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InfiniBand/RDMA updates for 4.1:

Browse Source 
- IPoIB fixes from Doug Ledford and Erez Shitrit
  - iSER updates from Sagi Grimberg
  - mlx4 GUID handling changes from Yishai Hadas
  - other misc fixes
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull InfiniBand/RDMA updates from Roland Dreier:

 - IPoIB fixes from Doug Ledford and Erez Shitrit

 - iSER updates from Sagi Grimberg

 - mlx4 GUID handling changes from Yishai Hadas

 - other misc fixes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (51 commits)
  mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures
  IB/iser: Rewrite bounce buffer code path
  IB/iser: Bump version to 1.6
  IB/iser: Remove code duplication for a single DMA entry
  IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr
  IB/iser: Modify struct iser_mem_reg members
  IB/iser: Make fastreg pool cache friendly
  IB/iser: Move PI context alloc/free to routines
  IB/iser: Move fastreg descriptor pool get/put to helper functions
  IB/iser: Merge build page-vec into register page-vec
  IB/iser: Get rid of struct iser_rdma_regd
  IB/iser: Remove redundant assignments in iser_reg_page_vec
  IB/iser: Move memory reg/dereg routines to iser_memory.c
  IB/iser: Don't pass ib_device to fall_to_bounce_buff routine
  IB/iser: Remove a redundant struct iser_data_buf
  IB/iser: Remove redundant cmd_data_len calculation
  IB/iser: Fix wrong calculation of protection buffer length
  IB/iser: Handle fastreg/local_inv completion errors
  IB/iser: Fix unload during ep_poll wrong dereference
  ib_srpt: convert printk's to pr_* functions
  ...
This commit is contained in:
Linus Torvalds 2015-04-22 11:50:05 -07:00
commit 7c034dfd58
28 changed files with 1519 additions and 1140 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/filesystems/nfs/nfs-rdma.txt
View File

@ -187,8 +187,10 @@ Check RDMA and NFS Setup
To further test the InfiniBand software stack, use IPoIB (this
assumes you have two IB hosts named host1 and host2):
host1$ ifconfig ib0 a.b.c.x
host2$ ifconfig ib0 a.b.c.y
host1$ ip link set dev ib0 up
host1$ ip address add dev ib0 a.b.c.x
host2$ ip link set dev ib0 up
host2$ ip address add dev ib0 a.b.c.y
host1$ ping a.b.c.y
host2$ ping a.b.c.x
@ -229,7 +231,8 @@ NFS/RDMA Setup
$ modprobe ib_mthca
$ modprobe ib_ipoib
$ ifconfig ib0 a.b.c.d
$ ip li set dev ib0 up
$ ip addr add dev ib0 a.b.c.d
NOTE: use unique addresses for the client and server

9
MAINTAINERS
View File

@ -8803,6 +8803,15 @@ W: http://www.emulex.com
S: Supported
F: drivers/net/ethernet/emulex/benet/
EMULEX ONECONNECT ROCE DRIVER
M: Selvin Xavier <selvin.xavier@emulex.com>
M: Devesh Sharma <devesh.sharma@emulex.com>
M: Mitesh Ahuja <mitesh.ahuja@emulex.com>
L: linux-rdma@vger.kernel.org
W: http://www.emulex.com
S: Supported
F: drivers/infiniband/hw/ocrdma/
SFC NETWORK DRIVER
M: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
M: Shradha Shah <sshah@solarflare.com>

7
drivers/infiniband/core/umem.c
View File

@ -99,12 +99,15 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
if (dmasync)
dma_set_attr(DMA_ATTR_WRITE_BARRIER, &attrs);
if (!size)
return ERR_PTR(-EINVAL);
/*
* If the combination of the addr and size requested for this memory
* region causes an integer overflow, return error.
*/
if ((PAGE_ALIGN(addr + size) <= size) ||
(PAGE_ALIGN(addr + size) <= addr))
if (((addr + size) < addr) ||
PAGE_ALIGN(addr + size) < (addr + size))
return ERR_PTR(-EINVAL);
if (!can_do_mlock())

22
drivers/infiniband/core/uverbs_main.c
View File

@ -246,6 +246,17 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
kfree(uqp);
}
list_for_each_entry_safe(uobj, tmp, &context->srq_list, list) {
struct ib_srq *srq = uobj->object;
struct ib_uevent_object *uevent =
container_of(uobj, struct ib_uevent_object, uobject);
idr_remove_uobj(&ib_uverbs_srq_idr, uobj);
ib_destroy_srq(srq);
ib_uverbs_release_uevent(file, uevent);
kfree(uevent);
}
list_for_each_entry_safe(uobj, tmp, &context->cq_list, list) {
struct ib_cq *cq = uobj->object;
struct ib_uverbs_event_file *ev_file = cq->cq_context;
@ -258,17 +269,6 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
kfree(ucq);
}
list_for_each_entry_safe(uobj, tmp, &context->srq_list, list) {
struct ib_srq *srq = uobj->object;
struct ib_uevent_object *uevent =
container_of(uobj, struct ib_uevent_object, uobject);
idr_remove_uobj(&ib_uverbs_srq_idr, uobj);
ib_destroy_srq(srq);
ib_uverbs_release_uevent(file, uevent);
kfree(uevent);
}
list_for_each_entry_safe(uobj, tmp, &context->mr_list, list) {
struct ib_mr *mr = uobj->object;

463
drivers/infiniband/hw/mlx4/alias_GUID.c
View File

@ -58,14 +58,19 @@ struct mlx4_alias_guid_work_context {
int query_id;
struct list_head list;
int block_num;
ib_sa_comp_mask guid_indexes;
u8 method;
};
struct mlx4_next_alias_guid_work {
u8 port;
u8 block_num;
u8 method;
struct mlx4_sriov_alias_guid_info_rec_det rec_det;
};
static int get_low_record_time_index(struct mlx4_ib_dev *dev, u8 port,
int *resched_delay_sec);
void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev, int block_num,
u8 port_num, u8 *p_data)
@ -118,6 +123,57 @@ ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index)
return IB_SA_COMP_MASK(4 + index);
}
void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
int port, int slave_init)
{
__be64 curr_guid, required_guid;
int record_num = slave / 8;
int index = slave % 8;
int port_index = port - 1;
unsigned long flags;
int do_work = 0;
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
if (dev->sriov.alias_guid.ports_guid[port_index].state_flags &
GUID_STATE_NEED_PORT_INIT)
goto unlock;
if (!slave_init) {
curr_guid = *(__be64 *)&dev->sriov.
alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].
all_recs[GUID_REC_SIZE * index];
if (curr_guid == cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL) ||
!curr_guid)
goto unlock;
required_guid = cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL);
} else {
required_guid = mlx4_get_admin_guid(dev->dev, slave, port);
if (required_guid == cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL))
goto unlock;
}
*(__be64 *)&dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].
all_recs[GUID_REC_SIZE * index] = required_guid;
dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].guid_indexes
|= mlx4_ib_get_aguid_comp_mask_from_ix(index);
dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].status
= MLX4_GUID_INFO_STATUS_IDLE;
/* set to run immediately */
dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].time_to_run = 0;
dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[record_num].
guids_retry_schedule[index] = 0;
do_work = 1;
unlock:
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
if (do_work)
mlx4_ib_init_alias_guid_work(dev, port_index);
}
/*
* Whenever new GUID is set/unset (guid table change) create event and
* notify the relevant slave (master also should be notified).
@ -138,10 +194,15 @@ void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
enum slave_port_state prev_state;
__be64 tmp_cur_ag, form_cache_ag;
enum slave_port_gen_event gen_event;
struct mlx4_sriov_alias_guid_info_rec_det *rec;
unsigned long flags;
__be64 required_value;
if (!mlx4_is_master(dev->dev))
return;
rec = &dev->sriov.alias_guid.ports_guid[port_num - 1].
all_rec_per_port[block_num];
guid_indexes = be64_to_cpu((__force __be64) dev->sriov.alias_guid.
ports_guid[port_num - 1].
all_rec_per_port[block_num].guid_indexes);
@ -166,8 +227,27 @@ void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
*/
if (tmp_cur_ag != form_cache_ag)
continue;
mlx4_gen_guid_change_eqe(dev->dev, slave_id, port_num);
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
required_value = *(__be64 *)&rec->all_recs[i * GUID_REC_SIZE];
if (required_value == cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL))
required_value = 0;
if (tmp_cur_ag == required_value) {
rec->guid_indexes = rec->guid_indexes &
~mlx4_ib_get_aguid_comp_mask_from_ix(i);
} else {
/* may notify port down if value is 0 */
if (tmp_cur_ag != MLX4_NOT_SET_GUID) {
spin_unlock_irqrestore(&dev->sriov.
alias_guid.ag_work_lock, flags);
continue;
}
}
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock,
flags);
mlx4_gen_guid_change_eqe(dev->dev, slave_id, port_num);
/*2 cases: Valid GUID, and Invalid Guid*/
if (tmp_cur_ag != MLX4_NOT_SET_GUID) { /*valid GUID*/
@ -188,10 +268,14 @@ void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev,
set_and_calc_slave_port_state(dev->dev, slave_id, port_num,
MLX4_PORT_STATE_IB_EVENT_GID_INVALID,
&gen_event);
pr_debug("sending PORT DOWN event to slave: %d, port: %d\n",
slave_id, port_num);
mlx4_gen_port_state_change_eqe(dev->dev, slave_id, port_num,
MLX4_PORT_CHANGE_SUBTYPE_DOWN);
if (gen_event == SLAVE_PORT_GEN_EVENT_DOWN) {
pr_debug("sending PORT DOWN event to slave: %d, port: %d\n",
slave_id, port_num);
mlx4_gen_port_state_change_eqe(dev->dev,
slave_id,
port_num,
MLX4_PORT_CHANGE_SUBTYPE_DOWN);
}
}
}
}
@ -206,6 +290,9 @@ static void aliasguid_query_handler(int status,
int i;
struct mlx4_sriov_alias_guid_info_rec_det *rec;
unsigned long flags, flags1;
ib_sa_comp_mask declined_guid_indexes = 0;
ib_sa_comp_mask applied_guid_indexes = 0;
unsigned int resched_delay_sec = 0;
if (!context)
return;
@ -216,9 +303,9 @@ static void aliasguid_query_handler(int status,
all_rec_per_port[cb_ctx->block_num];
if (status) {
rec->status = MLX4_GUID_INFO_STATUS_IDLE;
pr_debug("(port: %d) failed: status = %d\n",
cb_ctx->port, status);
rec->time_to_run = ktime_get_real_ns() + 1 * NSEC_PER_SEC;
goto out;
}
@ -235,57 +322,101 @@ static void aliasguid_query_handler(int status,
rec = &dev->sriov.alias_guid.ports_guid[port_index].
all_rec_per_port[guid_rec->block_num];
rec->status = MLX4_GUID_INFO_STATUS_SET;
rec->method = MLX4_GUID_INFO_RECORD_SET;
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
for (i = 0 ; i < NUM_ALIAS_GUID_IN_REC; i++) {
__be64 tmp_cur_ag;
tmp_cur_ag = *(__be64 *)&guid_rec->guid_info_list[i * GUID_REC_SIZE];
/* check if the SM didn't assign one of the records.
* if it didn't, if it was not sysadmin request:
* ask the SM to give a new GUID, (instead of the driver request).
*/
if (tmp_cur_ag == MLX4_NOT_SET_GUID) {
mlx4_ib_warn(&dev->ib_dev, "%s:Record num %d in "
"block_num: %d was declined by SM, "
"ownership by %d (0 = driver, 1=sysAdmin,"
" 2=None)\n", __func__, i,
guid_rec->block_num, rec->ownership);
if (rec->ownership == MLX4_GUID_DRIVER_ASSIGN) {
/* if it is driver assign, asks for new GUID from SM*/
*(__be64 *)&rec->all_recs[i * GUID_REC_SIZE] =
MLX4_NOT_SET_GUID;
__be64 sm_response, required_val;
/* Mark the record as not assigned, and let it
* be sent again in the next work sched.*/
rec->status = MLX4_GUID_INFO_STATUS_IDLE;
rec->guid_indexes |= mlx4_ib_get_aguid_comp_mask_from_ix(i);
}
if (!(cb_ctx->guid_indexes &
mlx4_ib_get_aguid_comp_mask_from_ix(i)))
continue;
sm_response = *(__be64 *)&guid_rec->guid_info_list
[i * GUID_REC_SIZE];
required_val = *(__be64 *)&rec->all_recs[i * GUID_REC_SIZE];
if (cb_ctx->method == MLX4_GUID_INFO_RECORD_DELETE) {
if (required_val ==
cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL))
goto next_entry;
/* A new value was set till we got the response */
pr_debug("need to set new value %llx, record num %d, block_num:%d\n",
be64_to_cpu(required_val),
i, guid_rec->block_num);
goto entry_declined;
}
/* check if the SM didn't assign one of the records.
* if it didn't, re-ask for.
*/
if (sm_response == MLX4_NOT_SET_GUID) {
if (rec->guids_retry_schedule[i] == 0)
mlx4_ib_warn(&dev->ib_dev,
"%s:Record num %d in block_num: %d was declined by SM\n",
__func__, i,
guid_rec->block_num);
goto entry_declined;
} else {
/* properly assigned record. */
/* We save the GUID we just got from the SM in the
* admin_guid in order to be persistent, and in the
* request from the sm the process will ask for the same GUID */
if (rec->ownership == MLX4_GUID_SYSADMIN_ASSIGN &&
tmp_cur_ag != *(__be64 *)&rec->all_recs[i * GUID_REC_SIZE]) {
/* the sysadmin assignment failed.*/
mlx4_ib_warn(&dev->ib_dev, "%s: Failed to set"
" admin guid after SysAdmin "
"configuration. "
"Record num %d in block_num:%d "
"was declined by SM, "
"new val(0x%llx) was kept\n",
__func__, i,
guid_rec->block_num,
be64_to_cpu(*(__be64 *) &
rec->all_recs[i * GUID_REC_SIZE]));
if (required_val &&
sm_response != required_val) {
/* Warn only on first retry */
if (rec->guids_retry_schedule[i] == 0)
mlx4_ib_warn(&dev->ib_dev, "%s: Failed to set"
" admin guid after SysAdmin "
"configuration. "
"Record num %d in block_num:%d "
"was declined by SM, "
"new val(0x%llx) was kept, SM returned (0x%llx)\n",
__func__, i,
guid_rec->block_num,
be64_to_cpu(required_val),
be64_to_cpu(sm_response));
goto entry_declined;
} else {
memcpy(&rec->all_recs[i * GUID_REC_SIZE],
&guid_rec->guid_info_list[i * GUID_REC_SIZE],
GUID_REC_SIZE);
*(__be64 *)&rec->all_recs[i * GUID_REC_SIZE] =
sm_response;
if (required_val == 0)
mlx4_set_admin_guid(dev->dev,
sm_response,
(guid_rec->block_num
* NUM_ALIAS_GUID_IN_REC) + i,
cb_ctx->port);
goto next_entry;
}
}
entry_declined:
declined_guid_indexes |= mlx4_ib_get_aguid_comp_mask_from_ix(i);
rec->guids_retry_schedule[i] =
(rec->guids_retry_schedule[i] == 0) ? 1 :
min((unsigned int)60,
rec->guids_retry_schedule[i] * 2);
/* using the minimum value among all entries in that record */
resched_delay_sec = (resched_delay_sec == 0) ?
rec->guids_retry_schedule[i] :
min(resched_delay_sec,
rec->guids_retry_schedule[i]);
continue;
next_entry:
rec->guids_retry_schedule[i] = 0;
}
applied_guid_indexes = cb_ctx->guid_indexes & ~declined_guid_indexes;
if (declined_guid_indexes ||
rec->guid_indexes & ~(applied_guid_indexes)) {
pr_debug("record=%d wasn't fully set, guid_indexes=0x%llx applied_indexes=0x%llx, declined_indexes=0x%llx\n",
guid_rec->block_num,
be64_to_cpu((__force __be64)rec->guid_indexes),
be64_to_cpu((__force __be64)applied_guid_indexes),
be64_to_cpu((__force __be64)declined_guid_indexes));
rec->time_to_run = ktime_get_real_ns() +
resched_delay_sec * NSEC_PER_SEC;
} else {
rec->status = MLX4_GUID_INFO_STATUS_SET;
}
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
/*
The func is call here to close the cases when the
sm doesn't send smp, so in the sa response the driver
@ -297,10 +428,13 @@ static void aliasguid_query_handler(int status,
out:
spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
if (!dev->sriov.is_going_down)
if (!dev->sriov.is_going_down) {
get_low_record_time_index(dev, port_index, &resched_delay_sec);
queue_delayed_work(dev->sriov.alias_guid.ports_guid[port_index].wq,
&dev->sriov.alias_guid.ports_guid[port_index].
alias_guid_work, 0);
alias_guid_work,
msecs_to_jiffies(resched_delay_sec * 1000));
}
if (cb_ctx->sa_query) {
list_del(&cb_ctx->list);
kfree(cb_ctx);
@ -317,9 +451,7 @@ static void invalidate_guid_record(struct mlx4_ib_dev *dev, u8 port, int index)
ib_sa_comp_mask comp_mask = 0;
dev->sriov.alias_guid.ports_guid[port - 1].all_rec_per_port[index].status
= MLX4_GUID_INFO_STATUS_IDLE;
dev->sriov.alias_guid.ports_guid[port - 1].all_rec_per_port[index].method
= MLX4_GUID_INFO_RECORD_SET;
= MLX4_GUID_INFO_STATUS_SET;
/* calculate the comp_mask for that record.*/
for (i = 0; i < NUM_ALIAS_GUID_IN_REC; i++) {
@ -333,19 +465,21 @@ static void invalidate_guid_record(struct mlx4_ib_dev *dev, u8 port, int index)
need to assign GUIDs, then don't put it up for assignment.
*/
if (MLX4_GUID_FOR_DELETE_VAL == cur_admin_val ||
(!index && !i) ||
MLX4_GUID_NONE_ASSIGN == dev->sriov.alias_guid.
ports_guid[port - 1].all_rec_per_port[index].ownership)
(!index && !i))
continue;
comp_mask |= mlx4_ib_get_aguid_comp_mask_from_ix(i);
}
dev->sriov.alias_guid.ports_guid[port - 1].
all_rec_per_port[index].guid_indexes = comp_mask;
all_rec_per_port[index].guid_indexes |= comp_mask;
if (dev->sriov.alias_guid.ports_guid[port - 1].
all_rec_per_port[index].guid_indexes)
dev->sriov.alias_guid.ports_guid[port - 1].
all_rec_per_port[index].status = MLX4_GUID_INFO_STATUS_IDLE;
}
static int set_guid_rec(struct ib_device *ibdev,
u8 port, int index,
struct mlx4_sriov_alias_guid_info_rec_det *rec_det)
struct mlx4_next_alias_guid_work *rec)
{
int err;
struct mlx4_ib_dev *dev = to_mdev(ibdev);
@ -354,6 +488,9 @@ static int set_guid_rec(struct ib_device *ibdev,
struct ib_port_attr attr;
struct mlx4_alias_guid_work_context *callback_context;
unsigned long resched_delay, flags, flags1;
u8 port = rec->port + 1;
int index = rec->block_num;
struct mlx4_sriov_alias_guid_info_rec_det *rec_det = &rec->rec_det;
struct list_head *head =
&dev->sriov.alias_guid.ports_guid[port - 1].cb_list;
@ -380,6 +517,8 @@ static int set_guid_rec(struct ib_device *ibdev,
callback_context->port = port;
callback_context->dev = dev;
callback_context->block_num = index;
callback_context->guid_indexes = rec_det->guid_indexes;
callback_context->method = rec->method;
memset(&guid_info_rec, 0, sizeof (struct ib_sa_guidinfo_rec));
@ -399,7 +538,7 @@ static int set_guid_rec(struct ib_device *ibdev,
callback_context->query_id =
ib_sa_guid_info_rec_query(dev->sriov.alias_guid.sa_client,
ibdev, port, &guid_info_rec,
comp_mask, rec_det->method, 1000,
comp_mask, rec->method, 1000,
GFP_KERNEL, aliasguid_query_handler,
callback_context,
&callback_context->sa_query);
@ -434,6 +573,30 @@ out:
return err;
}
static void mlx4_ib_guid_port_init(struct mlx4_ib_dev *dev, int port)
{
int j, k, entry;
__be64 guid;
/*Check if the SM doesn't need to assign the GUIDs*/
for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
for (k = 0; k < NUM_ALIAS_GUID_IN_REC; k++) {
entry = j * NUM_ALIAS_GUID_IN_REC + k;
/* no request for the 0 entry (hw guid) */
if (!entry || entry > dev->dev->persist->num_vfs ||
!mlx4_is_slave_active(dev->dev, entry))
continue;
guid = mlx4_get_admin_guid(dev->dev, entry, port);
*(__be64 *)&dev->sriov.alias_guid.ports_guid[port - 1].
all_rec_per_port[j].all_recs
[GUID_REC_SIZE * k] = guid;
pr_debug("guid was set, entry=%d, val=0x%llx, port=%d\n",
entry,
be64_to_cpu(guid),
port);
}
}
}
void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port)
{
int i;
@ -443,6 +606,13 @@ void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port)
spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
if (dev->sriov.alias_guid.ports_guid[port - 1].state_flags &
GUID_STATE_NEED_PORT_INIT) {
mlx4_ib_guid_port_init(dev, port);
dev->sriov.alias_guid.ports_guid[port - 1].state_flags &=
(~GUID_STATE_NEED_PORT_INIT);
}
for (i = 0; i < NUM_ALIAS_GUID_REC_IN_PORT; i++)
invalidate_guid_record(dev, port, i);
@ -462,60 +632,107 @@ void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port)
spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags);
}
static void set_required_record(struct mlx4_ib_dev *dev, u8 port,
struct mlx4_next_alias_guid_work *next_rec,
int record_index)
{
int i;
int lowset_time_entry = -1;
int lowest_time = 0;
ib_sa_comp_mask delete_guid_indexes = 0;
ib_sa_comp_mask set_guid_indexes = 0;
struct mlx4_sriov_alias_guid_info_rec_det *rec =
&dev->sriov.alias_guid.ports_guid[port].
all_rec_per_port[record_index];
for (i = 0; i < NUM_ALIAS_GUID_IN_REC; i++) {
if (!(rec->guid_indexes &
mlx4_ib_get_aguid_comp_mask_from_ix(i)))
continue;
if (*(__be64 *)&rec->all_recs[i * GUID_REC_SIZE] ==
cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL))
delete_guid_indexes |=
mlx4_ib_get_aguid_comp_mask_from_ix(i);
else
set_guid_indexes |=
mlx4_ib_get_aguid_comp_mask_from_ix(i);
if (lowset_time_entry == -1 || rec->guids_retry_schedule[i] <=
lowest_time) {
lowset_time_entry = i;
lowest_time = rec->guids_retry_schedule[i];
}
}
memcpy(&next_rec->rec_det, rec, sizeof(*rec));
next_rec->port = port;
next_rec->block_num = record_index;
if (*(__be64 *)&rec->all_recs[lowset_time_entry * GUID_REC_SIZE] ==
cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL)) {
next_rec->rec_det.guid_indexes = delete_guid_indexes;
next_rec->method = MLX4_GUID_INFO_RECORD_DELETE;
} else {
next_rec->rec_det.guid_indexes = set_guid_indexes;
next_rec->method = MLX4_GUID_INFO_RECORD_SET;
}
}
/* return index of record that should be updated based on lowest
* rescheduled time
*/
static int get_low_record_time_index(struct mlx4_ib_dev *dev, u8 port,
int *resched_delay_sec)
{
int record_index = -1;
u64 low_record_time = 0;
struct mlx4_sriov_alias_guid_info_rec_det rec;
int j;
for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
rec = dev->sriov.alias_guid.ports_guid[port].
all_rec_per_port[j];
if (rec.status == MLX4_GUID_INFO_STATUS_IDLE &&
rec.guid_indexes) {
if (record_index == -1 ||
rec.time_to_run < low_record_time) {
record_index = j;
low_record_time = rec.time_to_run;
}
}
}
if (resched_delay_sec) {
u64 curr_time = ktime_get_real_ns();
*resched_delay_sec = (low_record_time < curr_time) ? 0 :
div_u64((low_record_time - curr_time), NSEC_PER_SEC);
}
return record_index;
}
/* The function returns the next record that was
* not configured (or failed to be configured) */
static int get_next_record_to_update(struct mlx4_ib_dev *dev, u8 port,
struct mlx4_next_alias_guid_work *rec)
{
int j;
unsigned long flags;
int record_index;
int ret = 0;
for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
if (dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j].status ==
MLX4_GUID_INFO_STATUS_IDLE) {
memcpy(&rec->rec_det,
&dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j],
sizeof (struct mlx4_sriov_alias_guid_info_rec_det));
rec->port = port;
rec->block_num = j;
dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[j].status =
MLX4_GUID_INFO_STATUS_PENDING;
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
return 0;
}
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags);
record_index = get_low_record_time_index(dev, port, NULL);
if (record_index < 0) {
ret = -ENOENT;
goto out;
}
return -ENOENT;
}
static void set_administratively_guid_record(struct mlx4_ib_dev *dev, int port,
int rec_index,
struct mlx4_sriov_alias_guid_info_rec_det *rec_det)
{
dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].guid_indexes =
rec_det->guid_indexes;
memcpy(dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].all_recs,
rec_det->all_recs, NUM_ALIAS_GUID_IN_REC * GUID_REC_SIZE);
dev->sriov.alias_guid.ports_guid[port].all_rec_per_port[rec_index].status =
rec_det->status;
}
static void set_all_slaves_guids(struct mlx4_ib_dev *dev, int port)
{
int j;
struct mlx4_sriov_alias_guid_info_rec_det rec_det ;
for (j = 0 ; j < NUM_ALIAS_GUID_REC_IN_PORT ; j++) {
memset(rec_det.all_recs, 0, NUM_ALIAS_GUID_IN_REC * GUID_REC_SIZE);
rec_det.guid_indexes = (!j ? 0 : IB_SA_GUIDINFO_REC_GID0) |
IB_SA_GUIDINFO_REC_GID1 | IB_SA_GUIDINFO_REC_GID2 |
IB_SA_GUIDINFO_REC_GID3 | IB_SA_GUIDINFO_REC_GID4 |
IB_SA_GUIDINFO_REC_GID5 | IB_SA_GUIDINFO_REC_GID6 |
IB_SA_GUIDINFO_REC_GID7;
rec_det.status = MLX4_GUID_INFO_STATUS_IDLE;
set_administratively_guid_record(dev, port, j, &rec_det);
}
set_required_record(dev, port, rec, record_index);
out:
spin_unlock_irqrestore(&dev->sriov.alias_guid.ag_work_lock, flags);
return ret;
}
static void alias_guid_work(struct work_struct *work)
@ -545,9 +762,7 @@ static void alias_guid_work(struct work_struct *work)
goto out;
}
set_guid_rec(&dev->ib_dev, rec->port + 1, rec->block_num,
&rec->rec_det);
set_guid_rec(&dev->ib_dev, rec);
out:
kfree(rec);
}
@ -562,6 +777,12 @@ void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port)
spin_lock_irqsave(&dev->sriov.going_down_lock, flags);
spin_lock_irqsave(&dev->sriov.alias_guid.ag_work_lock, flags1);
if (!dev->sriov.is_going_down) {
/* If there is pending one should cancell then run, otherwise
* won't run till previous one is ended as same work
* struct is used.
*/
cancel_delayed_work(&dev->sriov.alias_guid.ports_guid[port].
alias_guid_work);
queue_delayed_work(dev->sriov.alias_guid.ports_guid[port].wq,
&dev->sriov.alias_guid.ports_guid[port].alias_guid_work, 0);
}
@ -609,7 +830,7 @@ int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev)
{
char alias_wq_name[15];
int ret = 0;
int i, j, k;
int i, j;
union ib_gid gid;
if (!mlx4_is_master(dev->dev))
@ -633,33 +854,25 @@ int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev)
for (i = 0 ; i < dev->num_ports; i++) {
memset(&dev->sriov.alias_guid.ports_guid[i], 0,
sizeof (struct mlx4_sriov_alias_guid_port_rec_det));
/*Check if the SM doesn't need to assign the GUIDs*/
dev->sriov.alias_guid.ports_guid[i].state_flags |=
GUID_STATE_NEED_PORT_INIT;
for (j = 0; j < NUM_ALIAS_GUID_REC_IN_PORT; j++) {
if (mlx4_ib_sm_guid_assign) {
dev->sriov.alias_guid.ports_guid[i].
all_rec_per_port[j].
ownership = MLX4_GUID_DRIVER_ASSIGN;
continue;
}
dev->sriov.alias_guid.ports_guid[i].all_rec_per_port[j].
ownership = MLX4_GUID_NONE_ASSIGN;
/*mark each val as it was deleted,
till the sysAdmin will give it valid val*/
for (k = 0; k < NUM_ALIAS_GUID_IN_REC; k++) {
*(__be64 *)&dev->sriov.alias_guid.ports_guid[i].
all_rec_per_port[j].all_recs[GUID_REC_SIZE * k] =
cpu_to_be64(MLX4_GUID_FOR_DELETE_VAL);
}
/* mark each val as it was deleted */
memset(dev->sriov.alias_guid.ports_guid[i].
all_rec_per_port[j].all_recs, 0xFF,
sizeof(dev->sriov.alias_guid.ports_guid[i].
all_rec_per_port[j].all_recs));
}
INIT_LIST_HEAD(&dev->sriov.alias_guid.ports_guid[i].cb_list);
/*prepare the records, set them to be allocated by sm*/
if (mlx4_ib_sm_guid_assign)
for (j = 1; j < NUM_ALIAS_GUID_PER_PORT; j++)
mlx4_set_admin_guid(dev->dev, 0, j, i + 1);
for (j = 0 ; j < NUM_ALIAS_GUID_REC_IN_PORT; j++)
invalidate_guid_record(dev, i + 1, j);
dev->sriov.alias_guid.ports_guid[i].parent = &dev->sriov.alias_guid;
dev->sriov.alias_guid.ports_guid[i].port = i;
if (mlx4_ib_sm_guid_assign)
set_all_slaves_guids(dev, i);
snprintf(alias_wq_name, sizeof alias_wq_name, "alias_guid%d", i);
dev->sriov.alias_guid.ports_guid[i].wq =

