps - |
| mlx4_num_reserved_sqps(dev); |
| dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs; |
| dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs; |
| dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts; |
| dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws; |
| return; |
| } |
| |
| pf = mlx4_master_func_num(dev); |
| dev->quotas.qp = |
| priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf]; |
| dev->quotas.cq = |
| priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf]; |
| dev->quotas.srq = |
| priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf]; |
| dev->quotas.mtt = |
| priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf]; |
| dev->quotas.mpt = |
| priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf]; |
| } |
| |
| static int get_max_gauranteed_vfs_counter(struct mlx4_dev *dev) |
| { |
| /* reduce the sink counter */ |
| return (dev->caps.max_counters - 1 - |
| (MLX4_PF_COUNTERS_PER_PORT * MLX4_MAX_PORTS)) |
| / MLX4_MAX_PORTS; |
| } |
| |
| int mlx4_init_resource_tracker(struct mlx4_dev *dev) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int i, j; |
| int t; |
| int max_vfs_guarantee_counter = get_max_gauranteed_vfs_counter(dev); |
| |
| 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++) |
| priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT; |
| |
| for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { |
| struct resource_allocator *res_alloc = |
| &priv->mfunc.master.res_tracker.res_alloc[i]; |
| res_alloc->quota = kmalloc((dev->persist->num_vfs + 1) * |
| sizeof(int), GFP_KERNEL); |
| res_alloc->guaranteed = kmalloc((dev->persist->num_vfs + 1) * |
| sizeof(int), GFP_KERNEL); |
| if (i == RES_MAC || i == RES_VLAN) |
| res_alloc->allocated = kzalloc(MLX4_MAX_PORTS * |
| (dev->persist->num_vfs |
| + 1) * |
| sizeof(int), GFP_KERNEL); |
| else |
| res_alloc->allocated = kzalloc((dev->persist-> |
| num_vfs + 1) * |
| sizeof(int), GFP_KERNEL); |
| /* Reduce the sink counter */ |
| if (i == RES_COUNTER) |
| res_alloc->res_free = dev->caps.max_counters - 1; |
| |
| if (!res_alloc->quota || !res_alloc->guaranteed || |
| !res_alloc->allocated) |
| goto no_mem_err; |
| |
| spin_lock_init(&res_alloc->alloc_lock); |
| for (t = 0; t < dev->persist->num_vfs + 1; t++) { |
| struct mlx4_active_ports actv_ports = |
| mlx4_get_active_ports(dev, t); |
| switch (i) { |
| case RES_QP: |
| initialize_res_quotas(dev, res_alloc, RES_QP, |
| t, dev->caps.num_qps - |
| dev->caps.reserved_qps - |
| mlx4_num_reserved_sqps(dev)); |
| break; |
| case RES_CQ: |
| initialize_res_quotas(dev, res_alloc, RES_CQ, |
| t, dev->caps.num_cqs - |
| dev->caps.reserved_cqs); |
| break; |
| case RES_SRQ: |
| initialize_res_quotas(dev, res_alloc, RES_SRQ, |
| t, dev->caps.num_srqs - |
| dev->caps.reserved_srqs); |
| break; |
| case RES_MPT: |
| initialize_res_quotas(dev, res_alloc, RES_MPT, |
| t, dev->caps.num_mpts - |
| dev->caps.reserved_mrws); |
| break; |
| case RES_MTT: |
| initialize_res_quotas(dev, res_alloc, RES_MTT, |
| t, dev->caps.num_mtts - |
| dev->caps.reserved_mtts); |
| break; |
| case RES_MAC: |
| if (t == mlx4_master_func_num(dev)) { |
| int max_vfs_pport = 0; |
| /* Calculate the max vfs per port for */ |
| /* both ports. */ |
| for (j = 0; j < dev->caps.num_ports; |
| j++) { |
| struct mlx4_slaves_pport slaves_pport = |
| mlx4_phys_to_slaves_pport(dev, j + 1); |
| unsigned current_slaves = |
| bitmap_weight(slaves_pport.slaves, |
| dev->caps.num_ports) - 1; |
| if (max_vfs_pport < current_slaves) |
| max_vfs_pport = |
| current_slaves; |
| } |
| res_alloc->quota[t] = |
| MLX4_MAX_MAC_NUM - |
| 2 * max_vfs_pport; |
| res_alloc->guaranteed[t] = 2; |
| for (j = 0; j < MLX4_MAX_PORTS; j++) |
| res_alloc->res_port_free[j] = |
| MLX4_MAX_MAC_NUM; |
| } else { |
| res_alloc->quota[t] = MLX4_MAX_MAC_NUM; |
| res_alloc->guaranteed[t] = 2; |
| } |
| break; |
| case RES_VLAN: |
| if (t == mlx4_master_func_num(dev)) { |
| res_alloc->quota[t] = MLX4_MAX_VLAN_NUM; |
| res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2; |
| for (j = 0; j < MLX4_MAX_PORTS; j++) |
| res_alloc->res_port_free[j] = |
| res_alloc->quota[t]; |
| } else { |
| res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2; |
| res_alloc->guaranteed[t] = 0; |
| } |
| break; |
| case RES_COUNTER: |
| res_alloc->quota[t] = dev->caps.max_counters; |
| if (t == mlx4_master_func_num(dev)) |
| res_alloc->guaranteed[t] = |
| MLX4_PF_COUNTERS_PER_PORT * |
| MLX4_MAX_PORTS; |
| else if (t <= max_vfs_guarantee_counter) |
| res_alloc->guaranteed[t] = |
| MLX4_VF_COUNTERS_PER_PORT * |
| MLX4_MAX_PORTS; |
| else |
| res_alloc->guaranteed[t] = 0; |
| res_alloc->res_free -= res_alloc->guaranteed[t]; |
| break; |
| default: |
| break; |
| } |
| if (i == RES_MAC || i == RES_VLAN) { |
| for (j = 0; j < dev->caps.num_ports; j++) |
| if (test_bit(j, actv_ports.ports)) |
