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path: root/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/resource_tracker.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/resource_tracker.c285
1 files changed, 237 insertions, 48 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index b45d0e7f6ab..94ceddd17ab 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -41,13 +41,12 @@
#include <linux/slab.h>
#include <linux/mlx4/cmd.h>
#include <linux/mlx4/qp.h>
+#include <linux/if_ether.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;
@@ -57,7 +56,8 @@ struct mac_res {
struct res_common {
struct list_head list;
- u32 res_id;
+ struct rb_node node;
+ u64 res_id;
int owner;
int state;
int from_state;
@@ -189,6 +189,58 @@ struct res_xrcdn {
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;
+};
+
+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 = container_of(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 = container_of(*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;
+}
+
/* For Debug uses */
static const char *ResourceType(enum mlx4_resource rt)
{
@@ -201,6 +253,7 @@ static const char *ResourceType(enum mlx4_resource rt)
case RES_MAC: return "RES_MAC";
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 !!!";
};
@@ -228,8 +281,7 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
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);
+ priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
spin_lock_init(&priv->mfunc.master.res_tracker.lock);
return 0 ;
@@ -277,11 +329,11 @@ static void *find_res(struct mlx4_dev *dev, int res_id,
{
struct mlx4_priv *priv = mlx4_priv(dev);
- return radix_tree_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
- res_id);
+ return res_tracker_lookup(&priv->mfunc.master.res_tracker.res_tree[type],
+ res_id);
}
-static int get_res(struct mlx4_dev *dev, int slave, int res_id,
+static int get_res(struct mlx4_dev *dev, int slave, u64 res_id,
enum mlx4_resource type,
void *res)
{
@@ -307,7 +359,7 @@ static int get_res(struct mlx4_dev *dev, int slave, int res_id,
r->from_state = r->state;
r->state = RES_ANY_BUSY;
- mlx4_dbg(dev, "res %s id 0x%x to busy\n",
+ mlx4_dbg(dev, "res %s id 0x%llx to busy\n",
ResourceType(type), r->res_id);
if (res)
@@ -320,7 +372,7 @@ exit:
int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
enum mlx4_resource type,
- int res_id, int *slave)
+ u64 res_id, int *slave)
{
struct res_common *r;
@@ -341,7 +393,7 @@ int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
return err;
}
-static void put_res(struct mlx4_dev *dev, int slave, int res_id,
+static void put_res(struct mlx4_dev *dev, int slave, u64 res_id,
enum mlx4_resource type)
{
struct res_common *r;
@@ -473,7 +525,21 @@ static struct res_common *alloc_xrcdn_tr(int id)
return &ret->com;
}
-static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave,
+static struct res_common *alloc_fs_rule_tr(u64 id)
+{
+ 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;
+
+ return &ret->com;
+}
+
+static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave,
int extra)
{
struct res_common *ret;
@@ -506,6 +572,9 @@ static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave,
case RES_XRCD:
ret = alloc_xrcdn_tr(id);
break;
+ case RES_FS_RULE:
+ ret = alloc_fs_rule_tr(id);
+ break;
default:
return NULL;
}
@@ -515,7 +584,7 @@ static struct res_common *alloc_tr(int id, enum mlx4_resource type, int slave,
return ret;
}
-static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count,
+static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