9
drivers/infiniband/hw/mlx4/mad.c
View File

@ -1430,6 +1430,10 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
tun_qp->ring[i].addr,
rx_buf_size,
DMA_FROM_DEVICE);
if (ib_dma_mapping_error(ctx->ib_dev, tun_qp->ring[i].map)) {
kfree(tun_qp->ring[i].addr);
goto err;
}
}
for (i = 0; i < MLX4_NUM_TUNNEL_BUFS; i++) {
@ -1442,6 +1446,11 @@ static int mlx4_ib_alloc_pv_bufs(struct mlx4_ib_demux_pv_ctx *ctx,
tun_qp->tx_ring[i].buf.addr,
tx_buf_size,
DMA_TO_DEVICE);
if (ib_dma_mapping_error(ctx->ib_dev,
tun_qp->tx_ring[i].buf.map)) {
kfree(tun_qp->tx_ring[i].buf.addr);
goto tx_err;
}
tun_qp->tx_ring[i].ah = NULL;
}
spin_lock_init(&tun_qp->tx_lock);

26
drivers/infiniband/hw/mlx4/main.c
View File

@ -66,9 +66,9 @@ MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);
int mlx4_ib_sm_guid_assign = 1;
int mlx4_ib_sm_guid_assign = 0;
module_param_named(sm_guid_assign, mlx4_ib_sm_guid_assign, int, 0444);
MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 1)");
MODULE_PARM_DESC(sm_guid_assign, "Enable SM alias_GUID assignment if sm_guid_assign > 0 (Default: 0)");
static const char mlx4_ib_version[] =
DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
@ -2791,9 +2791,31 @@ static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
case MLX4_DEV_EVENT_SLAVE_INIT:
/* here, p is the slave id */
do_slave_init(ibdev, p, 1);
if (mlx4_is_master(dev)) {
int i;
for (i = 1; i <= ibdev->num_ports; i++) {
if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
== IB_LINK_LAYER_INFINIBAND)
mlx4_ib_slave_alias_guid_event(ibdev,
p, i,
1);
}
}
return;
case MLX4_DEV_EVENT_SLAVE_SHUTDOWN:
if (mlx4_is_master(dev)) {
int i;
for (i = 1; i <= ibdev->num_ports; i++) {
if (rdma_port_get_link_layer(&ibdev->ib_dev, i)
== IB_LINK_LAYER_INFINIBAND)
mlx4_ib_slave_alias_guid_event(ibdev,
p, i,
0);
}
}
/* here, p is the slave id */
do_slave_init(ibdev, p, 0);
return;

14
drivers/infiniband/hw/mlx4/mlx4_ib.h
View File

@ -342,14 +342,9 @@ struct mlx4_ib_ah {
enum mlx4_guid_alias_rec_status {
MLX4_GUID_INFO_STATUS_IDLE,
MLX4_GUID_INFO_STATUS_SET,
MLX4_GUID_INFO_STATUS_PENDING,
};
enum mlx4_guid_alias_rec_ownership {
MLX4_GUID_DRIVER_ASSIGN,
MLX4_GUID_SYSADMIN_ASSIGN,
MLX4_GUID_NONE_ASSIGN, /*init state of each record*/
};
#define GUID_STATE_NEED_PORT_INIT 0x01
enum mlx4_guid_alias_rec_method {
MLX4_GUID_INFO_RECORD_SET = IB_MGMT_METHOD_SET,
@ -360,8 +355,8 @@ struct mlx4_sriov_alias_guid_info_rec_det {
u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC];
ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/
enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/
u8 method; /*set or delete*/
enum mlx4_guid_alias_rec_ownership ownership; /*indicates who assign that alias_guid record*/
unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC];
u64 time_to_run;
};
struct mlx4_sriov_alias_guid_port_rec_det {
@ -369,6 +364,7 @@ struct mlx4_sriov_alias_guid_port_rec_det {
struct workqueue_struct *wq;
struct delayed_work alias_guid_work;
u8 port;
u32 state_flags;
struct mlx4_sriov_alias_guid *parent;
struct list_head cb_list;
};
@ -802,6 +798,8 @@ int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
struct attribute *attr);
ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index);
void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave,
int port, int slave_init);
int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ;

7
drivers/infiniband/hw/mlx4/qp.c
View File

@ -566,6 +566,10 @@ static int alloc_proxy_bufs(struct ib_device *dev, struct mlx4_ib_qp *qp)
ib_dma_map_single(dev, qp->sqp_proxy_rcv[i].addr,
sizeof (struct mlx4_ib_proxy_sqp_hdr),
DMA_FROM_DEVICE);
if (ib_dma_mapping_error(dev, qp->sqp_proxy_rcv[i].map)) {
kfree(qp->sqp_proxy_rcv[i].addr);
goto err;
}
}
return 0;
@ -2605,8 +2609,7 @@ static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr,
memcpy(wqe->header, wr->wr.ud.header, wr->wr.ud.hlen);
*lso_hdr_sz = cpu_to_be32((wr->wr.ud.mss - wr->wr.ud.hlen) << 16 |
wr->wr.ud.hlen);
*lso_hdr_sz = cpu_to_be32(wr->wr.ud.mss << 16 | wr->wr.ud.hlen);
*lso_seg_len = halign;
return 0;
}

44
drivers/infiniband/hw/mlx4/sysfs.c
View File

@ -46,21 +46,17 @@
static ssize_t show_admin_alias_guid(struct device *dev,
struct device_attribute *attr, char *buf)
{
int record_num;/*0-15*/
int guid_index_in_rec; /*0 - 7*/
struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry =
container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry);
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
__be64 sysadmin_ag_val;
record_num = mlx4_ib_iov_dentry->entry_num / 8 ;
guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8 ;
sysadmin_ag_val = mlx4_get_admin_guid(mdev->dev,
mlx4_ib_iov_dentry->entry_num,
port->num);
return sprintf(buf, "%llx\n",
be64_to_cpu(*(__be64 *)&mdev->sriov.alias_guid.
ports_guid[port->num - 1].
all_rec_per_port[record_num].
all_recs[8 * guid_index_in_rec]));
return sprintf(buf, "%llx\n", be64_to_cpu(sysadmin_ag_val));
}
/* store_admin_alias_guid stores the (new) administratively assigned value of that GUID.
@ -80,6 +76,7 @@ static ssize_t store_admin_alias_guid(struct device *dev,
struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx;
struct mlx4_ib_dev *mdev = port->dev;
u64 sysadmin_ag_val;
unsigned long flags;
record_num = mlx4_ib_iov_dentry->entry_num / 8;
guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8;
@ -87,6 +84,7 @@ static ssize_t store_admin_alias_guid(struct device *dev,
pr_err("GUID 0 block 0 is RO\n");
return count;
}
spin_lock_irqsave(&mdev->sriov.alias_guid.ag_work_lock, flags);
sscanf(buf, "%llx", &sysadmin_ag_val);
*(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1].
all_rec_per_port[record_num].
@ -96,33 +94,15 @@ static ssize_t store_admin_alias_guid(struct device *dev,
/* Change the state to be pending for update */
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status
= MLX4_GUID_INFO_STATUS_IDLE ;
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method
= MLX4_GUID_INFO_RECORD_SET;
switch (sysadmin_ag_val) {
case MLX4_GUID_FOR_DELETE_VAL:
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method
= MLX4_GUID_INFO_RECORD_DELETE;
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
= MLX4_GUID_SYSADMIN_ASSIGN;
break;
/* The sysadmin requests the SM to re-assign */
case MLX4_NOT_SET_GUID:
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
= MLX4_GUID_DRIVER_ASSIGN;
break;
/* The sysadmin requests a specific value.*/
default:
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership
= MLX4_GUID_SYSADMIN_ASSIGN;
break;
}
mlx4_set_admin_guid(mdev->dev, cpu_to_be64(sysadmin_ag_val),
mlx4_ib_iov_dentry->entry_num,
port->num);
/* set the record index */
mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes
= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec);
|= mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec);
spin_unlock_irqrestore(&mdev->sriov.alias_guid.ag_work_lock, flags);
mlx4_ib_init_alias_guid_work(mdev, port->num - 1);
return count;

31
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -87,7 +87,6 @@ enum {
IPOIB_FLAG_ADMIN_UP = 2,
IPOIB_PKEY_ASSIGNED = 3,
IPOIB_FLAG_SUBINTERFACE = 5,
IPOIB_MCAST_RUN = 6,
IPOIB_STOP_REAPER = 7,
IPOIB_FLAG_ADMIN_CM = 9,
IPOIB_FLAG_UMCAST = 10,
@ -98,9 +97,15 @@ enum {
IPOIB_MCAST_FLAG_FOUND = 0, /* used in set_multicast_list */
IPOIB_MCAST_FLAG_SENDONLY = 1,
IPOIB_MCAST_FLAG_BUSY = 2, /* joining or already joined */
/*
* For IPOIB_MCAST_FLAG_BUSY
* When set, in flight join and mcast->mc is unreliable
* When clear and mcast->mc IS_ERR_OR_NULL, need to restart or
* haven't started yet
* When clear and mcast->mc is valid pointer, join was successful
*/
IPOIB_MCAST_FLAG_BUSY = 2,
IPOIB_MCAST_FLAG_ATTACHED = 3,
IPOIB_MCAST_JOIN_STARTED = 4,
MAX_SEND_CQE = 16,
IPOIB_CM_COPYBREAK = 256,
@ -148,6 +153,7 @@ struct ipoib_mcast {
unsigned long created;
unsigned long backoff;
unsigned long delay_until;
unsigned long flags;
unsigned char logcount;
@ -292,6 +298,11 @@ struct ipoib_neigh_table {
struct completion deleted;
};
struct ipoib_qp_state_validate {
struct work_struct work;
struct ipoib_dev_priv *priv;
};
/*
* Device private locking: network stack tx_lock protects members used
* in TX fast path, lock protects everything else. lock nests inside
@ -317,6 +328,7 @@ struct ipoib_dev_priv {
struct list_head multicast_list;
struct rb_root multicast_tree;
struct workqueue_struct *wq;
struct delayed_work mcast_task;
struct work_struct carrier_on_task;
struct work_struct flush_light;
@ -426,11 +438,6 @@ struct ipoib_neigh {
#define IPOIB_UD_MTU(ib_mtu) (ib_mtu - IPOIB_ENCAP_LEN)
#define IPOIB_UD_BUF_SIZE(ib_mtu) (ib_mtu + IB_GRH_BYTES)
static inline int ipoib_ud_need_sg(unsigned int ib_mtu)
{
return IPOIB_UD_BUF_SIZE(ib_mtu) > PAGE_SIZE;
}
void ipoib_neigh_dtor(struct ipoib_neigh *neigh);
static inline void ipoib_neigh_put(struct ipoib_neigh *neigh)
{
@ -477,10 +484,10 @@ void ipoib_ib_dev_flush_heavy(struct work_struct *work);
void ipoib_pkey_event(struct work_struct *work);
void ipoib_ib_dev_cleanup(struct net_device *dev);
int ipoib_ib_dev_open(struct net_device *dev, int flush);
int ipoib_ib_dev_open(struct net_device *dev);
int ipoib_ib_dev_up(struct net_device *dev);
int ipoib_ib_dev_down(struct net_device *dev, int flush);
int ipoib_ib_dev_stop(struct net_device *dev, int flush);
int ipoib_ib_dev_down(struct net_device *dev);
int ipoib_ib_dev_stop(struct net_device *dev);
void ipoib_pkey_dev_check_presence(struct net_device *dev);
int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port);
@ -492,7 +499,7 @@ void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb);
void ipoib_mcast_restart_task(struct work_struct *work);
int ipoib_mcast_start_thread(struct net_device *dev);
int ipoib_mcast_stop_thread(struct net_device *dev, int flush);
int ipoib_mcast_stop_thread(struct net_device *dev);
void ipoib_mcast_dev_down(struct net_device *dev);
void ipoib_mcast_dev_flush(struct net_device *dev);