| res_alloc->res_port_rsvd[j] += |
| res_alloc->guaranteed[t]; |
| } else { |
| res_alloc->res_reserved += res_alloc->guaranteed[t]; |
| } |
| } |
| } |
| spin_lock_init(&priv->mfunc.master.res_tracker.lock); |
| return 0; |
| |
| no_mem_err: |
| for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); |
| priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); |
| priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); |
| priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; |
| } |
| return -ENOMEM; |
| } |
| |
| void mlx4_free_resource_tracker(struct mlx4_dev *dev, |
| enum mlx4_res_tracker_free_type type) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int i; |
| |
| if (priv->mfunc.master.res_tracker.slave_list) { |
| if (type != RES_TR_FREE_STRUCTS_ONLY) { |
| for (i = 0; i < dev->num_slaves; i++) { |
| if (type == RES_TR_FREE_ALL || |
| dev->caps.function != i) |
| mlx4_delete_all_resources_for_slave(dev, i); |
| } |
| /* free master's vlans */ |
| i = dev->caps.function; |
| mlx4_reset_roce_gids(dev, i); |
| mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); |
| rem_slave_vlans(dev, i); |
| mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex); |
| } |
| |
| if (type != RES_TR_FREE_SLAVES_ONLY) { |
| for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) { |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated); |
| priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL; |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed); |
| priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL; |
| kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota); |
| priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL; |
| } |
| kfree(priv->mfunc.master.res_tracker.slave_list); |
| priv->mfunc.master.res_tracker.slave_list = NULL; |
| } |
| } |
| } |
| |
| static void update_pkey_index(struct mlx4_dev *dev, int slave, |
| struct mlx4_cmd_mailbox *inbox) |
| { |
| u8 sched = *(u8 *)(inbox->buf + 64); |
| u8 orig_index = *(u8 *)(inbox->buf + 35); |
| u8 new_index; |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| int port; |
| |
| port = (sched >> 6 & 1) + 1; |
| |
| new_index = priv->virt2phys_pkey[slave][port - 1][orig_index]; |
| *(u8 *)(inbox->buf + 35) = new_index; |
| } |
| |
| static void update_gid(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *inbox, |
| u8 slave) |
| { |
| struct mlx4_qp_context *qp_ctx = inbox->buf + 8; |
| enum mlx4_qp_optpar optpar = be32_to_cpu(*(__be32 *) inbox->buf); |
| u32 ts = (be32_to_cpu(qp_ctx->flags) >> 16) & 0xff; |
| int port; |
| |
| if (MLX4_QP_ST_UD == ts) { |
| port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; |
| if (mlx4_is_eth(dev, port)) |
| qp_ctx->pri_path.mgid_index = |
| mlx4_get_base_gid_ix(dev, slave, port) | 0x80; |
| else |
| qp_ctx->pri_path.mgid_index = slave | 0x80; |
| |
| } else if (MLX4_QP_ST_RC == ts || MLX4_QP_ST_XRC == ts || MLX4_QP_ST_UC == ts) { |
| if (optpar & MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH) { |
| port = (qp_ctx->pri_path.sched_queue >> 6 & 1) + 1; |
| if (mlx4_is_eth(dev, port)) { |
| qp_ctx->pri_path.mgid_index += |
| mlx4_get_base_gid_ix(dev, slave, port); |
| qp_ctx->pri_path.mgid_index &= 0x7f; |
| } else { |
| qp_ctx->pri_path.mgid_index = slave & 0x7F; |
| } |
| } |
| if (optpar & MLX4_QP_OPTPAR_ALT_ADDR_PATH) { |
| port = (qp_ctx->alt_path.sched_queue >> 6 & 1) + 1; |
| if (mlx4_is_eth(dev, port)) { |
| qp_ctx->alt_path.mgid_index += |
| mlx4_get_base_gid_ix(dev, slave, port); |
| qp_ctx->alt_path.mgid_index &= 0x7f; |
| } else { |
| qp_ctx->alt_path.mgid_index = slave & 0x7F; |
| } |
| } |
| } |
| } |
| |
| static int handle_counter(struct mlx4_dev *dev, struct mlx4_qp_context *qpc, |
| u8 slave, int port); |
| |
| static int update_vport_qp_param(struct mlx4_dev *dev, |
| struct mlx4_cmd_mailbox *inbox, |
| u8 slave, u32 qpn) |
| { |
| struct mlx4_qp_context *qpc = inbox->buf + 8; |
| struct mlx4_vport_oper_state *vp_oper; |
| struct mlx4_priv *priv; |
| u32 qp_type; |
| int port, err = 0; |
| |
| port = (qpc->pri_path.sched_queue & 0x40) ? 2 : 1; |
| priv = mlx4_priv(dev); |
| vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port]; |
| qp_type = (be32_to_cpu(qpc->flags) >> 16) & 0xff; |
| |
| err = handle_counter(dev, qpc, slave, port); |
| if (err) |
| goto out; |
| |
| if (MLX4_VGT != vp_oper->state.default_vlan) { |
| /* the reserved QPs (special, proxy, tunnel) |
| * do not operate over vlans |
| */ |
| if (mlx4_is_qp_reserved(dev, qpn)) |
| return 0; |
| |
| /* force strip vlan by clear vsd, MLX QP refers to Raw Ethernet */ |
| if (qp_type == MLX4_QP_ST_UD || |
| (qp_type == MLX4_QP_ST_MLX && mlx4_is_eth(dev, port))) { |
| if (dev->caps.bmme_flags & MLX4_BMME_FLAG_VSD_INIT2RTR) { |
| *(__be32 *)inbox->buf = |
| cpu_to_be32(be32_to_cpu(*(__be32 *)inbox->buf) | |
| MLX4_QP_OPTPAR_VLAN_STRIPPING); |
| qpc->param3 &= ~cpu_to_be32(MLX4_STRIP_VLAN); |