enum mlx4_resource type, int extra)
{
int i;
@@ -523,7 +592,7 @@ static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count,
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];
+ struct rb_root *root = &tracker->res_tree[type];
res_arr = kzalloc(count * sizeof *res_arr, GFP_KERNEL);
if (!res_arr)
@@ -546,7 +615,7 @@ static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count,
err = -EEXIST;
goto undo;
}
- err = radix_tree_insert(root, base + i, res_arr[i]);
+ err = res_tracker_insert(root, res_arr[i]);
if (err)
goto undo;
list_add_tail(&res_arr[i]->list,
@@ -559,7 +628,7 @@ static int add_res_range(struct mlx4_dev *dev, int slave, int base, int count,
undo:
for (--i; i >= base; --i)
- radix_tree_delete(&tracker->res_tree[type], i);
+ rb_erase(&res_arr[i]->node, root);
spin_unlock_irq(mlx4_tlock(dev));
@@ -638,6 +707,16 @@ static int remove_xrcdn_ok(struct res_xrcdn *res)
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)
@@ -679,15 +758,17 @@ static int remove_ok(struct res_common *res, enum mlx4_resource type, int extra)
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, int base, int count,
+static int rem_res_range(struct mlx4_dev *dev, int slave, u64 base, int count,
enum mlx4_resource type, int extra)
{
- int i;
+ u64 i;
int err;
struct mlx4_priv *priv = mlx4_priv(dev);
struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
@@ -695,7 +776,7 @@ static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count,
spin_lock_irq(mlx4_tlock(dev));
for (i = base; i < base + count; ++i) {
- r = radix_tree_lookup(&tracker->res_tree[type], i);
+ r = res_tracker_lookup(&tracker->res_tree[type], i);
if (!r) {
err = -ENOENT;
goto out;
@@ -710,8 +791,8 @@ static int rem_res_range(struct mlx4_dev *dev, int slave, int base, int count,
}
for (i = base; i < base + count; ++i) {
- r = radix_tree_lookup(&tracker->res_tree[type], i);
- radix_tree_delete(&tracker->res_tree[type], i);
+ r = res_tracker_lookup(&tracker->res_tree[type], i);
+ rb_erase(&r->node, &tracker->res_tree[type]);
list_del(&r->list);
kfree(r);
}
@@ -733,7 +814,7 @@ static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
int err = 0;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[RES_QP], qpn);
+ r = res_tracker_lookup(&tracker->res_tree[RES_QP], qpn);
if (!r)
err = -ENOENT;
else if (r->com.owner != slave)
@@ -741,7 +822,7 @@ static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
else {
switch (state) {
case RES_QP_BUSY:
- mlx4_dbg(dev, "%s: failed RES_QP, 0x%x\n",
+ mlx4_dbg(dev, "%s: failed RES_QP, 0x%llx\n",
__func__, r->com.res_id);
err = -EBUSY;
break;
@@ -750,7 +831,7 @@ static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
if (r->com.state == RES_QP_MAPPED && !alloc)
break;
- mlx4_dbg(dev, "failed RES_QP, 0x%x\n", r->com.res_id);
+ mlx4_dbg(dev, "failed RES_QP, 0x%llx\n", r->com.res_id);
err = -EINVAL;
break;
@@ -759,7 +840,7 @@ static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
r->com.state == RES_QP_HW)
break;
else {
- mlx4_dbg(dev, "failed RES_QP, 0x%x\n",
+ mlx4_dbg(dev, "failed RES_QP, 0x%llx\n",
r->com.res_id);
err = -EINVAL;
}
@@ -779,7 +860,7 @@ static int qp_res_start_move_to(struct mlx4_dev *dev, int slave, int qpn,
r->com.to_state = state;
r->com.state = RES_QP_BUSY;
if (qp)
- *qp = (struct res_qp *)r;
+ *qp = r;
}
}
@@ -797,7 +878,7 @@ static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
int err = 0;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[RES_MPT], index);
+ r = res_tracker_lookup(&tracker->res_tree[RES_MPT], index);
if (!r)
err = -ENOENT;
else if (r->com.owner != slave)