18
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -474,7 +474,7 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *even
}
spin_lock_irq(&priv->lock);
queue_delayed_work(ipoib_workqueue,
queue_delayed_work(priv->wq,
&priv->cm.stale_task, IPOIB_CM_RX_DELAY);
/* Add this entry to passive ids list head, but do not re-add it
* if IB_EVENT_QP_LAST_WQE_REACHED has moved it to flush list. */
@ -576,7 +576,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
spin_lock_irqsave(&priv->lock, flags);
list_splice_init(&priv->cm.rx_drain_list, &priv->cm.rx_reap_list);
ipoib_cm_start_rx_drain(priv);
queue_work(ipoib_workqueue, &priv->cm.rx_reap_task);
queue_work(priv->wq, &priv->cm.rx_reap_task);
spin_unlock_irqrestore(&priv->lock, flags);
} else
ipoib_warn(priv, "cm recv completion event with wrid %d (> %d)\n",
@ -603,7 +603,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
spin_lock_irqsave(&priv->lock, flags);
list_move(&p->list, &priv->cm.rx_reap_list);
spin_unlock_irqrestore(&priv->lock, flags);
queue_work(ipoib_workqueue, &priv->cm.rx_reap_task);
queue_work(priv->wq, &priv->cm.rx_reap_task);
}
return;
}
@ -827,7 +827,7 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &tx->flags)) {
list_move(&tx->list, &priv->cm.reap_list);
queue_work(ipoib_workqueue, &priv->cm.reap_task);
queue_work(priv->wq, &priv->cm.reap_task);
}
clear_bit(IPOIB_FLAG_OPER_UP, &tx->flags);
@ -1255,7 +1255,7 @@ static int ipoib_cm_tx_handler(struct ib_cm_id *cm_id,
if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &tx->flags)) {
list_move(&tx->list, &priv->cm.reap_list);
queue_work(ipoib_workqueue, &priv->cm.reap_task);
queue_work(priv->wq, &priv->cm.reap_task);
}
spin_unlock_irqrestore(&priv->lock, flags);
@ -1284,7 +1284,7 @@ struct ipoib_cm_tx *ipoib_cm_create_tx(struct net_device *dev, struct ipoib_path
tx->dev = dev;
list_add(&tx->list, &priv->cm.start_list);
set_bit(IPOIB_FLAG_INITIALIZED, &tx->flags);
queue_work(ipoib_workqueue, &priv->cm.start_task);
queue_work(priv->wq, &priv->cm.start_task);
return tx;
}
@ -1295,7 +1295,7 @@ void ipoib_cm_destroy_tx(struct ipoib_cm_tx *tx)
if (test_and_clear_bit(IPOIB_FLAG_INITIALIZED, &tx->flags)) {
spin_lock_irqsave(&priv->lock, flags);
list_move(&tx->list, &priv->cm.reap_list);
queue_work(ipoib_workqueue, &priv->cm.reap_task);
queue_work(priv->wq, &priv->cm.reap_task);
ipoib_dbg(priv, "Reap connection for gid %pI6\n",
tx->neigh->daddr + 4);
tx->neigh = NULL;
@ -1417,7 +1417,7 @@ void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb,
skb_queue_tail(&priv->cm.skb_queue, skb);
if (e)
queue_work(ipoib_workqueue, &priv->cm.skb_task);
queue_work(priv->wq, &priv->cm.skb_task);
}
static void ipoib_cm_rx_reap(struct work_struct *work)
@ -1450,7 +1450,7 @@ static void ipoib_cm_stale_task(struct work_struct *work)
}
if (!list_empty(&priv->cm.passive_ids))
queue_delayed_work(ipoib_workqueue,
queue_delayed_work(priv->wq,
&priv->cm.stale_task, IPOIB_CM_RX_DELAY);
spin_unlock_irq(&priv->lock);
}

195
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View File

@ -94,39 +94,9 @@ void ipoib_free_ah(struct kref *kref)
static void ipoib_ud_dma_unmap_rx(struct ipoib_dev_priv *priv,
u64 mapping[IPOIB_UD_RX_SG])
{
if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
ib_dma_unmap_single(priv->ca, mapping[0], IPOIB_UD_HEAD_SIZE,
DMA_FROM_DEVICE);
ib_dma_unmap_page(priv->ca, mapping[1], PAGE_SIZE,
DMA_FROM_DEVICE);
} else
ib_dma_unmap_single(priv->ca, mapping[0],
IPOIB_UD_BUF_SIZE(priv->max_ib_mtu),
DMA_FROM_DEVICE);
}
static void ipoib_ud_skb_put_frags(struct ipoib_dev_priv *priv,
struct sk_buff *skb,
unsigned int length)
{
if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
skb_frag_t *frag = &skb_shinfo(skb)->frags[0];
unsigned int size;
/*
* There is only two buffers needed for max_payload = 4K,
* first buf size is IPOIB_UD_HEAD_SIZE
*/
skb->tail += IPOIB_UD_HEAD_SIZE;
skb->len += length;
size = length - IPOIB_UD_HEAD_SIZE;
skb_frag_size_set(frag, size);
skb->data_len += size;
skb->truesize += PAGE_SIZE;
} else
skb_put(skb, length);
ib_dma_unmap_single(priv->ca, mapping[0],
IPOIB_UD_BUF_SIZE(priv->max_ib_mtu),
DMA_FROM_DEVICE);
}
static int ipoib_ib_post_receive(struct net_device *dev, int id)
@ -156,18 +126,11 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct sk_buff *skb;
int buf_size;
int tailroom;
u64 *mapping;
if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
buf_size = IPOIB_UD_HEAD_SIZE;
tailroom = 128; /* reserve some tailroom for IP/TCP headers */
} else {
buf_size = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
tailroom = 0;
}
buf_size = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
skb = dev_alloc_skb(buf_size + tailroom + 4);
skb = dev_alloc_skb(buf_size + IPOIB_ENCAP_LEN);
if (unlikely(!skb))
return NULL;
@ -184,23 +147,8 @@ static struct sk_buff *ipoib_alloc_rx_skb(struct net_device *dev, int id)
if (unlikely(ib_dma_mapping_error(priv->ca, mapping[0])))
goto error;
if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
struct page *page = alloc_page(GFP_ATOMIC);
if (!page)
goto partial_error;
skb_fill_page_desc(skb, 0, page, 0, PAGE_SIZE);
mapping[1] =
ib_dma_map_page(priv->ca, page,
0, PAGE_SIZE, DMA_FROM_DEVICE);
if (unlikely(ib_dma_mapping_error(priv->ca, mapping[1])))
goto partial_error;
}
priv->rx_ring[id].skb = skb;
return skb;
partial_error:
ib_dma_unmap_single(priv->ca, mapping[0], buf_size, DMA_FROM_DEVICE);
error:
dev_kfree_skb_any(skb);
return NULL;
@ -278,7 +226,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
wc->byte_len, wc->slid);
ipoib_ud_dma_unmap_rx(priv, mapping);
ipoib_ud_skb_put_frags(priv, skb, wc->byte_len);
skb_put(skb, wc->byte_len);
/* First byte of dgid signals multicast when 0xff */
dgid = &((struct ib_grh *)skb->data)->dgid;
@ -296,6 +245,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
skb_reset_mac_header(skb);
skb_pull(skb, IPOIB_ENCAP_LEN);
skb->truesize = SKB_TRUESIZE(skb->len);
++dev->stats.rx_packets;
dev->stats.rx_bytes += skb->len;
@ -376,6 +327,51 @@ static void ipoib_dma_unmap_tx(struct ib_device *ca,
}
}
/*
* As the result of a completion error the QP Can be transferred to SQE states.
* The function checks if the (send)QP is in SQE state and
* moves it back to RTS state, that in order to have it functional again.
*/
static void ipoib_qp_state_validate_work(struct work_struct *work)
{
struct ipoib_qp_state_validate *qp_work =
container_of(work, struct ipoib_qp_state_validate, work);
struct ipoib_dev_priv *priv = qp_work->priv;
struct ib_qp_attr qp_attr;
struct ib_qp_init_attr query_init_attr;
int ret;
ret = ib_query_qp(priv->qp, &qp_attr, IB_QP_STATE, &query_init_attr);
if (ret) {
ipoib_warn(priv, "%s: Failed to query QP ret: %d\n",
__func__, ret);
goto free_res;
}
pr_info("%s: QP: 0x%x is in state: %d\n",
__func__, priv->qp->qp_num, qp_attr.qp_state);
/* currently support only in SQE->RTS transition*/
if (qp_attr.qp_state == IB_QPS_SQE) {
qp_attr.qp_state = IB_QPS_RTS;
ret = ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE);
if (ret) {
pr_warn("failed(%d) modify QP:0x%x SQE->RTS\n",
ret, priv->qp->qp_num);
goto free_res;
}
pr_info("%s: QP: 0x%x moved from IB_QPS_SQE to IB_QPS_RTS\n",
__func__, priv->qp->qp_num);
} else {
pr_warn("QP (%d) will stay in state: %d\n",
priv->qp->qp_num, qp_attr.qp_state);
}
free_res:
kfree(qp_work);
}
static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@ -407,10 +403,22 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
netif_wake_queue(dev);
if (wc->status != IB_WC_SUCCESS &&
wc->status != IB_WC_WR_FLUSH_ERR)
wc->status != IB_WC_WR_FLUSH_ERR) {
struct ipoib_qp_state_validate *qp_work;
ipoib_warn(priv, "failed send event "
"(status=%d, wrid=%d vend_err %x)\n",
wc->status, wr_id, wc->vendor_err);
qp_work = kzalloc(sizeof(*qp_work), GFP_ATOMIC);
if (!qp_work) {
ipoib_warn(priv, "%s Failed alloc ipoib_qp_state_validate for qp: 0x%x\n",
__func__, priv->qp->qp_num);
return;
}
INIT_WORK(&qp_work->work, ipoib_qp_state_validate_work);
qp_work->priv = priv;
queue_work(priv->wq, &qp_work->work);
}
}
static int poll_tx(struct ipoib_dev_priv *priv)
@ -655,16 +663,33 @@ void ipoib_reap_ah(struct work_struct *work)
__ipoib_reap_ah(dev);
if (!test_bit(IPOIB_STOP_REAPER, &priv->flags))
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task,
queue_delayed_work(priv->wq, &priv->ah_reap_task,
round_jiffies_relative(HZ));
}
static void ipoib_flush_ah(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
cancel_delayed_work(&priv->ah_reap_task);
flush_workqueue(priv->wq);
ipoib_reap_ah(&priv->ah_reap_task.work);
}
static void ipoib_stop_ah(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
set_bit(IPOIB_STOP_REAPER, &priv->flags);
ipoib_flush_ah(dev);
}
static void ipoib_ib_tx_timer_func(unsigned long ctx)
{
drain_tx_cq((struct net_device *)ctx);
}
int ipoib_ib_dev_open(struct net_device *dev, int flush)
int ipoib_ib_dev_open(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
int ret;
@ -696,7 +721,7 @@ int ipoib_ib_dev_open(struct net_device *dev, int flush)
}
clear_bit(IPOIB_STOP_REAPER, &priv->flags);
queue_delayed_work(ipoib_workqueue, &priv->ah_reap_task,
queue_delayed_work(priv->wq, &priv->ah_reap_task,
round_jiffies_relative(HZ));
if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
@ -706,7 +731,7 @@ int ipoib_ib_dev_open(struct net_device *dev, int flush)
dev_stop:
if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
napi_enable(&priv->napi);
ipoib_ib_dev_stop(dev, flush);
ipoib_ib_dev_stop(dev);
return -1;
}
@ -738,7 +763,7 @@ int ipoib_ib_dev_up(struct net_device *dev)
return ipoib_mcast_start_thread(dev);
}
int ipoib_ib_dev_down(struct net_device *dev, int flush)
int ipoib_ib_dev_down(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
@ -747,7 +772,7 @@ int ipoib_ib_dev_down(struct net_device *dev, int flush)
clear_bit(IPOIB_FLAG_OPER_UP, &priv->flags);
netif_carrier_off(dev);
ipoib_mcast_stop_thread(dev, flush);
ipoib_mcast_stop_thread(dev);
ipoib_mcast_dev_flush(dev);
ipoib_flush_paths(dev);
@ -807,7 +832,7 @@ void ipoib_drain_cq(struct net_device *dev)
local_bh_enable();
}
int ipoib_ib_dev_stop(struct net_device *dev, int flush)
int ipoib_ib_dev_stop(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_qp_attr qp_attr;
@ -877,24 +902,7 @@ timeout:
if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
ipoib_warn(priv, "Failed to modify QP to RESET state\n");
/* Wait for all AHs to be reaped */
set_bit(IPOIB_STOP_REAPER, &priv->flags);
cancel_delayed_work(&priv->ah_reap_task);
if (flush)
flush_workqueue(ipoib_workqueue);
begin = jiffies;
while (!list_empty(&priv->dead_ahs)) {
__ipoib_reap_ah(dev);
if (time_after(jiffies, begin + HZ)) {
ipoib_warn(priv, "timing out; will leak address handles\n");
break;
}
msleep(1);
}
ipoib_flush_ah(dev);
ib_req_notify_cq(priv->recv_cq, IB_CQ_NEXT_COMP);
@ -918,7 +926,7 @@ int ipoib_ib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
(unsigned long) dev);
if (dev->flags & IFF_UP) {
if (ipoib_ib_dev_open(dev, 1)) {
if (ipoib_ib_dev_open(dev)) {
ipoib_transport_dev_cleanup(dev);
return -ENODEV;
}
@ -1037,15 +1045,16 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
if (level == IPOIB_FLUSH_LIGHT) {
ipoib_mark_paths_invalid(dev);
ipoib_mcast_dev_flush(dev);
ipoib_flush_ah(dev);
}
if (level >= IPOIB_FLUSH_NORMAL)
ipoib_ib_dev_down(dev, 0);
ipoib_ib_dev_down(dev);
if (level == IPOIB_FLUSH_HEAVY) {
if (test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
ipoib_ib_dev_stop(dev, 0);
if (ipoib_ib_dev_open(dev, 0) != 0)
ipoib_ib_dev_stop(dev);
if (ipoib_ib_dev_open(dev) != 0)
return;
if (netif_queue_stopped(dev))
netif_start_queue(dev);
@ -1097,9 +1106,17 @@ void ipoib_ib_dev_cleanup(struct net_device *dev)
*/
ipoib_flush_paths(dev);
ipoib_mcast_stop_thread(dev, 1);
ipoib_mcast_stop_thread(dev);
ipoib_mcast_dev_flush(dev);
/*
* All of our ah references aren't free until after
* ipoib_mcast_dev_flush(), ipoib_flush_paths, and
* the neighbor garbage collection is stopped and reaped.
* That should all be done now, so make a final ah flush.
*/
ipoib_stop_ah(dev);
ipoib_transport_dev_cleanup(dev);
}

73
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -108,7 +108,7 @@ int ipoib_open(struct net_device *dev)
set_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
if (ipoib_ib_dev_open(dev, 1)) {
if (ipoib_ib_dev_open(dev)) {
if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags))
return 0;
goto err_disable;
@ -139,7 +139,7 @@ int ipoib_open(struct net_device *dev)
return 0;
err_stop:
ipoib_ib_dev_stop(dev, 1);
ipoib_ib_dev_stop(dev);
err_disable:
clear_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags);
@ -157,8 +157,8 @@ static int ipoib_stop(struct net_device *dev)
netif_stop_queue(dev);
ipoib_ib_dev_down(dev, 1);
ipoib_ib_dev_stop(dev, 0);
ipoib_ib_dev_down(dev);
ipoib_ib_dev_stop(dev);
if (!test_bit(IPOIB_FLAG_SUBINTERFACE, &priv->flags)) {
struct ipoib_dev_priv *cpriv;
@ -640,8 +640,10 @@ static void neigh_add_path(struct sk_buff *skb, u8 *daddr,
if (!path->query && path_rec_start(dev, path))
goto err_path;
__skb_queue_tail(&neigh->queue, skb);
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE)
__skb_queue_tail(&neigh->queue, skb);
else
goto err_drop;
}
spin_unlock_irqrestore(&priv->lock, flags);
@ -676,7 +678,12 @@ static void unicast_arp_send(struct sk_buff *skb, struct net_device *dev,
new_path = 1;
}
if (path) {
__skb_queue_tail(&path->queue, skb);
if (skb_queue_len(&path->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
__skb_queue_tail(&path->queue, skb);
} else {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
}
if (!path->query && path_rec_start(dev, path)) {
spin_unlock_irqrestore(&priv->lock, flags);
@ -839,7 +846,7 @@ static void ipoib_set_mcast_list(struct net_device *dev)
return;
}
queue_work(ipoib_workqueue, &priv->restart_task);
queue_work(priv->wq, &priv->restart_task);
}
static int ipoib_get_iflink(const struct net_device *dev)
@ -966,7 +973,7 @@ static void ipoib_reap_neigh(struct work_struct *work)
__ipoib_reap_neigh(priv);
if (!test_bit(IPOIB_STOP_NEIGH_GC, &priv->flags))
queue_delayed_work(ipoib_workqueue, &priv->neigh_reap_task,
queue_delayed_work(priv->wq, &priv->neigh_reap_task,
arp_tbl.gc_interval);
}
@ -1145,7 +1152,7 @@ static int ipoib_neigh_hash_init(struct ipoib_dev_priv *priv)
/* start garbage collection */
clear_bit(IPOIB_STOP_NEIGH_GC, &priv->flags);
queue_delayed_work(ipoib_workqueue, &priv->neigh_reap_task,
queue_delayed_work(priv->wq, &priv->neigh_reap_task,
arp_tbl.gc_interval);
return 0;
@ -1274,15 +1281,13 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
if (ipoib_neigh_hash_init(priv) < 0)
goto out;
/* Allocate RX/TX "rings" to hold queued skbs */
priv->rx_ring = kzalloc(ipoib_recvq_size * sizeof *priv->rx_ring,
GFP_KERNEL);
if (!priv->rx_ring) {
printk(KERN_WARNING "%s: failed to allocate RX ring (%d entries)\n",
ca->name, ipoib_recvq_size);
goto out_neigh_hash_cleanup;
goto out;
}
priv->tx_ring = vzalloc(ipoib_sendq_size * sizeof *priv->tx_ring);
@ -1297,16 +1302,24 @@ int ipoib_dev_init(struct net_device *dev, struct ib_device *ca, int port)
if (ipoib_ib_dev_init(dev, ca, port))
goto out_tx_ring_cleanup;
/*
* Must be after ipoib_ib_dev_init so we can allocate a per
* device wq there and use it here
*/
if (ipoib_neigh_hash_init(priv) < 0)
goto out_dev_uninit;
return 0;
out_dev_uninit:
ipoib_ib_dev_cleanup(dev);
out_tx_ring_cleanup:
vfree(priv->tx_ring);
out_rx_ring_cleanup:
kfree(priv->rx_ring);
out_neigh_hash_cleanup:
ipoib_neigh_hash_uninit(dev);
out:
return -ENOMEM;
}
@ -1329,6 +1342,12 @@ void ipoib_dev_cleanup(struct net_device *dev)
}
unregister_netdevice_many(&head);
/*
* Must be before ipoib_ib_dev_cleanup or we delete an in use
* work queue
*/
ipoib_neigh_hash_uninit(dev);
ipoib_ib_dev_cleanup(dev);
kfree(priv->rx_ring);
@ -1336,8 +1355,6 @@ void ipoib_dev_cleanup(struct net_device *dev)
priv->rx_ring = NULL;
priv->tx_ring = NULL;
ipoib_neigh_hash_uninit(dev);
}
static const struct header_ops ipoib_header_ops = {
@ -1646,10 +1663,11 @@ sysfs_failed:
register_failed:
ib_unregister_event_handler(&priv->event_handler);
flush_workqueue(ipoib_workqueue);
/* Stop GC if started before flush */
set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags);
cancel_delayed_work(&priv->neigh_reap_task);
flush_workqueue(ipoib_workqueue);
flush_workqueue(priv->wq);
event_failed:
ipoib_dev_cleanup(priv->dev);
@ -1712,6 +1730,7 @@ static void ipoib_remove_one(struct ib_device *device)
list_for_each_entry_safe(priv, tmp, dev_list, list) {
ib_unregister_event_handler(&priv->event_handler);
flush_workqueue(ipoib_workqueue);
rtnl_lock();
dev_change_flags(priv->dev, priv->dev->flags & ~IFF_UP);
@ -1720,7 +1739,7 @@ static void ipoib_remove_one(struct ib_device *device)
/* Stop GC */
set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags);
cancel_delayed_work(&priv->neigh_reap_task);
flush_workqueue(ipoib_workqueue);
flush_workqueue(priv->wq);
unregister_netdev(priv->dev);
free_netdev(priv->dev);
@ -1755,14 +1774,16 @@ static int __init ipoib_init_module(void)
return ret;
/*
* We create our own workqueue mainly because we want to be
* able to flush it when devices are being removed. We can't
* use schedule_work()/flush_scheduled_work() because both
* unregister_netdev() and linkwatch_event take the rtnl lock,
* so flush_scheduled_work() can deadlock during device
* removal.
* We create a global workqueue here that is used for all flush
* operations. However, if you attempt to flush a workqueue
* from a task on that same workqueue, it deadlocks the system.
* We want to be able to flush the tasks associated with a
* specific net device, so we also create a workqueue for each
* netdevice. We queue up the tasks for that device only on
* its private workqueue, and we only queue up flush events
* on our global flush workqueue. This avoids the deadlocks.
*/
ipoib_workqueue = create_singlethread_workqueue("ipoib");
ipoib_workqueue = create_singlethread_workqueue("ipoib_flush");
if (!ipoib_workqueue) {
ret = -ENOMEM;
goto err_fs;