| } else { |
| struct mlx4_update_qp_params params = {.flags = 0}; |
| |
| err = mlx4_update_qp(dev, qpn, MLX4_UPDATE_QP_VSD, ¶ms); |
| if (err) |
| goto out; |
| } |
| } |
| |
| /* preserve IF_COUNTER flag */ |
| qpc->pri_path.vlan_control &= |
| MLX4_CTRL_ETH_SRC_CHECK_IF_COUNTER; |
| if (vp_oper->state.link_state == IFLA_VF_LINK_STATE_DISABLE && |
| dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP) { |
| qpc->pri_path.vlan_control |= |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_UNTAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; |
| } else if (0 != vp_oper->state.default_vlan) { |
| if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD)) { |
| /* vst QinQ should block untagged on TX, |
| * but cvlan is in payload and phv is set so |
| * hw see it as untagged. Block tagged instead. |
| */ |
| qpc->pri_path.vlan_control |= |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_PRIO_TAGGED | |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; |
| } else { /* vst 802.1Q */ |
| qpc->pri_path.vlan_control |= |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_PRIO_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED; |
| } |
| } else { /* priority tagged */ |
| qpc->pri_path.vlan_control |= |
| MLX4_VLAN_CTRL_ETH_TX_BLOCK_TAGGED | |
| MLX4_VLAN_CTRL_ETH_RX_BLOCK_TAGGED; |
| } |
| |
| qpc->pri_path.fvl_rx |= MLX4_FVL_RX_FORCE_ETH_VLAN; |
| qpc->pri_path.vlan_index = vp_oper->vlan_idx; |
| qpc->pri_path.fl |= MLX4_FL_ETH_HIDE_CQE_VLAN; |
| if (vp_oper->state.vlan_proto == htons(ETH_P_8021AD)) |
| qpc->pri_path.fl |= MLX4_FL_SV; |
| else |
| qpc->pri_path.fl |= MLX4_FL_CV; |
| qpc->pri_path.feup |= MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN; |
| qpc->pri_path.sched_queue &= 0xC7; |
| qpc->pri_path.sched_queue |= (vp_oper->state.default_qos) << 3; |
| qpc->qos_vport = vp_oper->state.qos_vport; |
| } |
| if (vp_oper->state.spoofchk) { |
| qpc->pri_path.feup |= MLX4_FSM_FORCE_ETH_SRC_MAC; |
| qpc->pri_path.grh_mylmc = (0x80 & qpc->pri_path.grh_mylmc) + vp_oper->mac_idx; |
| } |
| out: |
| return err; |
| } |
| |
| static int mpt_mask(struct mlx4_dev *dev) |
| { |
| return dev->caps.num_mpts - 1; |
| } |
| |
| static const char *mlx4_resource_type_to_str(enum mlx4_resource t) |
| { |
| switch (t) { |
| case RES_QP: |
| return "QP"; |
| case RES_CQ: |
| return "CQ"; |
| case RES_SRQ: |
| return "SRQ"; |
| case RES_XRCD: |
| return "XRCD"; |
| case RES_MPT: |
| return "MPT"; |
| case RES_MTT: |
| return "MTT"; |
| case RES_MAC: |
| return "MAC"; |
| case RES_VLAN: |
| return "VLAN"; |
| case RES_COUNTER: |
| return "COUNTER"; |
| case RES_FS_RULE: |
| return "FS_RULE"; |
| case RES_EQ: |
| return "EQ"; |
| default: |
| return "INVALID RESOURCE"; |
| } |
| } |
| |
| static void *find_res(struct mlx4_dev *dev, u64 res_id, |
| enum mlx4_resource type) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| |
| return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type], |
| res_id); |
| } |
| |
| static int _get_res(struct mlx4_dev *dev, int slave, u64 res_id, |
| enum mlx4_resource type, |
| void *res, const char *func_name) |
| { |
| 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) { |
| mlx4_warn(dev, |
| "%s(%d) trying to get resource %llx of type %s, but it's already taken by %s\n", |
| func_name, slave, res_id, mlx4_resource_type_to_str(type), |
| r->func_name); |
| err = -EBUSY; |
| goto exit; |
| } |
| |
| if (r->owner != slave) { |
| err = -EPERM; |
| goto exit; |
| } |
| |
| r->from_state = r->state; |
| r->state = RES_ANY_BUSY; |
| r->func_name = func_name; |
| |
| if (res) |
| *((struct res_common **)res) = r; |
| |
| exit: |
| spin_unlock_irq(mlx4_tlock(dev)); |
| return err; |
| } |
| |
| #define get_res(dev, slave, res_id, type, res) \ |
| _get_res((dev), (slave), (res_id), (type), (res), __func__) |
| |
| int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev, |
| enum mlx4_resource type, |
| u64 res_id, int *slave) |
| { |
| |
| struct res_common *r; |
| int err = -ENOENT; |
| int id = res_id; |
| |
| if (type == RES_QP) |
| id &= 0x7fffff; |
| spin_lock(mlx4_tlock(dev)); |
| |
| r = find_res(dev, id, type); |
| if (r) { |
| *slave = r->owner; |
| err = 0; |
| } |
| spin_unlock(mlx4_tlock(dev)); |
| |
| return err; |
| } |
| |
| static void put_res(struct mlx4_dev *dev, int slave, u64 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; |
| r->func_name = ""; |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| } |
| |
| static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param, int port); |
| |
| static int handle_existing_counter(struct mlx4_dev *dev, u8 slave, int port, |
| int counter_index) |
| { |
| struct res_common *r; |
| struct res_counter *counter; |
| int ret = 0; |
| |
| if (counter_index == MLX4_SINK_COUNTER_INDEX(dev)) |