@@ -832,7 +913,7 @@ static int mr_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
r->com.to_state = state;
r->com.state = RES_MPT_BUSY;
if (mpt)
- *mpt = (struct res_mpt *)r;
+ *mpt = r;
}
}
@@ -850,7 +931,7 @@ static int eq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
int err = 0;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[RES_EQ], index);
+ r = res_tracker_lookup(&tracker->res_tree[RES_EQ], index);
if (!r)
err = -ENOENT;
else if (r->com.owner != slave)
@@ -898,7 +979,7 @@ static int cq_res_start_move_to(struct mlx4_dev *dev, int slave, int cqn,
int err;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[RES_CQ], cqn);
+ r = res_tracker_lookup(&tracker->res_tree[RES_CQ], cqn);
if (!r)
err = -ENOENT;
else if (r->com.owner != slave)
@@ -952,7 +1033,7 @@ static int srq_res_start_move_to(struct mlx4_dev *dev, int slave, int index,
int err = 0;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[RES_SRQ], index);
+ r = res_tracker_lookup(&tracker->res_tree[RES_SRQ], index);
if (!r)
err = -ENOENT;
else if (r->com.owner != slave)
@@ -1001,7 +1082,7 @@ static void res_abort_move(struct mlx4_dev *dev, int slave,
struct res_common *r;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[type], id);
+ 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));
@@ -1015,7 +1096,7 @@ static void res_end_move(struct mlx4_dev *dev, int slave,
struct res_common *r;
spin_lock_irq(mlx4_tlock(dev));
- r = radix_tree_lookup(&tracker->res_tree[type], id);
+ 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));
@@ -2695,6 +2776,60 @@ ex_put:
return err;
}
+int mlx4_QP_FLOW_STEERING_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)
+{
+ int err;
+
+ if (dev->caps.steering_mode !=
+ MLX4_STEERING_MODE_DEVICE_MANAGED)
+ return -EOPNOTSUPP;
+
+ err = mlx4_cmd_imm(dev, inbox->dma, &vhcr->out_param,
+ vhcr->in_modifier, 0,
+ MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
+ MLX4_CMD_NATIVE);
+ if (err)
+ return err;
+
+ err = add_res_range(dev, slave, vhcr->out_param, 1, RES_FS_RULE, 0);
+ if (err) {
+ mlx4_err(dev, "Fail to add flow steering resources.\n ");
+ /* detach rule*/
+ mlx4_cmd(dev, vhcr->out_param, 0, 0,
+ MLX4_QP_FLOW_STEERING_ATTACH, MLX4_CMD_TIME_CLASS_A,
+ MLX4_CMD_NATIVE);
+ }
+ return err;
+}
+
+int mlx4_QP_FLOW_STEERING_DETACH_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;
+
+ if (dev->caps.steering_mode !=
+ MLX4_STEERING_MODE_DEVICE_MANAGED)
+ return -EOPNOTSUPP;
+
+ err = rem_res_range(dev, slave, vhcr->in_param, 1, RES_FS_RULE, 0);
+ if (err) {
+ mlx4_err(dev, "Fail to remove flow steering resources.\n ");
+ return err;
+ }
+
+ err = mlx4_cmd(dev, vhcr->in_param, 0, 0,
+ MLX4_QP_FLOW_STEERING_DETACH, MLX4_CMD_TIME_CLASS_A,
+ MLX4_CMD_NATIVE);
+ return err;
+}
+
enum {
BUSY_MAX_RETRIES = 10
};
@@ -2751,7 +2886,7 @@ static int _move_all_busy(struct mlx4_dev *dev, int slave,
if (r->state == RES_ANY_BUSY) {
if (print)
mlx4_dbg(dev,
- "%s id 0x%x is busy\n",
+ "%s id 0x%llx is busy\n",
ResourceType(type),
r->res_id);
++busy;
@@ -2817,8 +2952,8 @@ static void rem_slave_qps(struct mlx4_dev *dev, int slave)
switch (state) {
case RES_QP_RESERVED:
spin_lock_irq(mlx4_tlock(dev));
- radix_tree_delete(&tracker->res_tree[RES_QP],
- qp->com.res_id);
+ rb_erase(&qp->com.node,
+ &tracker->res_tree[RES_QP]);
list_del(&qp->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(qp);
@@ -2888,8 +3023,8 @@ static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
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);
+ rb_erase(&srq->com.node,
+ &tracker->res_tree[RES_SRQ]);