528
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -55,8 +55,6 @@ MODULE_PARM_DESC(mcast_debug_level,
"Enable multicast debug tracing if > 0");
#endif
static DEFINE_MUTEX(mcast_mutex);
struct ipoib_mcast_iter {
struct net_device *dev;
union ib_gid mgid;
@ -66,6 +64,48 @@ struct ipoib_mcast_iter {
unsigned int send_only;
};
/*
* This should be called with the priv->lock held
*/
static void __ipoib_mcast_schedule_join_thread(struct ipoib_dev_priv *priv,
struct ipoib_mcast *mcast,
bool delay)
{
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
return;
/*
* We will be scheduling *something*, so cancel whatever is
* currently scheduled first
*/
cancel_delayed_work(&priv->mcast_task);
if (mcast && delay) {
/*
* We had a failure and want to schedule a retry later
*/
mcast->backoff *= 2;
if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS)
mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS;
mcast->delay_until = jiffies + (mcast->backoff * HZ);
/*
* Mark this mcast for its delay, but restart the
* task immediately. The join task will make sure to
* clear out all entries without delays, and then
* schedule itself to run again when the earliest
* delay expires
*/
queue_delayed_work(priv->wq, &priv->mcast_task, 0);
} else if (delay) {
/*
* Special case of retrying after a failure to
* allocate the broadcast multicast group, wait
* 1 second and try again
*/
queue_delayed_work(priv->wq, &priv->mcast_task, HZ);
} else
queue_delayed_work(priv->wq, &priv->mcast_task, 0);
}
static void ipoib_mcast_free(struct ipoib_mcast *mcast)
{
struct net_device *dev = mcast->dev;
@ -103,6 +143,7 @@ static struct ipoib_mcast *ipoib_mcast_alloc(struct net_device *dev,
mcast->dev = dev;
mcast->created = jiffies;
mcast->delay_until = jiffies;
mcast->backoff = 1;
INIT_LIST_HEAD(&mcast->list);
@ -185,17 +226,27 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
spin_unlock_irq(&priv->lock);
return -EAGAIN;
}
priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
/*update priv member according to the new mcast*/
priv->broadcast->mcmember.qkey = mcmember->qkey;
priv->broadcast->mcmember.mtu = mcmember->mtu;
priv->broadcast->mcmember.traffic_class = mcmember->traffic_class;
priv->broadcast->mcmember.rate = mcmember->rate;
priv->broadcast->mcmember.sl = mcmember->sl;
priv->broadcast->mcmember.flow_label = mcmember->flow_label;
priv->broadcast->mcmember.hop_limit = mcmember->hop_limit;
/* assume if the admin and the mcast are the same both can be changed */
if (priv->mcast_mtu == priv->admin_mtu)
priv->admin_mtu =
priv->mcast_mtu =
IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
else
priv->mcast_mtu =
IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu));
priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey);
spin_unlock_irq(&priv->lock);
priv->tx_wr.wr.ud.remote_qkey = priv->qkey;
set_qkey = 1;
if (!ipoib_cm_admin_enabled(dev)) {
rtnl_lock();
dev_set_mtu(dev, min(priv->mcast_mtu, priv->admin_mtu));
rtnl_unlock();
}
}
if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) {
@ -270,107 +321,35 @@ static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast,
return 0;
}
static int
ipoib_mcast_sendonly_join_complete(int status,
struct ib_sa_multicast *multicast)
{
struct ipoib_mcast *mcast = multicast->context;
struct net_device *dev = mcast->dev;
/* We trap for port events ourselves. */
if (status == -ENETRESET)
return 0;
if (!status)
status = ipoib_mcast_join_finish(mcast, &multicast->rec);
if (status) {
if (mcast->logcount++ < 20)
ipoib_dbg_mcast(netdev_priv(dev), "multicast join failed for %pI6, status %d\n",
mcast->mcmember.mgid.raw, status);
/* Flush out any queued packets */
netif_tx_lock_bh(dev);
while (!skb_queue_empty(&mcast->pkt_queue)) {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue));
}
netif_tx_unlock_bh(dev);
/* Clear the busy flag so we try again */
status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY,
&mcast->flags);
}
return status;
}
static int ipoib_mcast_sendonly_join(struct ipoib_mcast *mcast)
{
struct net_device *dev = mcast->dev;
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_sa_mcmember_rec rec = {
#if 0 /* Some SMs don't support send-only yet */
.join_state = 4
#else
.join_state = 1
#endif
};
int ret = 0;
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) {
ipoib_dbg_mcast(priv, "device shutting down, no multicast joins\n");
return -ENODEV;
}
if (test_and_set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) {
ipoib_dbg_mcast(priv, "multicast entry busy, skipping\n");
return -EBUSY;
}
rec.mgid = mcast->mcmember.mgid;
rec.port_gid = priv->local_gid;
rec.pkey = cpu_to_be16(priv->pkey);
mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca,
priv->port, &rec,
IB_SA_MCMEMBER_REC_MGID |
IB_SA_MCMEMBER_REC_PORT_GID |
IB_SA_MCMEMBER_REC_PKEY |
IB_SA_MCMEMBER_REC_JOIN_STATE,
GFP_ATOMIC,
ipoib_mcast_sendonly_join_complete,
mcast);
if (IS_ERR(mcast->mc)) {
ret = PTR_ERR(mcast->mc);
clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
ipoib_warn(priv, "ib_sa_join_multicast failed (ret = %d)\n",
ret);
} else {
ipoib_dbg_mcast(priv, "no multicast record for %pI6, starting join\n",
mcast->mcmember.mgid.raw);
}
return ret;
}
void ipoib_mcast_carrier_on_task(struct work_struct *work)
{
struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv,
carrier_on_task);
struct ib_port_attr attr;
/*
* Take rtnl_lock to avoid racing with ipoib_stop() and
* turning the carrier back on while a device is being
* removed.
*/
if (ib_query_port(priv->ca, priv->port, &attr) ||
attr.state != IB_PORT_ACTIVE) {
ipoib_dbg(priv, "Keeping carrier off until IB port is active\n");
return;
}
rtnl_lock();
/*
* Take rtnl_lock to avoid racing with ipoib_stop() and
* turning the carrier back on while a device is being
* removed. However, ipoib_stop() will attempt to flush
* the workqueue while holding the rtnl lock, so loop
* on trylock until either we get the lock or we see
* FLAG_OPER_UP go away as that signals that we are bailing
* and can safely ignore the carrier on work.
*/
while (!rtnl_trylock()) {
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
return;
else
msleep(20);
}
if (!ipoib_cm_admin_enabled(priv->dev))
dev_set_mtu(priv->dev, min(priv->mcast_mtu, priv->admin_mtu));
netif_carrier_on(priv->dev);
rtnl_unlock();
}
@ -382,7 +361,9 @@ static int ipoib_mcast_join_complete(int status,
struct net_device *dev = mcast->dev;
struct ipoib_dev_priv *priv = netdev_priv(dev);
ipoib_dbg_mcast(priv, "join completion for %pI6 (status %d)\n",
ipoib_dbg_mcast(priv, "%sjoin completion for %pI6 (status %d)\n",
test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) ?
"sendonly " : "",
mcast->mcmember.mgid.raw, status);
/* We trap for port events ourselves. */
@ -396,49 +377,74 @@ static int ipoib_mcast_join_complete(int status,
if (!status) {
mcast->backoff = 1;
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->mcast_task, 0);
mutex_unlock(&mcast_mutex);
mcast->delay_until = jiffies;
/*
* Defer carrier on work to ipoib_workqueue to avoid a
* deadlock on rtnl_lock here.
* Defer carrier on work to priv->wq to avoid a
* deadlock on rtnl_lock here. Requeue our multicast
* work too, which will end up happening right after
* our carrier on task work and will allow us to
* send out all of the non-broadcast joins
*/
if (mcast == priv->broadcast)
queue_work(ipoib_workqueue, &priv->carrier_on_task);
if (mcast == priv->broadcast) {
spin_lock_irq(&priv->lock);
queue_work(priv->wq, &priv->carrier_on_task);
__ipoib_mcast_schedule_join_thread(priv, NULL, 0);
goto out_locked;
}
} else {
if (mcast->logcount++ < 20) {
if (status == -ETIMEDOUT || status == -EAGAIN) {
ipoib_dbg_mcast(priv, "%smulticast join failed for %pI6, status %d\n",
test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) ? "sendonly " : "",
mcast->mcmember.mgid.raw, status);
} else {
ipoib_warn(priv, "%smulticast join failed for %pI6, status %d\n",
test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) ? "sendonly " : "",
mcast->mcmember.mgid.raw, status);
}
}
status = 0;
goto out;
}
if (mcast->logcount++ < 20) {
if (status == -ETIMEDOUT || status == -EAGAIN) {
ipoib_dbg_mcast(priv, "multicast join failed for %pI6, status %d\n",
mcast->mcmember.mgid.raw, status);
if (test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) &&
mcast->backoff >= 2) {
/*
* We only retry sendonly joins once before we drop
* the packet and quit trying to deal with the
* group. However, we leave the group in the
* mcast list as an unjoined group. If we want to
* try joining again, we simply queue up a packet
* and restart the join thread. The empty queue
* is why the join thread ignores this group.
*/
mcast->backoff = 1;
netif_tx_lock_bh(dev);
while (!skb_queue_empty(&mcast->pkt_queue)) {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb_dequeue(&mcast->pkt_queue));
}
netif_tx_unlock_bh(dev);
} else {
ipoib_warn(priv, "multicast join failed for %pI6, status %d\n",
mcast->mcmember.mgid.raw, status);
spin_lock_irq(&priv->lock);
/* Requeue this join task with a backoff delay */
__ipoib_mcast_schedule_join_thread(priv, mcast, 1);
goto out_locked;
}
}
mcast->backoff *= 2;
if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS)
mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS;
/* Clear the busy flag so we try again */
status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
mutex_lock(&mcast_mutex);
spin_lock_irq(&priv->lock);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue, &priv->mcast_task,
mcast->backoff * HZ);
spin_unlock_irq(&priv->lock);
mutex_unlock(&mcast_mutex);
out:
spin_lock_irq(&priv->lock);
out_locked:
/*
* Make sure to set mcast->mc before we clear the busy flag to avoid
* racing with code that checks for BUSY before checking mcast->mc
*/
if (status)
mcast->mc = NULL;
else
mcast->mc = multicast;
clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
spin_unlock_irq(&priv->lock);
complete(&mcast->done);
return status;
}
@ -446,6 +452,7 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast,
int create)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ib_sa_multicast *multicast;
struct ib_sa_mcmember_rec rec = {
.join_state = 1
};
@ -487,29 +494,18 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast,
rec.hop_limit = priv->broadcast->mcmember.hop_limit;
}
set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
init_completion(&mcast->done);
set_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags);
mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
multicast = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
&rec, comp_mask, GFP_KERNEL,
ipoib_mcast_join_complete, mcast);
if (IS_ERR(mcast->mc)) {
clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
complete(&mcast->done);
ret = PTR_ERR(mcast->mc);
if (IS_ERR(multicast)) {
ret = PTR_ERR(multicast);
ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret);
mcast->backoff *= 2;
if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS)
mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS;
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->mcast_task,
mcast->backoff * HZ);
mutex_unlock(&mcast_mutex);
spin_lock_irq(&priv->lock);
/* Requeue this join task with a backoff delay */
__ipoib_mcast_schedule_join_thread(priv, mcast, 1);
clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
spin_unlock_irq(&priv->lock);
complete(&mcast->done);
}
}
@ -519,8 +515,11 @@ void ipoib_mcast_join_task(struct work_struct *work)
container_of(work, struct ipoib_dev_priv, mcast_task.work);
struct net_device *dev = priv->dev;
struct ib_port_attr port_attr;
unsigned long delay_until = 0;
struct ipoib_mcast *mcast = NULL;
int create = 1;
if (!test_bit(IPOIB_MCAST_RUN, &priv->flags))
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
return;
if (ib_query_port(priv->ca, priv->port, &port_attr) ||
@ -536,93 +535,118 @@ void ipoib_mcast_join_task(struct work_struct *work)
else
memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));
spin_lock_irq(&priv->lock);
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
goto out;
if (!priv->broadcast) {
struct ipoib_mcast *broadcast;
if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
return;
broadcast = ipoib_mcast_alloc(dev, 1);
broadcast = ipoib_mcast_alloc(dev, 0);
if (!broadcast) {
ipoib_warn(priv, "failed to allocate broadcast group\n");
mutex_lock(&mcast_mutex);
if (test_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue,
&priv->mcast_task, HZ);
mutex_unlock(&mcast_mutex);
return;
/*
* Restart us after a 1 second delay to retry
* creating our broadcast group and attaching to
* it. Until this succeeds, this ipoib dev is
* completely stalled (multicast wise).
*/
__ipoib_mcast_schedule_join_thread(priv, NULL, 1);
goto out;
}
spin_lock_irq(&priv->lock);
memcpy(broadcast->mcmember.mgid.raw, priv->dev->broadcast + 4,
sizeof (union ib_gid));
priv->broadcast = broadcast;
__ipoib_mcast_add(dev, priv->broadcast);
spin_unlock_irq(&priv->lock);
}
if (!test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) {
if (!test_bit(IPOIB_MCAST_FLAG_BUSY, &priv->broadcast->flags))
ipoib_mcast_join(dev, priv->broadcast, 0);
return;
}
while (1) {
struct ipoib_mcast *mcast = NULL;
spin_lock_irq(&priv->lock);
list_for_each_entry(mcast, &priv->multicast_list, list) {
if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)
&& !test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)
&& !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) {
/* Found the next unjoined group */
break;
if (IS_ERR_OR_NULL(priv->broadcast->mc) &&
!test_bit(IPOIB_MCAST_FLAG_BUSY, &priv->broadcast->flags)) {
mcast = priv->broadcast;
create = 0;
if (mcast->backoff > 1 &&
time_before(jiffies, mcast->delay_until)) {
delay_until = mcast->delay_until;
mcast = NULL;
}
}
spin_unlock_irq(&priv->lock);
if (&mcast->list == &priv->multicast_list) {
/* All done */
break;
}
ipoib_mcast_join(dev, mcast, 1);
return;
goto out;
}
ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n");
/*
* We'll never get here until the broadcast group is both allocated
* and attached
*/
list_for_each_entry(mcast, &priv->multicast_list, list) {
if (IS_ERR_OR_NULL(mcast->mc) &&
!test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags) &&
(!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) ||
!skb_queue_empty(&mcast->pkt_queue))) {
if (mcast->backoff == 1 ||
time_after_eq(jiffies, mcast->delay_until)) {
/* Found the next unjoined group */
init_completion(&mcast->done);
set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
if (test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags))
create = 0;
else
create = 1;
spin_unlock_irq(&priv->lock);
ipoib_mcast_join(dev, mcast, create);
spin_lock_irq(&priv->lock);
} else if (!delay_until ||
time_before(mcast->delay_until, delay_until))
delay_until = mcast->delay_until;
}
}
clear_bit(IPOIB_MCAST_RUN, &priv->flags);
mcast = NULL;
ipoib_dbg_mcast(priv, "successfully started all multicast joins\n");
out:
if (delay_until) {
cancel_delayed_work(&priv->mcast_task);
queue_delayed_work(priv->wq, &priv->mcast_task,
delay_until - jiffies);
}
if (mcast) {
init_completion(&mcast->done);
set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
}
spin_unlock_irq(&priv->lock);
if (mcast)
ipoib_mcast_join(dev, mcast, create);
}
int ipoib_mcast_start_thread(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
unsigned long flags;
ipoib_dbg_mcast(priv, "starting multicast thread\n");
mutex_lock(&mcast_mutex);
if (!test_and_set_bit(IPOIB_MCAST_RUN, &priv->flags))
queue_delayed_work(ipoib_workqueue, &priv->mcast_task, 0);
mutex_unlock(&mcast_mutex);
spin_lock_irqsave(&priv->lock, flags);
__ipoib_mcast_schedule_join_thread(priv, NULL, 0);
spin_unlock_irqrestore(&priv->lock, flags);
return 0;
}
int ipoib_mcast_stop_thread(struct net_device *dev, int flush)
int ipoib_mcast_stop_thread(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
unsigned long flags;
ipoib_dbg_mcast(priv, "stopping multicast thread\n");
mutex_lock(&mcast_mutex);
clear_bit(IPOIB_MCAST_RUN, &priv->flags);
spin_lock_irqsave(&priv->lock, flags);
cancel_delayed_work(&priv->mcast_task);
mutex_unlock(&mcast_mutex);
spin_unlock_irqrestore(&priv->lock, flags);
if (flush)
flush_workqueue(ipoib_workqueue);
flush_workqueue(priv->wq);
return 0;
}
@ -633,6 +657,9 @@ static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
int ret = 0;
if (test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
ipoib_warn(priv, "ipoib_mcast_leave on an in-flight join\n");
if (!IS_ERR_OR_NULL(mcast->mc))
ib_sa_free_multicast(mcast->mc);
if (test_and_clear_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) {
@ -644,7 +671,9 @@ static int ipoib_mcast_leave(struct net_device *dev, struct ipoib_mcast *mcast)
be16_to_cpu(mcast->mcmember.mlid));
if (ret)
ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret);
}
} else if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags))
ipoib_dbg(priv, "leaving with no mcmember but not a "
"SENDONLY join\n");
return 0;
}
@ -667,49 +696,37 @@ void ipoib_mcast_send(struct net_device *dev, u8 *daddr, struct sk_buff *skb)
}
mcast = __ipoib_mcast_find(dev, mgid);
if (!mcast) {
/* Let's create a new send only group now */
ipoib_dbg_mcast(priv, "setting up send only multicast group for %pI6\n",
mgid);
mcast = ipoib_mcast_alloc(dev, 0);
if (!mcast || !mcast->ah) {
if (!mcast) {
ipoib_warn(priv, "unable to allocate memory for "
"multicast structure\n");
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
goto out;
/* Let's create a new send only group now */
ipoib_dbg_mcast(priv, "setting up send only multicast group for %pI6\n",
mgid);
mcast = ipoib_mcast_alloc(dev, 0);
if (!mcast) {
ipoib_warn(priv, "unable to allocate memory "
"for multicast structure\n");
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
goto unlock;
}
set_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags);
memcpy(mcast->mcmember.mgid.raw, mgid,
sizeof (union ib_gid));
__ipoib_mcast_add(dev, mcast);
list_add_tail(&mcast->list, &priv->multicast_list);
}
set_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags);
memcpy(mcast->mcmember.mgid.raw, mgid, sizeof (union ib_gid));
__ipoib_mcast_add(dev, mcast);
list_add_tail(&mcast->list, &priv->multicast_list);
}
if (!mcast->ah) {
if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE)
skb_queue_tail(&mcast->pkt_queue, skb);
else {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
}
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
ipoib_dbg_mcast(priv, "no address vector, "
"but multicast join already started\n");
else if (test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags))
ipoib_mcast_sendonly_join(mcast);
/*
* If lookup completes between here and out:, don't
* want to send packet twice.
*/
mcast = NULL;
}
out:
if (mcast && mcast->ah) {
if (!test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) {
__ipoib_mcast_schedule_join_thread(priv, NULL, 0);
}
} else {
struct ipoib_neigh *neigh;
spin_unlock_irqrestore(&priv->lock, flags);
@ -759,9 +776,12 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
spin_unlock_irqrestore(&priv->lock, flags);
/* seperate between the wait to the leave*/
/*
* make sure the in-flight joins have finished before we attempt
* to leave
*/
list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
if (test_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags))
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
wait_for_completion(&mcast->done);
list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
@ -792,9 +812,14 @@ void ipoib_mcast_restart_task(struct work_struct *work)
unsigned long flags;
struct ib_sa_mcmember_rec rec;
ipoib_dbg_mcast(priv, "restarting multicast task\n");
if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags))
/*
* shortcut...on shutdown flush is called next, just
* let it do all the work
*/
return;
ipoib_mcast_stop_thread(dev, 0);
ipoib_dbg_mcast(priv, "restarting multicast task\n");
local_irq_save(flags);
netif_addr_lock(dev);
@ -880,14 +905,27 @@ void ipoib_mcast_restart_task(struct work_struct *work)
netif_addr_unlock(dev);
local_irq_restore(flags);
/* We have to cancel outside of the spinlock */
/*
* make sure the in-flight joins have finished before we attempt
* to leave
*/
list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
wait_for_completion(&mcast->done);
list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
ipoib_mcast_leave(mcast->dev, mcast);
ipoib_mcast_free(mcast);
}
if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags))
ipoib_mcast_start_thread(dev);
/*
* Double check that we are still up
*/
if (test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) {
spin_lock_irqsave(&priv->lock, flags);
__ipoib_mcast_schedule_join_thread(priv, NULL, 0);
spin_unlock_irqrestore(&priv->lock, flags);
}
}
#ifdef CONFIG_INFINIBAND_IPOIB_DEBUG