| return ret; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| r = find_res(dev, counter_index, RES_COUNTER); |
| if (!r || r->owner != slave) { |
| ret = -EINVAL; |
| } else { |
| counter = container_of(r, struct res_counter, com); |
| if (!counter->port) |
| counter->port = port; |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| return ret; |
| } |
| |
| static int handle_unexisting_counter(struct mlx4_dev *dev, |
| struct mlx4_qp_context *qpc, u8 slave, |
| int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_common *tmp; |
| struct res_counter *counter; |
| u64 counter_idx = MLX4_SINK_COUNTER_INDEX(dev); |
| int err = 0; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry(tmp, |
| &tracker->slave_list[slave].res_list[RES_COUNTER], |
| list) { |
| counter = container_of(tmp, struct res_counter, com); |
| if (port == counter->port) { |
| qpc->pri_path.counter_index = counter->com.res_id; |
| spin_unlock_irq(mlx4_tlock(dev)); |
| return 0; |
| } |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| /* No existing counter, need to allocate a new counter */ |
| err = counter_alloc_res(dev, slave, RES_OP_RESERVE, 0, 0, &counter_idx, |
| port); |
| if (err == -ENOENT) { |
| err = 0; |
| } else if (err && err != -ENOSPC) { |
| mlx4_err(dev, "%s: failed to create new counter for slave %d err %d\n", |
| __func__, slave, err); |
| } else { |
| qpc->pri_path.counter_index = counter_idx; |
| mlx4_dbg(dev, "%s: alloc new counter for slave %d index %d\n", |
| __func__, slave, qpc->pri_path.counter_index); |
| err = 0; |
| } |
| |
| return err; |
| } |
| |
| static int handle_counter(struct mlx4_dev *dev, struct mlx4_qp_context *qpc, |
| u8 slave, int port) |
| { |
| if (qpc->pri_path.counter_index != MLX4_SINK_COUNTER_INDEX(dev)) |
| return handle_existing_counter(dev, slave, port, |
| qpc->pri_path.counter_index); |
| |
| return handle_unexisting_counter(dev, qpc, slave, port); |
| } |
| |
| 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; |
| ret->local_qpn = id; |
| INIT_LIST_HEAD(&ret->mcg_list); |
| spin_lock_init(&ret->mcg_spl); |
| atomic_set(&ret->ref_count, 0); |
| |
| 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, int port) |
| { |
| 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; |
| ret->port = port; |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_xrcdn_tr(int id) |
| { |
| struct res_xrcdn *ret; |
| |
| ret = kzalloc(sizeof(*ret), GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_XRCD_ALLOCATED; |
| |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_fs_rule_tr(u64 id, int qpn) |
| { |
| struct res_fs_rule *ret; |
| |
| ret = kzalloc(sizeof(*ret), GFP_KERNEL); |
| if (!ret) |
| return NULL; |
| |
| ret->com.res_id = id; |
| ret->com.state = RES_FS_RULE_ALLOCATED; |
| ret->qpn = qpn; |
| return &ret->com; |
| } |
| |
| static struct res_common *alloc_tr(u64 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: |
| pr_err("implementation missing\n"); |
| return NULL; |
| case RES_COUNTER: |
| ret = alloc_counter_tr(id, extra); |
| break; |
| case RES_XRCD: |
| ret = alloc_xrcdn_tr(id); |
| break; |
| case RES_FS_RULE: |
| ret = alloc_fs_rule_tr(id, extra); |
| break; |
| default: |
| return NULL; |
| } |
| if (ret) |
| ret->owner = slave; |
| |
| return ret; |
| } |
| |
| int mlx4_calc_vf_counters(struct mlx4_dev *dev, int slave, int port, |
| struct mlx4_counter *data) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct res_common *tmp; |
| struct res_counter *counter; |
| int *counters_arr; |
| int i = 0, err = 0; |
| |
| memset(data, 0, sizeof(*data)); |
| |
| counters_arr = kmalloc_array(dev->caps.max_counters, |
| sizeof(*counters_arr), GFP_KERNEL); |
| if (!counters_arr) |
| return -ENOMEM; |
| |
| spin_lock_irq(mlx4_tlock(dev)); |
| list_for_each_entry(tmp, |
| &tracker->slave_list[slave].res_list[RES_COUNTER], |
| list) { |
| counter = container_of(tmp, struct res_counter, com); |
| if (counter->port == port) { |
| counters_arr[i] = (int)tmp->res_id; |
| i++; |
| } |
| } |
| spin_unlock_irq(mlx4_tlock(dev)); |
| counters_arr[i] = -1; |
| |
| i = 0; |
| |
| while (counters_arr[i] != -1) { |
| err = mlx4_get_counter_stats(dev, counters_arr[i], data, |
| 0); |
| if (err) { |
| memset(data, 0, sizeof(*data)); |
| goto table_changed; |
| } |
| i++; |
| } |
| |
| table_changed: |
| kfree(counters_arr); |
| return 0; |
| } |
| |
| static int add_res_range(struct mlx4_dev *dev, int slave, u64 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 rb_root *root = &tracker->res_tree[type]; |
| |
| res_arr = kcalloc(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 = res_tracker_insert(root, 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 >= 0; --i) { |
| rb_erase(&res_arr[i]->node, root); |
| list_del_init(&res_arr[i]->list); |
| } |
| |
| 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 || atomic_read(&res->ref_count) || |
| !list_empty(&res->mcg_list)) { |