list_del(&srq->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(srq);
@@ -2954,8 +3089,8 @@ static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
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);
+ rb_erase(&cq->com.node,
+ &tracker->res_tree[RES_CQ]);
list_del(&cq->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(cq);
@@ -3017,8 +3152,8 @@ static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
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);
+ rb_erase(&mpt->com.node,
+ &tracker->res_tree[RES_MPT]);
list_del(&mpt->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(mpt);
@@ -3086,8 +3221,8 @@ static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
__mlx4_free_mtt_range(dev, base,
mtt->order);
spin_lock_irq(mlx4_tlock(dev));
- radix_tree_delete(&tracker->res_tree[RES_MTT],
- base);
+ rb_erase(&mtt->com.node,
+ &tracker->res_tree[RES_MTT]);
list_del(&mtt->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(mtt);
@@ -3104,6 +3239,58 @@ static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
spin_unlock_irq(mlx4_tlock(dev));
}
+static void rem_slave_fs_rule(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 *fs_rule_list =
+ &tracker->slave_list[slave].res_list[RES_FS_RULE];
+ struct res_fs_rule *fs_rule;
+ struct res_fs_rule *tmp;
+ int state;
+ u64 base;
+ int err;
+
+ err = move_all_busy(dev, slave, RES_FS_RULE);
+ if (err)
+ mlx4_warn(dev, "rem_slave_fs_rule: Could not move all mtts to busy for slave %d\n",
+ slave);
+
+ spin_lock_irq(mlx4_tlock(dev));
+ list_for_each_entry_safe(fs_rule, tmp, fs_rule_list, com.list) {
+ spin_unlock_irq(mlx4_tlock(dev));
+ if (fs_rule->com.owner == slave) {
+ base = fs_rule->com.res_id;
+ state = fs_rule->com.from_state;
+ while (state != 0) {
+ switch (state) {
+ case RES_FS_RULE_ALLOCATED:
+ /* detach rule */
+ err = mlx4_cmd(dev, base, 0, 0,
+ MLX4_QP_FLOW_STEERING_DETACH,
+ MLX4_CMD_TIME_CLASS_A,
+ MLX4_CMD_NATIVE);
+
+ spin_lock_irq(mlx4_tlock(dev));
+ rb_erase(&fs_rule->com.node,
+ &tracker->res_tree[RES_FS_RULE]);
+ list_del(&fs_rule->com.list);
+ spin_unlock_irq(mlx4_tlock(dev));
+ kfree(fs_rule);
+ 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);
@@ -3133,8 +3320,8 @@ static void rem_slave_eqs(struct mlx4_dev *dev, int slave)
switch (state) {
case RES_EQ_RESERVED:
spin_lock_irq(mlx4_tlock(dev));
- radix_tree_delete(&tracker->res_tree[RES_EQ],
- eqn);
+ rb_erase(&eq->com.node,
+ &tracker->res_tree[RES_EQ]);
list_del(&eq->com.list);
spin_unlock_irq(mlx4_tlock(dev));
kfree(eq);
@@ -3191,7 +3378,8 @@ static void rem_slave_counters(struct mlx4_dev *dev, int slave)
list_for_each_entry_safe(counter, tmp, counter_list, com.list) {
if (counter->com.owner == slave) {
index = counter->com.res_id;
- radix_tree_delete(&tracker->res_tree[RES_COUNTER], index);
+ rb_erase(&counter->com.node,
+ &tracker->res_tree[RES_COUNTER]);
list_del(&counter->com.list);
kfree(counter);
__mlx4_counter_free(dev, index);
@@ -3220,7 +3408,7 @@ static void rem_slave_xrcdns(struct mlx4_dev *dev, int slave)
list_for_each_entry_safe(xrcd, tmp, xrcdn_list, com.list) {
if (xrcd->com.owner == slave) {
xrcdn = xrcd->com.res_id;
- radix_tree_delete(&tracker->res_tree[RES_XRCD], xrcdn);
+ rb_erase(&xrcd->com.node, &tracker->res_tree[RES_XRCD]);
list_del(&xrcd->com.list);
kfree(xrcd);
__mlx4_xrcd_free(dev, xrcdn);
@@ -3244,5 +3432,6 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
rem_slave_mtts(dev, slave);
rem_slave_counters(dev, slave);
rem_slave_xrcdns(dev, slave);
+ rem_slave_fs_rule(dev, slave);
mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
}