44
drivers/infiniband/ulp/ipoib/ipoib_verbs.c
View File

@ -157,6 +157,16 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
goto out_free_pd;
}
/*
* the various IPoIB tasks assume they will never race against
* themselves, so always use a single thread workqueue
*/
priv->wq = create_singlethread_workqueue("ipoib_wq");
if (!priv->wq) {
printk(KERN_WARNING "ipoib: failed to allocate device WQ\n");
goto out_free_mr;
}
size = ipoib_recvq_size + 1;
ret = ipoib_cm_dev_init(dev);
if (!ret) {
@ -165,12 +175,13 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
size += ipoib_recvq_size + 1; /* 1 extra for rx_drain_qp */
else
size += ipoib_recvq_size * ipoib_max_conn_qp;
}
} else
goto out_free_wq;
priv->recv_cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
if (IS_ERR(priv->recv_cq)) {
printk(KERN_WARNING "%s: failed to create receive CQ\n", ca->name);
goto out_free_mr;
goto out_cm_dev_cleanup;
}
priv->send_cq = ib_create_cq(priv->ca, ipoib_send_comp_handler, NULL,
@ -216,15 +227,10 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
priv->tx_wr.send_flags = IB_SEND_SIGNALED;
priv->rx_sge[0].lkey = priv->mr->lkey;
if (ipoib_ud_need_sg(priv->max_ib_mtu)) {
priv->rx_sge[0].length = IPOIB_UD_HEAD_SIZE;
priv->rx_sge[1].length = PAGE_SIZE;
priv->rx_sge[1].lkey = priv->mr->lkey;
priv->rx_wr.num_sge = IPOIB_UD_RX_SG;
} else {
priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
priv->rx_wr.num_sge = 1;
}
priv->rx_sge[0].length = IPOIB_UD_BUF_SIZE(priv->max_ib_mtu);
priv->rx_wr.num_sge = 1;
priv->rx_wr.next = NULL;
priv->rx_wr.sg_list = priv->rx_sge;
@ -236,12 +242,19 @@ out_free_send_cq:
out_free_recv_cq:
ib_destroy_cq(priv->recv_cq);
out_cm_dev_cleanup:
ipoib_cm_dev_cleanup(dev);
out_free_wq:
destroy_workqueue(priv->wq);
priv->wq = NULL;
out_free_mr:
ib_dereg_mr(priv->mr);
ipoib_cm_dev_cleanup(dev);
out_free_pd:
ib_dealloc_pd(priv->pd);
return -ENODEV;
}
@ -265,11 +278,18 @@ void ipoib_transport_dev_cleanup(struct net_device *dev)
ipoib_cm_dev_cleanup(dev);
if (priv->wq) {
flush_workqueue(priv->wq);
destroy_workqueue(priv->wq);
priv->wq = NULL;
}
if (ib_dereg_mr(priv->mr))
ipoib_warn(priv, "ib_dereg_mr failed\n");
if (ib_dealloc_pd(priv->pd))
ipoib_warn(priv, "ib_dealloc_pd failed\n");
}
void ipoib_event(struct ib_event_handler *handler,

66
drivers/infiniband/ulp/iser/iscsi_iser.h
View File

@ -69,7 +69,7 @@
#define DRV_NAME "iser"
#define PFX DRV_NAME ": "
#define DRV_VER "1.5"
#define DRV_VER "1.6"
#define iser_dbg(fmt, arg...) \
do { \
@ -218,22 +218,21 @@ enum iser_data_dir {
/**
* struct iser_data_buf - iSER data buffer
*
* @buf: pointer to the sg list
* @sg: pointer to the sg list
* @size: num entries of this sg
* @data_len: total beffer byte len
* @dma_nents: returned by dma_map_sg
* @copy_buf: allocated copy buf for SGs unaligned
* for rdma which are copied
* @sg_single: SG-ified clone of a non SG SC or
* unaligned SG
* @orig_sg: pointer to the original sg list (in case
* we used a copy)
* @orig_size: num entris of orig sg list
*/
struct iser_data_buf {
void *buf;
struct scatterlist *sg;
unsigned int size;
unsigned long data_len;
unsigned int dma_nents;
char *copy_buf;
struct scatterlist sg_single;
struct scatterlist *orig_sg;
unsigned int orig_size;
};
/* fwd declarations */
@ -244,35 +243,14 @@ struct iscsi_endpoint;
/**
* struct iser_mem_reg - iSER memory registration info
*
* @lkey: MR local key
* @rkey: MR remote key
* @va: MR start address (buffer va)
* @len: MR length
* @sge: memory region sg element
* @rkey: memory region remote key
* @mem_h: pointer to registration context (FMR/Fastreg)
*/
struct iser_mem_reg {
u32 lkey;
u32 rkey;
u64 va;
u64 len;
void *mem_h;
};
/**
* struct iser_regd_buf - iSER buffer registration desc
*
* @reg: memory registration info
* @virt_addr: virtual address of buffer
* @device: reference to iser device
* @direction: dma direction (for dma_unmap)
* @data_size: data buffer size in bytes
*/
struct iser_regd_buf {
struct iser_mem_reg reg;
void *virt_addr;
struct iser_device *device;
enum dma_data_direction direction;
unsigned int data_size;
struct ib_sge sge;
u32 rkey;
void *mem_h;
};
enum iser_desc_type {
@ -534,11 +512,9 @@ struct iser_conn {
* @sc: link to scsi command
* @command_sent: indicate if command was sent
* @dir: iser data direction
* @rdma_regd: task rdma registration desc
* @rdma_reg: task rdma registration desc
* @data: iser data buffer desc
* @data_copy: iser data copy buffer desc (bounce buffer)
* @prot: iser protection buffer desc
* @prot_copy: iser protection copy buffer desc (bounce buffer)
*/
struct iscsi_iser_task {
struct iser_tx_desc desc;
@ -547,11 +523,9 @@ struct iscsi_iser_task {
struct scsi_cmnd *sc;
int command_sent;
int dir[ISER_DIRS_NUM];
struct iser_regd_buf rdma_regd[ISER_DIRS_NUM];
struct iser_mem_reg rdma_reg[ISER_DIRS_NUM];
struct iser_data_buf data[ISER_DIRS_NUM];
struct iser_data_buf data_copy[ISER_DIRS_NUM];
struct iser_data_buf prot[ISER_DIRS_NUM];
struct iser_data_buf prot_copy[ISER_DIRS_NUM];
};
struct iser_page_vec {
@ -621,7 +595,6 @@ void iser_free_rx_descriptors(struct iser_conn *iser_conn);
void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
struct iser_data_buf *mem,
struct iser_data_buf *mem_copy,
enum iser_data_dir cmd_dir);
int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *task,
@ -634,10 +607,6 @@ int iser_connect(struct iser_conn *iser_conn,
struct sockaddr *dst_addr,
int non_blocking);
int iser_reg_page_vec(struct ib_conn *ib_conn,
struct iser_page_vec *page_vec,
struct iser_mem_reg *mem_reg);
void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir);
void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task,
@ -667,4 +636,9 @@ int iser_create_fastreg_pool(struct ib_conn *ib_conn, unsigned cmds_max);
void iser_free_fastreg_pool(struct ib_conn *ib_conn);
u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir, sector_t *sector);
struct fast_reg_descriptor *
iser_reg_desc_get(struct ib_conn *ib_conn);
void
iser_reg_desc_put(struct ib_conn *ib_conn,
struct fast_reg_descriptor *desc);
#endif

66
drivers/infiniband/ulp/iser/iser_initiator.c
View File

@ -50,7 +50,7 @@ static int iser_prepare_read_cmd(struct iscsi_task *task)
{
struct iscsi_iser_task *iser_task = task->dd_data;
struct iser_device *device = iser_task->iser_conn->ib_conn.device;
struct iser_regd_buf *regd_buf;
struct iser_mem_reg *mem_reg;
int err;
struct iser_hdr *hdr = &iser_task->desc.iser_header;
struct iser_data_buf *buf_in = &iser_task->data[ISER_DIR_IN];
@ -78,15 +78,15 @@ static int iser_prepare_read_cmd(struct iscsi_task *task)
iser_err("Failed to set up Data-IN RDMA\n");
return err;
}
regd_buf = &iser_task->rdma_regd[ISER_DIR_IN];
mem_reg = &iser_task->rdma_reg[ISER_DIR_IN];
hdr->flags |= ISER_RSV;
hdr->read_stag = cpu_to_be32(regd_buf->reg.rkey);
hdr->read_va = cpu_to_be64(regd_buf->reg.va);
hdr->read_stag = cpu_to_be32(mem_reg->rkey);
hdr->read_va = cpu_to_be64(mem_reg->sge.addr);
iser_dbg("Cmd itt:%d READ tags RKEY:%#.4X VA:%#llX\n",
task->itt, regd_buf->reg.rkey,
(unsigned long long)regd_buf->reg.va);
task->itt, mem_reg->rkey,
(unsigned long long)mem_reg->sge.addr);
return 0;
}
@ -104,7 +104,7 @@ iser_prepare_write_cmd(struct iscsi_task *task,
{
struct iscsi_iser_task *iser_task = task->dd_data;
struct iser_device *device = iser_task->iser_conn->ib_conn.device;
struct iser_regd_buf *regd_buf;
struct iser_mem_reg *mem_reg;
int err;
struct iser_hdr *hdr = &iser_task->desc.iser_header;
struct iser_data_buf *buf_out = &iser_task->data[ISER_DIR_OUT];
@ -134,25 +134,25 @@ iser_prepare_write_cmd(struct iscsi_task *task,
return err;
}
regd_buf = &iser_task->rdma_regd[ISER_DIR_OUT];
mem_reg = &iser_task->rdma_reg[ISER_DIR_OUT];
if (unsol_sz < edtl) {
hdr->flags |= ISER_WSV;
hdr->write_stag = cpu_to_be32(regd_buf->reg.rkey);
hdr->write_va = cpu_to_be64(regd_buf->reg.va + unsol_sz);
hdr->write_stag = cpu_to_be32(mem_reg->rkey);
hdr->write_va = cpu_to_be64(mem_reg->sge.addr + unsol_sz);
iser_dbg("Cmd itt:%d, WRITE tags, RKEY:%#.4X "
"VA:%#llX + unsol:%d\n",
task->itt, regd_buf->reg.rkey,
(unsigned long long)regd_buf->reg.va, unsol_sz);
task->itt, mem_reg->rkey,
(unsigned long long)mem_reg->sge.addr, unsol_sz);
}
if (imm_sz > 0) {
iser_dbg("Cmd itt:%d, WRITE, adding imm.data sz: %d\n",
task->itt, imm_sz);
tx_dsg->addr = regd_buf->reg.va;
tx_dsg->addr = mem_reg->sge.addr;
tx_dsg->length = imm_sz;
tx_dsg->lkey = regd_buf->reg.lkey;
tx_dsg->lkey = mem_reg->sge.lkey;
iser_task->desc.num_sge = 2;
}
@ -401,16 +401,16 @@ int iser_send_command(struct iscsi_conn *conn,
}
if (scsi_sg_count(sc)) { /* using a scatter list */
data_buf->buf = scsi_sglist(sc);
data_buf->sg = scsi_sglist(sc);
data_buf->size = scsi_sg_count(sc);
}
data_buf->data_len = scsi_bufflen(sc);
if (scsi_prot_sg_count(sc)) {
prot_buf->buf = scsi_prot_sglist(sc);
prot_buf->sg = scsi_prot_sglist(sc);
prot_buf->size = scsi_prot_sg_count(sc);
prot_buf->data_len = data_buf->data_len >>
ilog2(sc->device->sector_size) * 8;
prot_buf->data_len = (data_buf->data_len >>
ilog2(sc->device->sector_size)) * 8;
}
if (hdr->flags & ISCSI_FLAG_CMD_READ) {
@ -450,7 +450,7 @@ int iser_send_data_out(struct iscsi_conn *conn,
struct iser_conn *iser_conn = conn->dd_data;
struct iscsi_iser_task *iser_task = task->dd_data;
struct iser_tx_desc *tx_desc = NULL;
struct iser_regd_buf *regd_buf;
struct iser_mem_reg *mem_reg;
unsigned long buf_offset;
unsigned long data_seg_len;
uint32_t itt;
@ -477,11 +477,11 @@ int iser_send_data_out(struct iscsi_conn *conn,
/* build the tx desc */
iser_initialize_task_headers(task, tx_desc);
regd_buf = &iser_task->rdma_regd[ISER_DIR_OUT];
mem_reg = &iser_task->rdma_reg[ISER_DIR_OUT];
tx_dsg = &tx_desc->tx_sg[1];
tx_dsg->addr = regd_buf->reg.va + buf_offset;
tx_dsg->length = data_seg_len;
tx_dsg->lkey = regd_buf->reg.lkey;
tx_dsg->addr = mem_reg->sge.addr + buf_offset;
tx_dsg->length = data_seg_len;
tx_dsg->lkey = mem_reg->sge.lkey;
tx_desc->num_sge = 2;
if (buf_offset + data_seg_len > iser_task->data[ISER_DIR_OUT].data_len) {
@ -658,10 +658,10 @@ void iser_task_rdma_init(struct iscsi_iser_task *iser_task)
iser_task->prot[ISER_DIR_IN].data_len = 0;
iser_task->prot[ISER_DIR_OUT].data_len = 0;
memset(&iser_task->rdma_regd[ISER_DIR_IN], 0,
sizeof(struct iser_regd_buf));
memset(&iser_task->rdma_regd[ISER_DIR_OUT], 0,
sizeof(struct iser_regd_buf));
memset(&iser_task->rdma_reg[ISER_DIR_IN], 0,
sizeof(struct iser_mem_reg));
memset(&iser_task->rdma_reg[ISER_DIR_OUT], 0,
sizeof(struct iser_mem_reg));
}
void iser_task_rdma_finalize(struct iscsi_iser_task *iser_task)
@ -674,35 +674,31 @@ void iser_task_rdma_finalize(struct iscsi_iser_task *iser_task)
/* if we were reading, copy back to unaligned sglist,
* anyway dma_unmap and free the copy
*/
if (iser_task->data_copy[ISER_DIR_IN].copy_buf != NULL) {
if (iser_task->data[ISER_DIR_IN].orig_sg) {
is_rdma_data_aligned = 0;
iser_finalize_rdma_unaligned_sg(iser_task,
&iser_task->data[ISER_DIR_IN],
&iser_task->data_copy[ISER_DIR_IN],
ISER_DIR_IN);
}
if (iser_task->data_copy[ISER_DIR_OUT].copy_buf != NULL) {
if (iser_task->data[ISER_DIR_OUT].orig_sg) {
is_rdma_data_aligned = 0;
iser_finalize_rdma_unaligned_sg(iser_task,
&iser_task->data[ISER_DIR_OUT],
&iser_task->data_copy[ISER_DIR_OUT],
ISER_DIR_OUT);
}
if (iser_task->prot_copy[ISER_DIR_IN].copy_buf != NULL) {
if (iser_task->prot[ISER_DIR_IN].orig_sg) {
is_rdma_prot_aligned = 0;
iser_finalize_rdma_unaligned_sg(iser_task,
&iser_task->prot[ISER_DIR_IN],
&iser_task->prot_copy[ISER_DIR_IN],
ISER_DIR_IN);
}
if (iser_task->prot_copy[ISER_DIR_OUT].copy_buf != NULL) {
if (iser_task->prot[ISER_DIR_OUT].orig_sg) {
is_rdma_prot_aligned = 0;
iser_finalize_rdma_unaligned_sg(iser_task,
&iser_task->prot[ISER_DIR_OUT],
&iser_task->prot_copy[ISER_DIR_OUT],
ISER_DIR_OUT);
}