| pr_err("resource tracker: fail to remove qp, state %d, ref_count %d\n", |
| res->com.state, atomic_read(&res->ref_count)); |
| 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)) { |
| pr_devel("%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_xrcdn_ok(struct res_xrcdn *res) |
| { |
| if (res->com.state == RES_XRCD_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_XRCD_ALLOCATED) |
| return -EPERM; |
| |
| return 0; |
| } |
| |
| static int remove_fs_rule_ok(struct res_fs_rule *res) |
| { |
| if (res->com.state == RES_FS_RULE_BUSY) |
| return -EBUSY; |
| else if (res->com.state != RES_FS_RULE_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 -EOPNOTSUPP; |
| case RES_EQ: |
| return remove_eq_ok((struct res_eq *)res); |
| case RES_COUNTER: |
| return remove_counter_ok((struct res_counter *)res); |
| case RES_XRCD: |
| return remove_xrcdn_ok((struct res_xrcdn *)res); |
| case RES_FS_RULE: |
| return remove_fs_rule_ok((struct res_fs_rule *)res); |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, |
| enum mlx4_resource type, int extra) |
| { |
| u64 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 = res_tracker_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 = res_tracker_lookup(&tracker->res_tree[type], i); |
| rb_erase(&r->node, &tracker->res_tree[type]); |
| 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 = res_tracker_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%llx\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%llx\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%llx\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 = 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 = res_tracker_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 = 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 = res_tracker_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; |
| } |
| } |
| |
| spin_unlock_irq(mlx4_tlock(dev)); |
| |
| if (!err && eq) |
| *eq = r; |
| |
| 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 = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn); |
| if (!r) { |
| err = -ENOENT; |
| } else if (r->com.owner != slave) { |
| err = -EPERM; |
| } else if (state == RES_CQ_ALLOCATED) { |
| if (r->com.state != RES_CQ_HW) |
| err = -EINVAL; |
| else if (atomic_read(&r->ref_count)) |
| err = -EBUSY; |
| else |
| err = 0; |
| } else if (state != RES_CQ_HW || r->com.state != RES_CQ_ALLOCATED) { |
| err = -EINVAL; |
| } else { |
| err = 0; |
| } |
| |
| 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_srq_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 = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index); |
| if (!r) { |
| err = -ENOENT; |
| } else if (r->com.owner != slave) { |
| err = -EPERM; |
| } else if (state == RES_SRQ_ALLOCATED) { |
| if (r->com.state != RES_SRQ_HW) |
| err = -EINVAL; |
| else if (atomic_read(&r->ref_count)) |
| err = -EBUSY; |
| } else if (state != RES_SRQ_HW || r->com.state != RES_SRQ_ALLOCATED) { |
| 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 = res_tracker_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 = res_tracker_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) && |
| (mlx4_is_master(dev) || mlx4_is_guest_proxy(dev, slave, qpn)); |
| } |
| |
| static int fw_reserved(struct mlx4_dev *dev, int qpn) |
| { |
| return qpn < dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW]; |
| } |
| |
| 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; |
| u8 flags; |
| |
| switch (op) { |
| case RES_OP_RESERVE: |
| count = get_param_l(&in_param) & 0xffffff; |
| /* Turn off all unsupported QP allocation flags that the |
| * slave tries to set. |
| */ |
| flags = (get_param_l(&in_param) >> 24) & dev->caps.alloc_res_qp_mask; |
| align = get_param_h(&in_param); |
| err = mlx4_grant_resource(dev, slave, RES_QP, count, 0); |
| if (err) |
| return err; |
| |
| err = __mlx4_qp_reserve_range(dev, count, align, &base, flags); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_QP, count, 0); |
| return err; |
| } |
| |
| err = add_res_range(dev, slave, base, count, RES_QP, 0); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_QP, count, 0); |
| __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 (!fw_reserved(dev, 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); |
| |
| err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0); |
| if (err) |
| return err; |
| |
| base = __mlx4_alloc_mtt_range(dev, order); |
| if (base == -1) { |
| mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); |
| return -ENOMEM; |
| } |
| |
| err = add_res_range(dev, slave, base, 1, RES_MTT, order); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0); |
| __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: |
| err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0); |
| if (err) |
| break; |
| |
| index = __mlx4_mpt_reserve(dev); |
| if (index == -1) { |
| mlx4_release_resource(dev, slave, RES_MPT, 1, 0); |
| break; |
| } |
| id = index & mpt_mask(dev); |
| |
| err = add_res_range(dev, slave, id, 1, RES_MPT, index); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_MPT, 1, 0); |
| __mlx4_mpt_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_mpt_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_grant_resource(dev, slave, RES_CQ, 1, 0); |
| if (err) |
| break; |
| |
| err = __mlx4_cq_alloc_icm(dev, &cqn); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_CQ, 1, 0); |
| break; |
| } |
| |
| err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_CQ, 1, 0); |
| __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_grant_resource(dev, slave, RES_SRQ, 1, 0); |
| if (err) |
| break; |
| |
| err = __mlx4_srq_alloc_icm(dev, &srqn); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); |
| break; |
| } |
| |
| err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_SRQ, 1, 0); |
| __mlx4_srq_free_icm(dev, srqn); |
| break; |
| } |
| |
| set_param_l(out_param, srqn); |
| break; |
| |
| default: |
| err = -EINVAL; |
| } |
| |
| return err; |
| } |
| |
| static int mac_find_smac_ix_in_slave(struct mlx4_dev *dev, int slave, int port, |
| u8 smac_index, u64 *mac) |
| { |
| 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->smac_index == smac_index && res->port == (u8) port) { |
| *mac = res->mac; |
| return 0; |
| } |
| } |
| return -ENOENT; |
| } |
| |
| static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port, u8 smac_index) |
| { |
| 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) { |
| /* mac found. update ref count */ |
| ++res->ref_count; |
| return 0; |
| } |
| } |
| |
| if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port)) |
| return -EINVAL; |
| res = kzalloc(sizeof(*res), GFP_KERNEL); |
| if (!res) { |
| mlx4_release_resource(dev, slave, RES_MAC, 1, port); |
| return -ENOMEM; |
| } |
| res->mac = mac; |
| res->port = (u8) port; |
| res->smac_index = smac_index; |
| res->ref_count = 1; |
| 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) { |
| if (!--res->ref_count) { |
| list_del(&res->list); |
| mlx4_release_resource(dev, slave, RES_MAC, 1, port); |
| 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; |
| int i; |
| |
| list_for_each_entry_safe(res, tmp, mac_list, list) { |
| list_del(&res->list); |
| /* dereference the mac the num times the slave referenced it */ |
| for (i = 0; i < res->ref_count; i++) |
| __mlx4_unregister_mac(dev, res->port, res->mac); |
| mlx4_release_resource(dev, slave, RES_MAC, 1, res->port); |
| kfree(res); |
| } |
| } |
| |
| static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param, int in_port) |
| { |
| int err = -EINVAL; |
| int port; |
| u64 mac; |
| u8 smac_index; |
| |
| if (op != RES_OP_RESERVE_AND_MAP) |
| return err; |
| |
| port = !in_port ? get_param_l(out_param) : in_port; |
| port = mlx4_slave_convert_port( |
| dev, slave, port); |
| |
| if (port < 0) |
| return -EINVAL; |
| mac = in_param; |
| |
| err = __mlx4_register_mac(dev, port, mac); |
| if (err >= 0) { |
| smac_index = err; |
| set_param_l(out_param, err); |
| err = 0; |
| } |
| |
| if (!err) { |
| err = mac_add_to_slave(dev, slave, mac, port, smac_index); |
| if (err) |
| __mlx4_unregister_mac(dev, port, mac); |
| } |
| return err; |
| } |
| |
| static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan, |
| int port, int vlan_index) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *vlan_list = |
| &tracker->slave_list[slave].res_list[RES_VLAN]; |
| struct vlan_res *res, *tmp; |
| |
| list_for_each_entry_safe(res, tmp, vlan_list, list) { |
| if (res->vlan == vlan && res->port == (u8) port) { |
| /* vlan found. update ref count */ |
| ++res->ref_count; |
| return 0; |
| } |
| } |
| |
| if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port)) |
| return -EINVAL; |
| res = kzalloc(sizeof(*res), GFP_KERNEL); |
| if (!res) { |
| mlx4_release_resource(dev, slave, RES_VLAN, 1, port); |
| return -ENOMEM; |
| } |
| res->vlan = vlan; |
| res->port = (u8) port; |
| res->vlan_index = vlan_index; |
| res->ref_count = 1; |
| list_add_tail(&res->list, |
| &tracker->slave_list[slave].res_list[RES_VLAN]); |
| return 0; |
| } |
| |
| |
| static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan, |
| int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; |
| struct list_head *vlan_list = |
| &tracker->slave_list[slave].res_list[RES_VLAN]; |
| struct vlan_res *res, *tmp; |
| |
| list_for_each_entry_safe(res, tmp, vlan_list, list) { |
| if (res->vlan == vlan && res->port == (u8) port) { |
| if (!--res->ref_count) { |
| list_del(&res->list); |
| mlx4_release_resource(dev, slave, RES_VLAN, |
| 1, port); |
| kfree(res); |
| } |
| break; |
| } |
| } |
| } |
| |
| static void rem_slave_vlans(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 *vlan_list = |
| &tracker->slave_list[slave].res_list[RES_VLAN]; |