521
drivers/infiniband/ulp/iser/iser_memory.c
View File

@ -39,68 +39,173 @@
#include "iscsi_iser.h"
#define ISER_KMALLOC_THRESHOLD 0x20000 /* 128K - kmalloc limit */
static void
iser_free_bounce_sg(struct iser_data_buf *data)
{
struct scatterlist *sg;
int count;
for_each_sg(data->sg, sg, data->size, count)
__free_page(sg_page(sg));
kfree(data->sg);
data->sg = data->orig_sg;
data->size = data->orig_size;
data->orig_sg = NULL;
data->orig_size = 0;
}
static int
iser_alloc_bounce_sg(struct iser_data_buf *data)
{
struct scatterlist *sg;
struct page *page;
unsigned long length = data->data_len;
int i = 0, nents = DIV_ROUND_UP(length, PAGE_SIZE);
sg = kcalloc(nents, sizeof(*sg), GFP_ATOMIC);
if (!sg)
goto err;
sg_init_table(sg, nents);
while (length) {
u32 page_len = min_t(u32, length, PAGE_SIZE);
page = alloc_page(GFP_ATOMIC);
if (!page)
goto err;
sg_set_page(&sg[i], page, page_len, 0);
length -= page_len;
i++;
}
data->orig_sg = data->sg;
data->orig_size = data->size;
data->sg = sg;
data->size = nents;
return 0;
err:
for (; i > 0; i--)
__free_page(sg_page(&sg[i - 1]));
kfree(sg);
return -ENOMEM;
}
static void
iser_copy_bounce(struct iser_data_buf *data, bool to_buffer)
{
struct scatterlist *osg, *bsg = data->sg;
void *oaddr, *baddr;
unsigned int left = data->data_len;
unsigned int bsg_off = 0;
int i;
for_each_sg(data->orig_sg, osg, data->orig_size, i) {
unsigned int copy_len, osg_off = 0;
oaddr = kmap_atomic(sg_page(osg)) + osg->offset;
copy_len = min(left, osg->length);
while (copy_len) {
unsigned int len = min(copy_len, bsg->length - bsg_off);
baddr = kmap_atomic(sg_page(bsg)) + bsg->offset;
if (to_buffer)
memcpy(baddr + bsg_off, oaddr + osg_off, len);
else
memcpy(oaddr + osg_off, baddr + bsg_off, len);
kunmap_atomic(baddr - bsg->offset);
osg_off += len;
bsg_off += len;
copy_len -= len;
if (bsg_off >= bsg->length) {
bsg = sg_next(bsg);
bsg_off = 0;
}
}
kunmap_atomic(oaddr - osg->offset);
left -= osg_off;
}
}
static inline void
iser_copy_from_bounce(struct iser_data_buf *data)
{
iser_copy_bounce(data, false);
}
static inline void
iser_copy_to_bounce(struct iser_data_buf *data)
{
iser_copy_bounce(data, true);
}
struct fast_reg_descriptor *
iser_reg_desc_get(struct ib_conn *ib_conn)
{
struct fast_reg_descriptor *desc;
unsigned long flags;
spin_lock_irqsave(&ib_conn->lock, flags);
desc = list_first_entry(&ib_conn->fastreg.pool,
struct fast_reg_descriptor, list);
list_del(&desc->list);
spin_unlock_irqrestore(&ib_conn->lock, flags);
return desc;
}
void
iser_reg_desc_put(struct ib_conn *ib_conn,
struct fast_reg_descriptor *desc)
{
unsigned long flags;
spin_lock_irqsave(&ib_conn->lock, flags);
list_add(&desc->list, &ib_conn->fastreg.pool);
spin_unlock_irqrestore(&ib_conn->lock, flags);
}
/**
* iser_start_rdma_unaligned_sg
*/
static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
struct iser_data_buf *data,
struct iser_data_buf *data_copy,
enum iser_data_dir cmd_dir)
{
struct ib_device *dev = iser_task->iser_conn->ib_conn.device->ib_device;
struct scatterlist *sgl = (struct scatterlist *)data->buf;
struct scatterlist *sg;
char *mem = NULL;
unsigned long cmd_data_len = 0;
int dma_nents, i;
int rc;
for_each_sg(sgl, sg, data->size, i)
cmd_data_len += ib_sg_dma_len(dev, sg);
if (cmd_data_len > ISER_KMALLOC_THRESHOLD)
mem = (void *)__get_free_pages(GFP_ATOMIC,
ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT);
else
mem = kmalloc(cmd_data_len, GFP_ATOMIC);
if (mem == NULL) {
iser_err("Failed to allocate mem size %d %d for copying sglist\n",
data->size, (int)cmd_data_len);
return -ENOMEM;
rc = iser_alloc_bounce_sg(data);
if (rc) {
iser_err("Failed to allocate bounce for data len %lu\n",
data->data_len);
return rc;
}
if (cmd_dir == ISER_DIR_OUT) {
/* copy the unaligned sg the buffer which is used for RDMA */
char *p, *from;
if (cmd_dir == ISER_DIR_OUT)
iser_copy_to_bounce(data);
sgl = (struct scatterlist *)data->buf;
p = mem;
for_each_sg(sgl, sg, data->size, i) {
from = kmap_atomic(sg_page(sg));
memcpy(p,
from + sg->offset,
sg->length);
kunmap_atomic(from);
p += sg->length;
}
data->dma_nents = ib_dma_map_sg(dev, data->sg, data->size,
(cmd_dir == ISER_DIR_OUT) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
if (!data->dma_nents) {
iser_err("Got dma_nents %d, something went wrong...\n",
data->dma_nents);
rc = -ENOMEM;
goto err;
}
sg_init_one(&data_copy->sg_single, mem, cmd_data_len);
data_copy->buf = &data_copy->sg_single;
data_copy->size = 1;
data_copy->copy_buf = mem;
dma_nents = ib_dma_map_sg(dev, &data_copy->sg_single, 1,
(cmd_dir == ISER_DIR_OUT) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
BUG_ON(dma_nents == 0);
data_copy->dma_nents = dma_nents;
data_copy->data_len = cmd_data_len;
return 0;
err:
iser_free_bounce_sg(data);
return rc;
}
/**
@ -109,51 +214,18 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
struct iser_data_buf *data,
struct iser_data_buf *data_copy,
enum iser_data_dir cmd_dir)
{
struct ib_device *dev;
unsigned long cmd_data_len;
struct ib_device *dev = iser_task->iser_conn->ib_conn.device->ib_device;
dev = iser_task->iser_conn->ib_conn.device->ib_device;
ib_dma_unmap_sg(dev, &data_copy->sg_single, 1,
ib_dma_unmap_sg(dev, data->sg, data->size,
(cmd_dir == ISER_DIR_OUT) ?
DMA_TO_DEVICE : DMA_FROM_DEVICE);
if (cmd_dir == ISER_DIR_IN) {
char *mem;
struct scatterlist *sgl, *sg;
unsigned char *p, *to;
unsigned int sg_size;
int i;
if (cmd_dir == ISER_DIR_IN)
iser_copy_from_bounce(data);
/* copy back read RDMA to unaligned sg */
mem = data_copy->copy_buf;
sgl = (struct scatterlist *)data->buf;
sg_size = data->size;
p = mem;
for_each_sg(sgl, sg, sg_size, i) {
to = kmap_atomic(sg_page(sg));
memcpy(to + sg->offset,
p,
sg->length);
kunmap_atomic(to);
p += sg->length;
}
}
cmd_data_len = data->data_len;
if (cmd_data_len > ISER_KMALLOC_THRESHOLD)
free_pages((unsigned long)data_copy->copy_buf,
ilog2(roundup_pow_of_two(cmd_data_len)) - PAGE_SHIFT);
else
kfree(data_copy->copy_buf);
data_copy->copy_buf = NULL;
iser_free_bounce_sg(data);
}
#define IS_4K_ALIGNED(addr) ((((unsigned long)addr) & ~MASK_4K) == 0)
@ -175,7 +247,7 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
struct ib_device *ibdev, u64 *pages,
int *offset, int *data_size)
{
struct scatterlist *sg, *sgl = (struct scatterlist *)data->buf;
struct scatterlist *sg, *sgl = data->sg;
u64 start_addr, end_addr, page, chunk_start = 0;
unsigned long total_sz = 0;
unsigned int dma_len;
@ -227,14 +299,14 @@ static int iser_sg_to_page_vec(struct iser_data_buf *data,
static int iser_data_buf_aligned_len(struct iser_data_buf *data,
struct ib_device *ibdev)
{
struct scatterlist *sgl, *sg, *next_sg = NULL;
struct scatterlist *sg, *sgl, *next_sg = NULL;
u64 start_addr, end_addr;
int i, ret_len, start_check = 0;
if (data->dma_nents == 1)
return 1;
sgl = (struct scatterlist *)data->buf;
sgl = data->sg;
start_addr = ib_sg_dma_address(ibdev, sgl);
for_each_sg(sgl, sg, data->dma_nents, i) {
@ -266,11 +338,10 @@ static int iser_data_buf_aligned_len(struct iser_data_buf *data,
static void iser_data_buf_dump(struct iser_data_buf *data,
struct ib_device *ibdev)
{
struct scatterlist *sgl = (struct scatterlist *)data->buf;
struct scatterlist *sg;
int i;
for_each_sg(sgl, sg, data->dma_nents, i)
for_each_sg(data->sg, sg, data->dma_nents, i)
iser_dbg("sg[%d] dma_addr:0x%lX page:0x%p "
"off:0x%x sz:0x%x dma_len:0x%x\n",
i, (unsigned long)ib_sg_dma_address(ibdev, sg),
@ -288,31 +359,6 @@ static void iser_dump_page_vec(struct iser_page_vec *page_vec)
iser_err("%d %lx\n",i,(unsigned long)page_vec->pages[i]);
}
static void iser_page_vec_build(struct iser_data_buf *data,
struct iser_page_vec *page_vec,
struct ib_device *ibdev)
{
int page_vec_len = 0;
page_vec->length = 0;
page_vec->offset = 0;
iser_dbg("Translating sg sz: %d\n", data->dma_nents);
page_vec_len = iser_sg_to_page_vec(data, ibdev, page_vec->pages,
&page_vec->offset,
&page_vec->data_size);
iser_dbg("sg len %d page_vec_len %d\n", data->dma_nents, page_vec_len);
page_vec->length = page_vec_len;
if (page_vec_len * SIZE_4K < page_vec->data_size) {
iser_err("page_vec too short to hold this SG\n");
iser_data_buf_dump(data, ibdev);
iser_dump_page_vec(page_vec);
BUG();
}
}
int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
struct iser_data_buf *data,
enum iser_data_dir iser_dir,
@ -323,7 +369,7 @@ int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
iser_task->dir[iser_dir] = 1;
dev = iser_task->iser_conn->ib_conn.device->ib_device;
data->dma_nents = ib_dma_map_sg(dev, data->buf, data->size, dma_dir);
data->dma_nents = ib_dma_map_sg(dev, data->sg, data->size, dma_dir);
if (data->dma_nents == 0) {
iser_err("dma_map_sg failed!!!\n");
return -EINVAL;
@ -338,24 +384,41 @@ void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task,
struct ib_device *dev;
dev = iser_task->iser_conn->ib_conn.device->ib_device;
ib_dma_unmap_sg(dev, data->buf, data->size, dir);
ib_dma_unmap_sg(dev, data->sg, data->size, dir);
}
static int
iser_reg_dma(struct iser_device *device, struct iser_data_buf *mem,
struct iser_mem_reg *reg)
{
struct scatterlist *sg = mem->sg;
reg->sge.lkey = device->mr->lkey;
reg->rkey = device->mr->rkey;
reg->sge.addr = ib_sg_dma_address(device->ib_device, &sg[0]);
reg->sge.length = ib_sg_dma_len(device->ib_device, &sg[0]);
iser_dbg("Single DMA entry: lkey=0x%x, rkey=0x%x, addr=0x%llx,"
" length=0x%x\n", reg->sge.lkey, reg->rkey,
reg->sge.addr, reg->sge.length);
return 0;
}
static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
struct ib_device *ibdev,
struct iser_data_buf *mem,
struct iser_data_buf *mem_copy,
enum iser_data_dir cmd_dir,
int aligned_len)
{
struct iscsi_conn *iscsi_conn = iser_task->iser_conn->iscsi_conn;
struct iscsi_conn *iscsi_conn = iser_task->iser_conn->iscsi_conn;
struct iser_device *device = iser_task->iser_conn->ib_conn.device;
iscsi_conn->fmr_unalign_cnt++;
iser_warn("rdma alignment violation (%d/%d aligned) or FMR not supported\n",
aligned_len, mem->size);
if (iser_debug_level > 0)
iser_data_buf_dump(mem, ibdev);
iser_data_buf_dump(mem, device->ib_device);
/* unmap the command data before accessing it */
iser_dma_unmap_task_data(iser_task, mem,
@ -364,12 +427,94 @@ static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
/* allocate copy buf, if we are writing, copy the */
/* unaligned scatterlist, dma map the copy */
if (iser_start_rdma_unaligned_sg(iser_task, mem, mem_copy, cmd_dir) != 0)
if (iser_start_rdma_unaligned_sg(iser_task, mem, cmd_dir) != 0)
return -ENOMEM;
return 0;
}
/**
* iser_reg_page_vec - Register physical memory
*
* returns: 0 on success, errno code on failure
*/
static
int iser_reg_page_vec(struct iscsi_iser_task *iser_task,
struct iser_data_buf *mem,
struct iser_page_vec *page_vec,
struct iser_mem_reg *mem_reg)
{
struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
struct iser_device *device = ib_conn->device;
struct ib_pool_fmr *fmr;
int ret, plen;
plen = iser_sg_to_page_vec(mem, device->ib_device,
page_vec->pages,
&page_vec->offset,
&page_vec->data_size);
page_vec->length = plen;
if (plen * SIZE_4K < page_vec->data_size) {
iser_err("page vec too short to hold this SG\n");
iser_data_buf_dump(mem, device->ib_device);
iser_dump_page_vec(page_vec);
return -EINVAL;
}
fmr = ib_fmr_pool_map_phys(ib_conn->fmr.pool,
page_vec->pages,
page_vec->length,
page_vec->pages[0]);
if (IS_ERR(fmr)) {
ret = PTR_ERR(fmr);
iser_err("ib_fmr_pool_map_phys failed: %d\n", ret);
return ret;
}
mem_reg->sge.lkey = fmr->fmr->lkey;
mem_reg->rkey = fmr->fmr->rkey;
mem_reg->sge.addr = page_vec->pages[0] + page_vec->offset;
mem_reg->sge.length = page_vec->data_size;
mem_reg->mem_h = fmr;
return 0;
}
/**
* Unregister (previosuly registered using FMR) memory.
* If memory is non-FMR does nothing.
*/
void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir)
{
struct iser_mem_reg *reg = &iser_task->rdma_reg[cmd_dir];
int ret;
if (!reg->mem_h)
return;
iser_dbg("PHYSICAL Mem.Unregister mem_h %p\n", reg->mem_h);
ret = ib_fmr_pool_unmap((struct ib_pool_fmr *)reg->mem_h);
if (ret)
iser_err("ib_fmr_pool_unmap failed %d\n", ret);
reg->mem_h = NULL;
}
void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir)
{
struct iser_mem_reg *reg = &iser_task->rdma_reg[cmd_dir];
if (!reg->mem_h)
return;
iser_reg_desc_put(&iser_task->iser_conn->ib_conn,
reg->mem_h);
reg->mem_h = NULL;
}
/**
* iser_reg_rdma_mem_fmr - Registers memory intended for RDMA,
* using FMR (if possible) obtaining rkey and va
@ -383,45 +528,29 @@ int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
struct iser_device *device = ib_conn->device;
struct ib_device *ibdev = device->ib_device;
struct iser_data_buf *mem = &iser_task->data[cmd_dir];
struct iser_regd_buf *regd_buf;
struct iser_mem_reg *mem_reg;
int aligned_len;
int err;
int i;
struct scatterlist *sg;
regd_buf = &iser_task->rdma_regd[cmd_dir];
mem_reg = &iser_task->rdma_reg[cmd_dir];
aligned_len = iser_data_buf_aligned_len(mem, ibdev);
if (aligned_len != mem->dma_nents) {
err = fall_to_bounce_buf(iser_task, ibdev, mem,
&iser_task->data_copy[cmd_dir],
err = fall_to_bounce_buf(iser_task, mem,
cmd_dir, aligned_len);
if (err) {
iser_err("failed to allocate bounce buffer\n");
return err;
}
mem = &iser_task->data_copy[cmd_dir];
}
/* if there a single dma entry, FMR is not needed */
if (mem->dma_nents == 1) {
sg = (struct scatterlist *)mem->buf;
regd_buf->reg.lkey = device->mr->lkey;
regd_buf->reg.rkey = device->mr->rkey;
regd_buf->reg.len = ib_sg_dma_len(ibdev, &sg[0]);
regd_buf->reg.va = ib_sg_dma_address(ibdev, &sg[0]);
iser_dbg("PHYSICAL Mem.register: lkey: 0x%08X rkey: 0x%08X "
"va: 0x%08lX sz: %ld]\n",
(unsigned int)regd_buf->reg.lkey,
(unsigned int)regd_buf->reg.rkey,
(unsigned long)regd_buf->reg.va,
(unsigned long)regd_buf->reg.len);
return iser_reg_dma(device, mem, mem_reg);
} else { /* use FMR for multiple dma entries */
iser_page_vec_build(mem, ib_conn->fmr.page_vec, ibdev);
err = iser_reg_page_vec(ib_conn, ib_conn->fmr.page_vec,
&regd_buf->reg);
err = iser_reg_page_vec(iser_task, mem, ib_conn->fmr.page_vec,
mem_reg);
if (err && err != -EAGAIN) {
iser_data_buf_dump(mem, ibdev);
iser_err("mem->dma_nents = %d (dlength = 0x%x)\n",
@ -519,8 +648,10 @@ iser_inv_rkey(struct ib_send_wr *inv_wr, struct ib_mr *mr)
static int
iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
struct fast_reg_descriptor *desc, struct ib_sge *data_sge,
struct ib_sge *prot_sge, struct ib_sge *sig_sge)
struct fast_reg_descriptor *desc,
struct iser_mem_reg *data_reg,
struct iser_mem_reg *prot_reg,
struct iser_mem_reg *sig_reg)
{
struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
struct iser_pi_context *pi_ctx = desc->pi_ctx;
@ -544,12 +675,12 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
memset(&sig_wr, 0, sizeof(sig_wr));
sig_wr.opcode = IB_WR_REG_SIG_MR;
sig_wr.wr_id = ISER_FASTREG_LI_WRID;
sig_wr.sg_list = data_sge;
sig_wr.sg_list = &data_reg->sge;
sig_wr.num_sge = 1;
sig_wr.wr.sig_handover.sig_attrs = &sig_attrs;
sig_wr.wr.sig_handover.sig_mr = pi_ctx->sig_mr;
if (scsi_prot_sg_count(iser_task->sc))
sig_wr.wr.sig_handover.prot = prot_sge;
sig_wr.wr.sig_handover.prot = &prot_reg->sge;
sig_wr.wr.sig_handover.access_flags = IB_ACCESS_LOCAL_WRITE |
IB_ACCESS_REMOTE_READ |
IB_ACCESS_REMOTE_WRITE;
@ -566,27 +697,26 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
}
desc->reg_indicators &= ~ISER_SIG_KEY_VALID;
sig_sge->lkey = pi_ctx->sig_mr->lkey;
sig_sge->addr = 0;
sig_sge->length = scsi_transfer_length(iser_task->sc);
sig_reg->sge.lkey = pi_ctx->sig_mr->lkey;
sig_reg->rkey = pi_ctx->sig_mr->rkey;
sig_reg->sge.addr = 0;
sig_reg->sge.length = scsi_transfer_length(iser_task->sc);
iser_dbg("sig_sge: addr: 0x%llx length: %u lkey: 0x%x\n",
sig_sge->addr, sig_sge->length,
sig_sge->lkey);
iser_dbg("sig_sge: lkey: 0x%x, rkey: 0x%x, addr: 0x%llx, length: %u\n",
sig_reg->sge.lkey, sig_reg->rkey, sig_reg->sge.addr,
sig_reg->sge.length);
err:
return ret;
}
static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
struct iser_regd_buf *regd_buf,
struct iser_data_buf *mem,
struct fast_reg_descriptor *desc,
enum iser_reg_indicator ind,
struct ib_sge *sge)
struct iser_mem_reg *reg)
{
struct fast_reg_descriptor *desc = regd_buf->reg.mem_h;
struct ib_conn *ib_conn = &iser_task->iser_conn->ib_conn;
struct iser_device *device = ib_conn->device;
struct ib_device *ibdev = device->ib_device;
struct ib_mr *mr;
struct ib_fast_reg_page_list *frpl;
struct ib_send_wr fastreg_wr, inv_wr;
@ -594,17 +724,8 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
int ret, offset, size, plen;
/* if there a single dma entry, dma mr suffices */
if (mem->dma_nents == 1) {
struct scatterlist *sg = (struct scatterlist *)mem->buf;
sge->lkey = device->mr->lkey;
sge->addr = ib_sg_dma_address(ibdev, &sg[0]);
sge->length = ib_sg_dma_len(ibdev, &sg[0]);
iser_dbg("Single DMA entry: lkey=0x%x, addr=0x%llx, length=0x%x\n",
sge->lkey, sge->addr, sge->length);
return 0;
}
if (mem->dma_nents == 1)
return iser_reg_dma(device, mem, reg);
if (ind == ISER_DATA_KEY_VALID) {
mr = desc->data_mr;
@ -652,9 +773,10 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
}
desc->reg_indicators &= ~ind;
sge->lkey = mr->lkey;
sge->addr = frpl->page_list[0] + offset;
sge->length = size;
reg->sge.lkey = mr->lkey;
reg->rkey = mr->rkey;
reg->sge.addr = frpl->page_list[0] + offset;
reg->sge.length = size;
return ret;
}
@ -672,93 +794,66 @@ int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *iser_task,
struct iser_device *device = ib_conn->device;
struct ib_device *ibdev = device->ib_device;
struct iser_data_buf *mem = &iser_task->data[cmd_dir];
struct iser_regd_buf *regd_buf = &iser_task->rdma_regd[cmd_dir];
struct iser_mem_reg *mem_reg = &iser_task->rdma_reg[cmd_dir];
struct fast_reg_descriptor *desc = NULL;
struct ib_sge data_sge;
int err, aligned_len;
unsigned long flags;
aligned_len = iser_data_buf_aligned_len(mem, ibdev);
if (aligned_len != mem->dma_nents) {
err = fall_to_bounce_buf(iser_task, ibdev, mem,
&iser_task->data_copy[cmd_dir],
err = fall_to_bounce_buf(iser_task, mem,
cmd_dir, aligned_len);
if (err) {
iser_err("failed to allocate bounce buffer\n");
return err;
}
mem = &iser_task->data_copy[cmd_dir];
}
if (mem->dma_nents != 1 ||
scsi_get_prot_op(iser_task->sc) != SCSI_PROT_NORMAL) {
spin_lock_irqsave(&ib_conn->lock, flags);
desc = list_first_entry(&ib_conn->fastreg.pool,
struct fast_reg_descriptor, list);
list_del(&desc->list);
spin_unlock_irqrestore(&ib_conn->lock, flags);
regd_buf->reg.mem_h = desc;
desc = iser_reg_desc_get(ib_conn);
mem_reg->mem_h = desc;
}
err = iser_fast_reg_mr(iser_task, regd_buf, mem,
ISER_DATA_KEY_VALID, &data_sge);
err = iser_fast_reg_mr(iser_task, mem, desc,
ISER_DATA_KEY_VALID, mem_reg);
if (err)
goto err_reg;
if (scsi_get_prot_op(iser_task->sc) != SCSI_PROT_NORMAL) {
struct ib_sge prot_sge, sig_sge;
struct iser_mem_reg prot_reg;
memset(&prot_sge, 0, sizeof(prot_sge));
memset(&prot_reg, 0, sizeof(prot_reg));
if (scsi_prot_sg_count(iser_task->sc)) {
mem = &iser_task->prot[cmd_dir];
aligned_len = iser_data_buf_aligned_len(mem, ibdev);
if (aligned_len != mem->dma_nents) {
err = fall_to_bounce_buf(iser_task, ibdev, mem,
&iser_task->prot_copy[cmd_dir],
err = fall_to_bounce_buf(iser_task, mem,
cmd_dir, aligned_len);
if (err) {
iser_err("failed to allocate bounce buffer\n");
return err;
}
mem = &iser_task->prot_copy[cmd_dir];
}
err = iser_fast_reg_mr(iser_task, regd_buf, mem,
ISER_PROT_KEY_VALID, &prot_sge);
err = iser_fast_reg_mr(iser_task, mem, desc,
ISER_PROT_KEY_VALID, &prot_reg);
if (err)
goto err_reg;
}
err = iser_reg_sig_mr(iser_task, desc, &data_sge,
&prot_sge, &sig_sge);
err = iser_reg_sig_mr(iser_task, desc, mem_reg,
&prot_reg, mem_reg);
if (err) {
iser_err("Failed to register signature mr\n");
return err;
}
desc->reg_indicators |= ISER_FASTREG_PROTECTED;
regd_buf->reg.lkey = sig_sge.lkey;
regd_buf->reg.rkey = desc->pi_ctx->sig_mr->rkey;
regd_buf->reg.va = sig_sge.addr;
regd_buf->reg.len = sig_sge.length;
} else {
if (desc)
regd_buf->reg.rkey = desc->data_mr->rkey;
else
regd_buf->reg.rkey = device->mr->rkey;
regd_buf->reg.lkey = data_sge.lkey;
regd_buf->reg.va = data_sge.addr;
regd_buf->reg.len = data_sge.length;
}
return 0;
err_reg:
if (desc) {
spin_lock_irqsave(&ib_conn->lock, flags);
list_add_tail(&desc->list, &ib_conn->fastreg.pool);
spin_unlock_irqrestore(&ib_conn->lock, flags);
}
if (desc)
iser_reg_desc_put(ib_conn, desc);
return err;
}