| struct vlan_res *res, *tmp; |
| int i; |
| |
| list_for_each_entry_safe(res, tmp, vlan_list, list) { |
| list_del(&res->list); |
| /* dereference the vlan the num times the slave referenced it */ |
| for (i = 0; i < res->ref_count; i++) |
| __mlx4_unregister_vlan(dev, res->port, res->vlan); |
| mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port); |
| kfree(res); |
| } |
| } |
| |
| static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param, int in_port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; |
| int err; |
| u16 vlan; |
| int vlan_index; |
| int port; |
| |
| port = !in_port ? get_param_l(out_param) : in_port; |
| |
| if (!port || op != RES_OP_RESERVE_AND_MAP) |
| return -EINVAL; |
| |
| port = mlx4_slave_convert_port( |
| dev, slave, port); |
| |
| if (port < 0) |
| return -EINVAL; |
| /* upstream kernels had NOP for reg/unreg vlan. Continue this. */ |
| if (!in_port && port > 0 && port <= dev->caps.num_ports) { |
| slave_state[slave].old_vlan_api = true; |
| return 0; |
| } |
| |
| vlan = (u16) in_param; |
| |
| err = __mlx4_register_vlan(dev, port, vlan, &vlan_index); |
| if (!err) { |
| set_param_l(out_param, (u32) vlan_index); |
| err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index); |
| if (err) |
| __mlx4_unregister_vlan(dev, port, vlan); |
| } |
| return err; |
| } |
| |
| static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param, int port) |
| { |
| u32 index; |
| int err; |
| |
| if (op != RES_OP_RESERVE) |
| return -EINVAL; |
| |
| err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0); |
| if (err) |
| return err; |
| |
| err = __mlx4_counter_alloc(dev, &index); |
| if (err) { |
| mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); |
| return err; |
| } |
| |
| err = add_res_range(dev, slave, index, 1, RES_COUNTER, port); |
| if (err) { |
| __mlx4_counter_free(dev, index); |
| mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); |
| } else { |
| set_param_l(out_param, index); |
| } |
| |
| return err; |
| } |
| |
| static int xrcdn_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| u32 xrcdn; |
| int err; |
| |
| if (op != RES_OP_RESERVE) |
| return -EINVAL; |
| |
| err = __mlx4_xrcd_alloc(dev, &xrcdn); |
| if (err) |
| return err; |
| |
| err = add_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); |
| if (err) |
| __mlx4_xrcd_free(dev, xrcdn); |
| else |
| set_param_l(out_param, xrcdn); |
| |
| 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 & 0xFF) { |
| 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, |
| (vhcr->in_modifier >> 8) & 0xFF); |
| break; |
| |
| case RES_VLAN: |
| err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param, |
| (vhcr->in_modifier >> 8) & 0xFF); |
| break; |
| |
| case RES_COUNTER: |
| err = counter_alloc_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param, 0); |
| break; |
| |
| case RES_XRCD: |
| err = xrcdn_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_release_resource(dev, slave, RES_QP, count, 0); |
| __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 (!fw_reserved(dev, 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_release_resource(dev, slave, RES_MTT, 1 << order, 0); |
| __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_release_resource(dev, slave, RES_MPT, 1, 0); |
| __mlx4_mpt_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_mpt_free_icm(dev, mpt->key); |
| res_end_move(dev, slave, RES_MPT, id); |
| 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_release_resource(dev, slave, RES_CQ, 1, 0); |
| __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_release_resource(dev, slave, RES_SRQ, 1, 0); |
| __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 in_port) |
| { |
| int port; |
| int err = 0; |
| |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| port = !in_port ? get_param_l(out_param) : in_port; |
| port = mlx4_slave_convert_port( |
| dev, slave, port); |
| |
| if (port < 0) |
| return -EINVAL; |
| mac_del_from_slave(dev, slave, in_param, port); |
| __mlx4_unregister_mac(dev, port, in_param); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| |
| } |
| |
| static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param, int port) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state; |
| int err = 0; |
| |
| port = mlx4_slave_convert_port( |
| dev, slave, port); |
| |
| if (port < 0) |
| return -EINVAL; |
| switch (op) { |
| case RES_OP_RESERVE_AND_MAP: |
| if (slave_state[slave].old_vlan_api) |
| return 0; |
| if (!port) |
| return -EINVAL; |
| vlan_del_from_slave(dev, slave, in_param, port); |
| __mlx4_unregister_vlan(dev, port, in_param); |
| break; |
| default: |
| err = -EINVAL; |
| break; |
| } |
| |
| return err; |
| } |
| |
| static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int index; |
| int err; |
| |
| if (op != RES_OP_RESERVE) |
| return -EINVAL; |
| |
| index = get_param_l(&in_param); |
| if (index == MLX4_SINK_COUNTER_INDEX(dev)) |
| return 0; |
| |
| err = rem_res_range(dev, slave, index, 1, RES_COUNTER, 0); |
| if (err) |
| return err; |
| |
| __mlx4_counter_free(dev, index); |
| mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0); |
| |
| return err; |
| } |
| |
| static int xrcdn_free_res(struct mlx4_dev *dev, int slave, int op, int cmd, |
| u64 in_param, u64 *out_param) |
| { |
| int xrcdn; |
| int err; |
| |
| if (op != RES_OP_RESERVE) |
| return -EINVAL; |
| |
| xrcdn = get_param_l(&in_param); |
| err = rem_res_range(dev, slave, xrcdn, 1, RES_XRCD, 0); |
| if (err) |
| return err; |
| |
| __mlx4_xrcd_free(dev, xrcdn); |
| |
| 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 & 0xFF) { |
| 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, |
| (vhcr->in_modifier >> 8) & 0xFF); |
| break; |
| |
| case RES_VLAN: |
| err = vlan_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param, |
| (vhcr->in_modifier >> 8) & 0xFF); |
| break; |
| |
| case RES_COUNTER: |
| err = counter_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| break; |
| |
| case RES_XRCD: |
| err = xrcdn_free_res(dev, slave, vhcr->op_modifier, alop, |
| vhcr->in_param, &vhcr->out_param); |
| |
| 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_addr(struct mlx4_mpt_entry *mpt) |
| { |
| return (int)be64_to_cpu(mpt->mtt_addr) & 0xfffffff8; |
| } |
| |
| static int mr_get_mtt_size(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->mtt_sz); |
| } |
| |
| static u32 mr_get_pd(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->pd_flags) & 0x00ffffff; |
| } |
| |
| static int mr_is_fmr(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->pd_flags) & MLX4_MPT_PD_FLAG_FAST_REG; |
| } |
| |
| static int mr_is_bind_enabled(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_BIND_ENABLE; |
| } |
| |
| static int mr_is_region(struct mlx4_mpt_entry *mpt) |
| { |
| return be32_to_cpu(mpt->flags) & MLX4_MPT_FLAG_REGION; |
| } |
| |
| static int qp_get_mtt_addr(struct mlx4_qp_context *qpc) |
| { |
| return be32_to_cpu(qpc->mtt_base_addr_l) & 0xfffffff8; |
| } |
| |
| static int srq_get_mtt_addr(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; |
| u32 ts = (be32_to_cpu(qpc->flags) >> 16) & 0xff; |
| int xrc = (ts == MLX4_QP_ST_XRC) ? 1 : 0; |
| 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 check_mtt_range(struct mlx4_dev *dev, int slave, int start, |
| int size, struct res_mtt *mtt) |
| { |
| int res_start = mtt->com.res_id; |
| int res_size = (1 << mtt->order); |
| |
| 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 = NULL; |
| int mtt_base = mr_get_mtt_addr(inbox->buf) / dev->caps.mtt_entry_sz; |
| int phys; |
| int id; |
| u32 pd; |
| int pd_slave; |
| |
| id = index & mpt_mask(dev); |
| err = mr_res_start_move_to(dev, slave, id, RES_MPT_HW, &mpt); |
| if (err) |
| return err; |
| |
| /* Disable memory windows for VFs. */ |
| if (!mr_is_region(inbox->buf)) { |
| err = -EPERM; |
| goto ex_abort; |
| } |
| |
| /* Make sure that the PD bits related to the slave id are zeros. */ |
| pd = mr_get_pd(inbox->buf); |
| pd_slave = (pd >> 17) & 0x7f; |
| if (pd_slave != 0 && --pd_slave != slave) { |
| err = -EPERM; |
| goto ex_abort; |
| } |
| |
| if (mr_is_fmr(inbox->buf)) { |
| /* FMR and Bind Enable are forbidden in slave devices. */ |
| if (mr_is_bind_enabled(inbox->buf)) { |
| err = -EPERM; |
| goto ex_abort; |
| } |
| /* FMR and Memory Windows are also forbidden. */ |
| if (!mr_is_region(inbox->buf)) { |
| err = -EPERM; |
| goto ex_abort; |
| } |
| } |
| |
| phys = mr_phys_mpt(inbox->buf); |
| if (!phys) { |
| err = get_res(dev, slave, mtt_base, 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; |
| } |
| |
| 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_MAPPED) { |
| /* In order to allow rereg in SRIOV, we need to alter the MPT entry. To do |
| * that, the VF must read the MPT. But since the MPT entry memory is not |
| * in the VF's virtual memory space, it must use QUERY_MPT to obtain the |
| * entry contents. To guarantee that the MPT cannot be changed, the driver |
| * must perform HW2SW_MPT before this query and return the MPT entry to HW |
| * ownership fofollowing the change. The change here allows the VF to |
| * perform QUERY_MPT also when the entry is in SW ownership. |
| */ |
| struct mlx4_mpt_entry *mpt_entry = mlx4_table_find( |
| &mlx4_priv(dev)->mr_table.dmpt_table, |
| mpt->key, NULL); |
| |
| if (NULL == mpt_entry || NULL == outbox->buf) { |
| err = -EINVAL; |
| goto out; |
| } |
| |
| memcpy(outbox->buf, mpt_entry, sizeof(*mpt_entry)); |
| |
| err = 0; |
| } else if (mpt->com.from_state == RES_MPT_HW) { |
| err = mlx4_DMA_wrapper(dev, slave, vhcr, inbox, outbox, cmd); |
| } else { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| |
| 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) |
| { |
|