220
drivers/infiniband/ulp/iser/iser_verbs.c
View File

@ -273,6 +273,65 @@ void iser_free_fmr_pool(struct ib_conn *ib_conn)
ib_conn->fmr.page_vec = NULL;
}
static int
iser_alloc_pi_ctx(struct ib_device *ib_device, struct ib_pd *pd,
struct fast_reg_descriptor *desc)
{
struct iser_pi_context *pi_ctx = NULL;
struct ib_mr_init_attr mr_init_attr = {.max_reg_descriptors = 2,
.flags = IB_MR_SIGNATURE_EN};
int ret = 0;
desc->pi_ctx = kzalloc(sizeof(*desc->pi_ctx), GFP_KERNEL);
if (!desc->pi_ctx)
return -ENOMEM;
pi_ctx = desc->pi_ctx;
pi_ctx->prot_frpl = ib_alloc_fast_reg_page_list(ib_device,
ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(pi_ctx->prot_frpl)) {
ret = PTR_ERR(pi_ctx->prot_frpl);
goto prot_frpl_failure;
}
pi_ctx->prot_mr = ib_alloc_fast_reg_mr(pd,
ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(pi_ctx->prot_mr)) {
ret = PTR_ERR(pi_ctx->prot_mr);
goto prot_mr_failure;
}
desc->reg_indicators |= ISER_PROT_KEY_VALID;
pi_ctx->sig_mr = ib_create_mr(pd, &mr_init_attr);
if (IS_ERR(pi_ctx->sig_mr)) {
ret = PTR_ERR(pi_ctx->sig_mr);
goto sig_mr_failure;
}
desc->reg_indicators |= ISER_SIG_KEY_VALID;
desc->reg_indicators &= ~ISER_FASTREG_PROTECTED;
return 0;
sig_mr_failure:
ib_dereg_mr(desc->pi_ctx->prot_mr);
prot_mr_failure:
ib_free_fast_reg_page_list(desc->pi_ctx->prot_frpl);
prot_frpl_failure:
kfree(desc->pi_ctx);
return ret;
}
static void
iser_free_pi_ctx(struct iser_pi_context *pi_ctx)
{
ib_free_fast_reg_page_list(pi_ctx->prot_frpl);
ib_dereg_mr(pi_ctx->prot_mr);
ib_destroy_mr(pi_ctx->sig_mr);
kfree(pi_ctx);
}
static int
iser_create_fastreg_desc(struct ib_device *ib_device, struct ib_pd *pd,
bool pi_enable, struct fast_reg_descriptor *desc)
@ -297,59 +356,12 @@ iser_create_fastreg_desc(struct ib_device *ib_device, struct ib_pd *pd,
desc->reg_indicators |= ISER_DATA_KEY_VALID;
if (pi_enable) {
struct ib_mr_init_attr mr_init_attr = {0};
struct iser_pi_context *pi_ctx = NULL;
desc->pi_ctx = kzalloc(sizeof(*desc->pi_ctx), GFP_KERNEL);
if (!desc->pi_ctx) {
iser_err("Failed to allocate pi context\n");
ret = -ENOMEM;
ret = iser_alloc_pi_ctx(ib_device, pd, desc);
if (ret)
goto pi_ctx_alloc_failure;
}
pi_ctx = desc->pi_ctx;
pi_ctx->prot_frpl = ib_alloc_fast_reg_page_list(ib_device,
ISCSI_ISER_SG_TABLESIZE);
if (IS_ERR(pi_ctx->prot_frpl)) {
ret = PTR_ERR(pi_ctx->prot_frpl);
iser_err("Failed to allocate prot frpl ret=%d\n",
ret);
goto prot_frpl_failure;
}
pi_ctx->prot_mr = ib_alloc_fast_reg_mr(pd,
ISCSI_ISER_SG_TABLESIZE + 1);
if (IS_ERR(pi_ctx->prot_mr)) {
ret = PTR_ERR(pi_ctx->prot_mr);
iser_err("Failed to allocate prot frmr ret=%d\n",
ret);
goto prot_mr_failure;
}
desc->reg_indicators |= ISER_PROT_KEY_VALID;
mr_init_attr.max_reg_descriptors = 2;
mr_init_attr.flags |= IB_MR_SIGNATURE_EN;
pi_ctx->sig_mr = ib_create_mr(pd, &mr_init_attr);
if (IS_ERR(pi_ctx->sig_mr)) {
ret = PTR_ERR(pi_ctx->sig_mr);
iser_err("Failed to allocate signature enabled mr err=%d\n",
ret);
goto sig_mr_failure;
}
desc->reg_indicators |= ISER_SIG_KEY_VALID;
}
desc->reg_indicators &= ~ISER_FASTREG_PROTECTED;
iser_dbg("Create fr_desc %p page_list %p\n",
desc, desc->data_frpl->page_list);
return 0;
sig_mr_failure:
ib_dereg_mr(desc->pi_ctx->prot_mr);
prot_mr_failure:
ib_free_fast_reg_page_list(desc->pi_ctx->prot_frpl);
prot_frpl_failure:
kfree(desc->pi_ctx);
pi_ctx_alloc_failure:
ib_dereg_mr(desc->data_mr);
fast_reg_mr_failure:
@ -416,12 +428,8 @@ void iser_free_fastreg_pool(struct ib_conn *ib_conn)
list_del(&desc->list);
ib_free_fast_reg_page_list(desc->data_frpl);
ib_dereg_mr(desc->data_mr);
if (desc->pi_ctx) {
ib_free_fast_reg_page_list(desc->pi_ctx->prot_frpl);
ib_dereg_mr(desc->pi_ctx->prot_mr);
ib_destroy_mr(desc->pi_ctx->sig_mr);
kfree(desc->pi_ctx);
}
if (desc->pi_ctx)
iser_free_pi_ctx(desc->pi_ctx);
kfree(desc);
++i;
}
@ -721,7 +729,7 @@ static void iser_connect_error(struct rdma_cm_id *cma_id)
struct iser_conn *iser_conn;
iser_conn = (struct iser_conn *)cma_id->context;
iser_conn->state = ISER_CONN_DOWN;
iser_conn->state = ISER_CONN_TERMINATING;
}
/**
@ -992,93 +1000,6 @@ connect_failure:
return err;
}
/**
* iser_reg_page_vec - Register physical memory
*
* returns: 0 on success, errno code on failure
*/
int iser_reg_page_vec(struct ib_conn *ib_conn,
struct iser_page_vec *page_vec,
struct iser_mem_reg *mem_reg)
{
struct ib_pool_fmr *mem;
u64 io_addr;
u64 *page_list;
int status;
page_list = page_vec->pages;
io_addr = page_list[0];
mem = ib_fmr_pool_map_phys(ib_conn->fmr.pool,
page_list,
page_vec->length,
io_addr);
if (IS_ERR(mem)) {
status = (int)PTR_ERR(mem);
iser_err("ib_fmr_pool_map_phys failed: %d\n", status);
return status;
}
mem_reg->lkey = mem->fmr->lkey;
mem_reg->rkey = mem->fmr->rkey;
mem_reg->len = page_vec->length * SIZE_4K;
mem_reg->va = io_addr;
mem_reg->mem_h = (void *)mem;
mem_reg->va += page_vec->offset;
mem_reg->len = page_vec->data_size;
iser_dbg("PHYSICAL Mem.register, [PHYS p_array: 0x%p, sz: %d, "
"entry[0]: (0x%08lx,%ld)] -> "
"[lkey: 0x%08X mem_h: 0x%p va: 0x%08lX sz: %ld]\n",
page_vec, page_vec->length,
(unsigned long)page_vec->pages[0],
(unsigned long)page_vec->data_size,
(unsigned int)mem_reg->lkey, mem_reg->mem_h,
(unsigned long)mem_reg->va, (unsigned long)mem_reg->len);
return 0;
}
/**
* Unregister (previosuly registered using FMR) memory.
* If memory is non-FMR does nothing.
*/
void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir)
{
struct iser_mem_reg *reg = &iser_task->rdma_regd[cmd_dir].reg;
int ret;
if (!reg->mem_h)
return;
iser_dbg("PHYSICAL Mem.Unregister mem_h %p\n",reg->mem_h);
ret = ib_fmr_pool_unmap((struct ib_pool_fmr *)reg->mem_h);
if (ret)
iser_err("ib_fmr_pool_unmap failed %d\n", ret);
reg->mem_h = NULL;
}
void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir)
{
struct iser_mem_reg *reg = &iser_task->rdma_regd[cmd_dir].reg;
struct iser_conn *iser_conn = iser_task->iser_conn;
struct ib_conn *ib_conn = &iser_conn->ib_conn;
struct fast_reg_descriptor *desc = reg->mem_h;
if (!desc)
return;
reg->mem_h = NULL;
spin_lock_bh(&ib_conn->lock);
list_add_tail(&desc->list, &ib_conn->fastreg.pool);
spin_unlock_bh(&ib_conn->lock);
}
int iser_post_recvl(struct iser_conn *iser_conn)
{
struct ib_recv_wr rx_wr, *rx_wr_failed;
@ -1210,6 +1131,9 @@ iser_handle_comp_error(struct ib_conn *ib_conn,
iscsi_conn_failure(iser_conn->iscsi_conn,
ISCSI_ERR_CONN_FAILED);
if (wc->wr_id == ISER_FASTREG_LI_WRID)
return;
if (is_iser_tx_desc(iser_conn, wr_id)) {
struct iser_tx_desc *desc = wr_id;
@ -1254,13 +1178,11 @@ static void iser_handle_wc(struct ib_wc *wc)
else
iser_dbg("flush error: wr id %llx\n", wc->wr_id);
if (wc->wr_id != ISER_FASTREG_LI_WRID &&
wc->wr_id != ISER_BEACON_WRID)
iser_handle_comp_error(ib_conn, wc);
/* complete in case all flush errors were consumed */
if (wc->wr_id == ISER_BEACON_WRID)
/* all flush errors were consumed */
complete(&ib_conn->flush_comp);
else
iser_handle_comp_error(ib_conn, wc);
}
}
@ -1306,7 +1228,7 @@ static void iser_cq_callback(struct ib_cq *cq, void *cq_context)
u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
enum iser_data_dir cmd_dir, sector_t *sector)
{
struct iser_mem_reg *reg = &iser_task->rdma_regd[cmd_dir].reg;
struct iser_mem_reg *reg = &iser_task->rdma_reg[cmd_dir];
struct fast_reg_descriptor *desc = reg->mem_h;
unsigned long sector_size = iser_task->sc->device->sector_size;
struct ib_mr_status mr_status;

9
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -40,6 +40,7 @@
#include <linux/parser.h>
#include <linux/random.h>
#include <linux/jiffies.h>
#include <rdma/ib_cache.h>
#include <linux/atomic.h>
@ -265,10 +266,10 @@ static int srp_init_qp(struct srp_target_port *target,
if (!attr)
return -ENOMEM;
ret = ib_find_pkey(target->srp_host->srp_dev->dev,
target->srp_host->port,
be16_to_cpu(target->pkey),
&attr->pkey_index);
ret = ib_find_cached_pkey(target->srp_host->srp_dev->dev,
target->srp_host->port,
be16_to_cpu(target->pkey),
&attr->pkey_index);
if (ret)
goto out;

188
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -207,7 +207,7 @@ static void srpt_event_handler(struct ib_event_handler *handler,
}
break;
default:
printk(KERN_ERR "received unrecognized IB event %d\n",
pr_err("received unrecognized IB event %d\n",
event->event);
break;
}
@ -218,7 +218,7 @@ static void srpt_event_handler(struct ib_event_handler *handler,
*/
static void srpt_srq_event(struct ib_event *event, void *ctx)
{
printk(KERN_INFO "SRQ event %d\n", event->event);
pr_info("SRQ event %d\n", event->event);
}
/**
@ -242,8 +242,7 @@ static void srpt_qp_event(struct ib_event *event, struct srpt_rdma_ch *ch)
ch->sess_name, srpt_get_ch_state(ch));
break;
default:
printk(KERN_ERR "received unrecognized IB QP event %d\n",
event->event);
pr_err("received unrecognized IB QP event %d\n", event->event);
break;
}
}
@ -602,7 +601,7 @@ static void srpt_unregister_mad_agent(struct srpt_device *sdev)
sport = &sdev->port[i - 1];
WARN_ON(sport->port != i);
if (ib_modify_port(sdev->device, i, 0, &port_modify) < 0)
printk(KERN_ERR "disabling MAD processing failed.\n");
pr_err("disabling MAD processing failed.\n");
if (sport->mad_agent) {
ib_unregister_mad_agent(sport->mad_agent);
sport->mad_agent = NULL;
@ -810,7 +809,7 @@ static int srpt_post_send(struct srpt_rdma_ch *ch,
ret = -ENOMEM;
if (unlikely(atomic_dec_return(&ch->sq_wr_avail) < 0)) {
printk(KERN_WARNING "IB send queue full (needed 1)\n");
pr_warn("IB send queue full (needed 1)\n");
goto out;
}
@ -912,7 +911,7 @@ static int srpt_get_desc_tbl(struct srpt_send_ioctx *ioctx,
if (ioctx->n_rbuf >
(srp_cmd->data_out_desc_cnt + srp_cmd->data_in_desc_cnt)) {
printk(KERN_ERR "received unsupported SRP_CMD request"
pr_err("received unsupported SRP_CMD request"
" type (%u out + %u in != %u / %zu)\n",
srp_cmd->data_out_desc_cnt,
srp_cmd->data_in_desc_cnt,
@ -1432,7 +1431,7 @@ static void srpt_handle_send_comp(struct srpt_rdma_ch *ch,
srpt_unmap_sg_to_ib_sge(ch, ioctx);
transport_generic_free_cmd(&ioctx->cmd, 0);
} else {
printk(KERN_ERR "IB completion has been received too late for"
pr_err("IB completion has been received too late for"
" wr_id = %u.\n", ioctx->ioctx.index);
}
}
@ -1457,7 +1456,7 @@ static void srpt_handle_rdma_comp(struct srpt_rdma_ch *ch,
SRPT_STATE_DATA_IN))
target_execute_cmd(&ioctx->cmd);
else
printk(KERN_ERR "%s[%d]: wrong state = %d\n", __func__,
pr_err("%s[%d]: wrong state = %d\n", __func__,
__LINE__, srpt_get_cmd_state(ioctx));
} else if (opcode == SRPT_RDMA_ABORT) {
ioctx->rdma_aborted = true;
@ -1481,7 +1480,7 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch,
switch (opcode) {
case SRPT_RDMA_READ_LAST:
if (ioctx->n_rdma <= 0) {
printk(KERN_ERR "Received invalid RDMA read"
pr_err("Received invalid RDMA read"
" error completion with idx %d\n",
ioctx->ioctx.index);
break;
@ -1490,14 +1489,13 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch,
if (state == SRPT_STATE_NEED_DATA)
srpt_abort_cmd(ioctx);
else
printk(KERN_ERR "%s[%d]: wrong state = %d\n",
pr_err("%s[%d]: wrong state = %d\n",
__func__, __LINE__, state);
break;
case SRPT_RDMA_WRITE_LAST:
break;
default:
printk(KERN_ERR "%s[%d]: opcode = %u\n", __func__,
__LINE__, opcode);
pr_err("%s[%d]: opcode = %u\n", __func__, __LINE__, opcode);
break;
}
}
@ -1549,8 +1547,8 @@ static int srpt_build_cmd_rsp(struct srpt_rdma_ch *ch,
BUILD_BUG_ON(MIN_MAX_RSP_SIZE <= sizeof(*srp_rsp));
max_sense_len = ch->max_ti_iu_len - sizeof(*srp_rsp);
if (sense_data_len > max_sense_len) {
printk(KERN_WARNING "truncated sense data from %d to %d"
" bytes\n", sense_data_len, max_sense_len);
pr_warn("truncated sense data from %d to %d"
" bytes\n", sense_data_len, max_sense_len);
sense_data_len = max_sense_len;
}
@ -1628,8 +1626,8 @@ static uint64_t srpt_unpack_lun(const uint8_t *lun, int len)
int addressing_method;
if (unlikely(len < 2)) {
printk(KERN_ERR "Illegal LUN length %d, expected 2 bytes or "
"more", len);
pr_err("Illegal LUN length %d, expected 2 bytes or more\n",
len);
goto out;
}
@ -1663,7 +1661,7 @@ static uint64_t srpt_unpack_lun(const uint8_t *lun, int len)
case SCSI_LUN_ADDR_METHOD_EXTENDED_LUN:
default:
printk(KERN_ERR "Unimplemented LUN addressing method %u",
pr_err("Unimplemented LUN addressing method %u\n",
addressing_method);
break;
}
@ -1672,8 +1670,7 @@ out:
return res;
out_err:
printk(KERN_ERR "Support for multi-level LUNs has not yet been"
" implemented");
pr_err("Support for multi-level LUNs has not yet been implemented\n");
goto out;
}
@ -1723,7 +1720,7 @@ static int srpt_handle_cmd(struct srpt_rdma_ch *ch,
}
if (srpt_get_desc_tbl(send_ioctx, srp_cmd, &dir, &data_len)) {
printk(KERN_ERR "0x%llx: parsing SRP descriptor table failed.\n",
pr_err("0x%llx: parsing SRP descriptor table failed.\n",
srp_cmd->tag);
ret = TCM_INVALID_CDB_FIELD;
goto send_sense;
@ -1912,7 +1909,7 @@ static void srpt_handle_new_iu(struct srpt_rdma_ch *ch,
srpt_handle_tsk_mgmt(ch, recv_ioctx, send_ioctx);
break;
case SRP_I_LOGOUT:
printk(KERN_ERR "Not yet implemented: SRP_I_LOGOUT\n");
pr_err("Not yet implemented: SRP_I_LOGOUT\n");
break;
case SRP_CRED_RSP:
pr_debug("received SRP_CRED_RSP\n");
@ -1921,10 +1918,10 @@ static void srpt_handle_new_iu(struct srpt_rdma_ch *ch,
pr_debug("received SRP_AER_RSP\n");
break;
case SRP_RSP:
printk(KERN_ERR "Received SRP_RSP\n");
pr_err("Received SRP_RSP\n");
break;
default:
printk(KERN_ERR "received IU with unknown opcode 0x%x\n",
pr_err("received IU with unknown opcode 0x%x\n",
srp_cmd->opcode);
break;
}
@ -1948,12 +1945,12 @@ static void srpt_process_rcv_completion(struct ib_cq *cq,
req_lim = atomic_dec_return(&ch->req_lim);
if (unlikely(req_lim < 0))
printk(KERN_ERR "req_lim = %d < 0\n", req_lim);
pr_err("req_lim = %d < 0\n", req_lim);
ioctx = sdev->ioctx_ring[index];
srpt_handle_new_iu(ch, ioctx, NULL);
} else {
printk(KERN_INFO "receiving failed for idx %u with status %d\n",
index, wc->status);
pr_info("receiving failed for idx %u with status %d\n",
index, wc->status);
}
}
@ -1993,12 +1990,12 @@ static void srpt_process_send_completion(struct ib_cq *cq,
}
} else {
if (opcode == SRPT_SEND) {
printk(KERN_INFO "sending response for idx %u failed"
" with status %d\n", index, wc->status);
pr_info("sending response for idx %u failed"
" with status %d\n", index, wc->status);
srpt_handle_send_err_comp(ch, wc->wr_id);
} else if (opcode != SRPT_RDMA_MID) {
printk(KERN_INFO "RDMA t %d for idx %u failed with"
" status %d", opcode, index, wc->status);
pr_info("RDMA t %d for idx %u failed with"
" status %d\n", opcode, index, wc->status);
srpt_handle_rdma_err_comp(ch, send_ioctx, opcode);
}
}
@ -2062,15 +2059,15 @@ static int srpt_compl_thread(void *arg)
ch = arg;
BUG_ON(!ch);
printk(KERN_INFO "Session %s: kernel thread %s (PID %d) started\n",
ch->sess_name, ch->thread->comm, current->pid);
pr_info("Session %s: kernel thread %s (PID %d) started\n",
ch->sess_name, ch->thread->comm, current->pid);
while (!kthread_should_stop()) {
wait_event_interruptible(ch->wait_queue,
(srpt_process_completion(ch->cq, ch),
kthread_should_stop()));
}
printk(KERN_INFO "Session %s: kernel thread %s (PID %d) stopped\n",
ch->sess_name, ch->thread->comm, current->pid);
pr_info("Session %s: kernel thread %s (PID %d) stopped\n",
ch->sess_name, ch->thread->comm, current->pid);
return 0;
}
@ -2097,7 +2094,7 @@ retry:
ch->rq_size + srp_sq_size, 0);
if (IS_ERR(ch->cq)) {
ret = PTR_ERR(ch->cq);
printk(KERN_ERR "failed to create CQ cqe= %d ret= %d\n",
pr_err("failed to create CQ cqe= %d ret= %d\n",
ch->rq_size + srp_sq_size, ret);
goto out;
}
@ -2123,7 +2120,7 @@ retry:
goto retry;
}
}
printk(KERN_ERR "failed to create_qp ret= %d\n", ret);
pr_err("failed to create_qp ret= %d\n", ret);
goto err_destroy_cq;
}
@ -2143,7 +2140,7 @@ retry:
ch->thread = kthread_run(srpt_compl_thread, ch, "ib_srpt_compl");
if (IS_ERR(ch->thread)) {
printk(KERN_ERR "failed to create kernel thread %ld\n",
pr_err("failed to create kernel thread %ld\n",
PTR_ERR(ch->thread));
ch->thread = NULL;
goto err_destroy_qp;
@ -2204,7 +2201,7 @@ static void __srpt_close_ch(struct srpt_rdma_ch *ch)
/* fall through */
case CH_LIVE:
if (ib_send_cm_dreq(ch->cm_id, NULL, 0) < 0)
printk(KERN_ERR "sending CM DREQ failed.\n");
pr_err("sending CM DREQ failed.\n");
break;
case CH_DISCONNECTING:
break;
@ -2291,7 +2288,7 @@ static void srpt_drain_channel(struct ib_cm_id *cm_id)
ret = srpt_ch_qp_err(ch);
if (ret < 0)
printk(KERN_ERR "Setting queue pair in error state"
pr_err("Setting queue pair in error state"
" failed: %d\n", ret);
}
}
@ -2435,17 +2432,17 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
it_iu_len = be32_to_cpu(req->req_it_iu_len);
printk(KERN_INFO "Received SRP_LOGIN_REQ with i_port_id 0x%llx:0x%llx,"
" t_port_id 0x%llx:0x%llx and it_iu_len %d on port %d"
" (guid=0x%llx:0x%llx)\n",
be64_to_cpu(*(__be64 *)&req->initiator_port_id[0]),
be64_to_cpu(*(__be64 *)&req->initiator_port_id[8]),
be64_to_cpu(*(__be64 *)&req->target_port_id[0]),
be64_to_cpu(*(__be64 *)&req->target_port_id[8]),
it_iu_len,
param->port,
be64_to_cpu(*(__be64 *)&sdev->port[param->port - 1].gid.raw[0]),
be64_to_cpu(*(__be64 *)&sdev->port[param->port - 1].gid.raw[8]));
pr_info("Received SRP_LOGIN_REQ with i_port_id 0x%llx:0x%llx,"
" t_port_id 0x%llx:0x%llx and it_iu_len %d on port %d"
" (guid=0x%llx:0x%llx)\n",
be64_to_cpu(*(__be64 *)&req->initiator_port_id[0]),
be64_to_cpu(*(__be64 *)&req->initiator_port_id[8]),
be64_to_cpu(*(__be64 *)&req->target_port_id[0]),
be64_to_cpu(*(__be64 *)&req->target_port_id[8]),
it_iu_len,
param->port,
be64_to_cpu(*(__be64 *)&sdev->port[param->port - 1].gid.raw[0]),
be64_to_cpu(*(__be64 *)&sdev->port[param->port - 1].gid.raw[8]));
rsp = kzalloc(sizeof *rsp, GFP_KERNEL);
rej = kzalloc(sizeof *rej, GFP_KERNEL);
@ -2460,7 +2457,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_REQ_IT_IU_LENGTH_TOO_LARGE);
ret = -EINVAL;
printk(KERN_ERR "rejected SRP_LOGIN_REQ because its"
pr_err("rejected SRP_LOGIN_REQ because its"
" length (%d bytes) is out of range (%d .. %d)\n",
it_iu_len, 64, srp_max_req_size);
goto reject;
@ -2470,7 +2467,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
ret = -EINVAL;
printk(KERN_ERR "rejected SRP_LOGIN_REQ because the target port"
pr_err("rejected SRP_LOGIN_REQ because the target port"
" has not yet been enabled\n");
goto reject;
}
@ -2516,7 +2513,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_UNABLE_ASSOCIATE_CHANNEL);
ret = -ENOMEM;
printk(KERN_ERR "rejected SRP_LOGIN_REQ because it"
pr_err("rejected SRP_LOGIN_REQ because it"
" has an invalid target port identifier.\n");
goto reject;
}
@ -2525,7 +2522,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
if (!ch) {
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
printk(KERN_ERR "rejected SRP_LOGIN_REQ because no memory.\n");
pr_err("rejected SRP_LOGIN_REQ because no memory.\n");
ret = -ENOMEM;
goto reject;
}
@ -2562,7 +2559,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
if (ret) {
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
printk(KERN_ERR "rejected SRP_LOGIN_REQ because creating"
pr_err("rejected SRP_LOGIN_REQ because creating"
" a new RDMA channel failed.\n");
goto free_ring;
}
@ -2571,7 +2568,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
if (ret) {
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_INSUFFICIENT_RESOURCES);
printk(KERN_ERR "rejected SRP_LOGIN_REQ because enabling"
pr_err("rejected SRP_LOGIN_REQ because enabling"
" RTR failed (error code = %d)\n", ret);
goto destroy_ib;
}
@ -2586,8 +2583,8 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
nacl = srpt_lookup_acl(sport, ch->i_port_id);
if (!nacl) {
printk(KERN_INFO "Rejected login because no ACL has been"
" configured yet for initiator %s.\n", ch->sess_name);
pr_info("Rejected login because no ACL has been"
" configured yet for initiator %s.\n", ch->sess_name);
rej->reason = __constant_cpu_to_be32(
SRP_LOGIN_REJ_CHANNEL_LIMIT_REACHED);
goto destroy_ib;
@ -2631,7 +2628,7 @@ static int srpt_cm_req_recv(struct ib_cm_id *cm_id,
ret = ib_send_cm_rep(cm_id, rep_param);
if (ret) {
printk(KERN_ERR "sending SRP_LOGIN_REQ response failed"
pr_err("sending SRP_LOGIN_REQ response failed"
" (error code = %d)\n", ret);
goto release_channel;
}
@ -2679,7 +2676,7 @@ out:
static void srpt_cm_rej_recv(struct ib_cm_id *cm_id)
{
printk(KERN_INFO "Received IB REJ for cm_id %p.\n", cm_id);
pr_info("Received IB REJ for cm_id %p.\n", cm_id);
srpt_drain_channel(cm_id);
}
@ -2714,13 +2711,13 @@ static void srpt_cm_rtu_recv(struct ib_cm_id *cm_id)
static void srpt_cm_timewait_exit(struct ib_cm_id *cm_id)
{
printk(KERN_INFO "Received IB TimeWait exit for cm_id %p.\n", cm_id);
pr_info("Received IB TimeWait exit for cm_id %p.\n", cm_id);
srpt_drain_channel(cm_id);
}
static void srpt_cm_rep_error(struct ib_cm_id *cm_id)
{
printk(KERN_INFO "Received IB REP error for cm_id %p.\n", cm_id);
pr_info("Received IB REP error for cm_id %p.\n", cm_id);
srpt_drain_channel(cm_id);
}
@ -2755,9 +2752,9 @@ static void srpt_cm_dreq_recv(struct ib_cm_id *cm_id)
if (send_drep) {
if (ib_send_cm_drep(ch->cm_id, NULL, 0) < 0)
printk(KERN_ERR "Sending IB DREP failed.\n");
printk(KERN_INFO "Received DREQ and sent DREP for session %s.\n",
ch->sess_name);
pr_err("Sending IB DREP failed.\n");
pr_info("Received DREQ and sent DREP for session %s.\n",
ch->sess_name);
}
}
@ -2766,8 +2763,7 @@ static void srpt_cm_dreq_recv(struct ib_cm_id *cm_id)
*/
static void srpt_cm_drep_recv(struct ib_cm_id *cm_id)
{
printk(KERN_INFO "Received InfiniBand DREP message for cm_id %p.\n",
cm_id);
pr_info("Received InfiniBand DREP message for cm_id %p.\n", cm_id);
srpt_drain_channel(cm_id);
}
@ -2811,14 +2807,13 @@ static int srpt_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
srpt_cm_rep_error(cm_id);
break;
case IB_CM_DREQ_ERROR:
printk(KERN_INFO "Received IB DREQ ERROR event.\n");
pr_info("Received IB DREQ ERROR event.\n");
break;
case IB_CM_MRA_RECEIVED:
printk(KERN_INFO "Received IB MRA event\n");
pr_info("Received IB MRA event\n");
break;
default:
printk(KERN_ERR "received unrecognized IB CM event %d\n",
event->event);
pr_err("received unrecognized IB CM event %d\n", event->event);
break;
}
@ -2848,8 +2843,8 @@ static int srpt_perform_rdmas(struct srpt_rdma_ch *ch,
ret = -ENOMEM;
sq_wr_avail = atomic_sub_return(n_rdma, &ch->sq_wr_avail);
if (sq_wr_avail < 0) {
printk(KERN_WARNING "IB send queue full (needed %d)\n",
n_rdma);
pr_warn("IB send queue full (needed %d)\n",
n_rdma);
goto out;
}
}
@ -2889,7 +2884,7 @@ static int srpt_perform_rdmas(struct srpt_rdma_ch *ch,
}
if (ret)
printk(KERN_ERR "%s[%d]: ib_post_send() returned %d for %d/%d",
pr_err("%s[%d]: ib_post_send() returned %d for %d/%d\n",
__func__, __LINE__, ret, i, n_rdma);
if (ret && i > 0) {
wr.num_sge = 0;
@ -2897,12 +2892,12 @@ static int srpt_perform_rdmas(struct srpt_rdma_ch *ch,
wr.send_flags = IB_SEND_SIGNALED;
while (ch->state == CH_LIVE &&
ib_post_send(ch->qp, &wr, &bad_wr) != 0) {
printk(KERN_INFO "Trying to abort failed RDMA transfer [%d]",
pr_info("Trying to abort failed RDMA transfer [%d]\n",
ioctx->ioctx.index);
msleep(1000);
}
while (ch->state != CH_RELEASING && !ioctx->rdma_aborted) {
printk(KERN_INFO "Waiting until RDMA abort finished [%d]",
pr_info("Waiting until RDMA abort finished [%d]\n",
ioctx->ioctx.index);
msleep(1000);
}
@ -2923,17 +2918,17 @@ static int srpt_xfer_data(struct srpt_rdma_ch *ch,
ret = srpt_map_sg_to_ib_sge(ch, ioctx);
if (ret) {
printk(KERN_ERR "%s[%d] ret=%d\n", __func__, __LINE__, ret);
pr_err("%s[%d] ret=%d\n", __func__, __LINE__, ret);
goto out;
}
ret = srpt_perform_rdmas(ch, ioctx);
if (ret) {
if (ret == -EAGAIN || ret == -ENOMEM)
printk(KERN_INFO "%s[%d] queue full -- ret=%d\n",
__func__, __LINE__, ret);
pr_info("%s[%d] queue full -- ret=%d\n",
__func__, __LINE__, ret);
else
printk(KERN_ERR "%s[%d] fatal error -- ret=%d\n",
pr_err("%s[%d] fatal error -- ret=%d\n",
__func__, __LINE__, ret);
goto out_unmap;
}
@ -3058,7 +3053,7 @@ static void srpt_queue_response(struct se_cmd *cmd)
!ioctx->queue_status_only) {
ret = srpt_xfer_data(ch, ioctx);
if (ret) {
printk(KERN_ERR "xfer_data failed for tag %llu\n",
pr_err("xfer_data failed for tag %llu\n",
ioctx->tag);
return;
}
@ -3075,7 +3070,7 @@ static void srpt_queue_response(struct se_cmd *cmd)
}
ret = srpt_post_send(ch, ioctx, resp_len);
if (ret) {
printk(KERN_ERR "sending cmd response failed for tag %llu\n",
pr_err("sending cmd response failed for tag %llu\n",
ioctx->tag);
srpt_unmap_sg_to_ib_sge(ch, ioctx);
srpt_set_cmd_state(ioctx, SRPT_STATE_DONE);
@ -3154,7 +3149,7 @@ static int srpt_release_sdev(struct srpt_device *sdev)
res = wait_event_interruptible(sdev->ch_releaseQ,
srpt_ch_list_empty(sdev));
if (res)
printk(KERN_ERR "%s: interrupted.\n", __func__);
pr_err("%s: interrupted.\n", __func__);
return 0;
}
@ -3293,7 +3288,7 @@ static void srpt_add_one(struct ib_device *device)
spin_lock_init(&sport->port_acl_lock);
if (srpt_refresh_port(sport)) {
printk(KERN_ERR "MAD registration failed for %s-%d.\n",
pr_err("MAD registration failed for %s-%d.\n",
srpt_sdev_name(sdev), i);
goto err_ring;
}
@ -3330,7 +3325,7 @@ free_dev:
kfree(sdev);
err:
sdev = NULL;
printk(KERN_INFO "%s(%s) failed.\n", __func__, device->name);
pr_info("%s(%s) failed.\n", __func__, device->name);
goto out;
}
@ -3344,8 +3339,7 @@ static void srpt_remove_one(struct ib_device *device)
sdev = ib_get_client_data(device, &srpt_client);
if (!sdev) {
printk(KERN_INFO "%s(%s): nothing to do.\n", __func__,
device->name);
pr_info("%s(%s): nothing to do.\n", __func__, device->name);
return;
}
@ -3464,7 +3458,7 @@ static struct se_node_acl *srpt_alloc_fabric_acl(struct se_portal_group *se_tpg)
nacl = kzalloc(sizeof(struct srpt_node_acl), GFP_KERNEL);
if (!nacl) {
printk(KERN_ERR "Unable to allocate struct srpt_node_acl\n");
pr_err("Unable to allocate struct srpt_node_acl\n");
return NULL;
}
@ -3615,7 +3609,7 @@ static struct se_node_acl *srpt_make_nodeacl(struct se_portal_group *tpg,
u8 i_port_id[16];
if (srpt_parse_i_port_id(i_port_id, name) < 0) {
printk(KERN_ERR "invalid initiator port ID %s\n", name);
pr_err("invalid initiator port ID %s\n", name);
ret = -EINVAL;
goto err;
}
@ -3816,12 +3810,12 @@ static ssize_t srpt_tpg_store_enable(
ret = kstrtoul(page, 0, &tmp);
if (ret < 0) {
printk(KERN_ERR "Unable to extract srpt_tpg_store_enable\n");
pr_err("Unable to extract srpt_tpg_store_enable\n");
return -EINVAL;
}
if ((tmp != 0) && (tmp != 1)) {
printk(KERN_ERR "Illegal value for srpt_tpg_store_enable: %lu\n", tmp);
pr_err("Illegal value for srpt_tpg_store_enable: %lu\n", tmp);
return -EINVAL;
}
if (tmp == 1)
@ -3980,7 +3974,7 @@ static int __init srpt_init_module(void)
ret = -EINVAL;
if (srp_max_req_size < MIN_MAX_REQ_SIZE) {
printk(KERN_ERR "invalid value %d for kernel module parameter"
pr_err("invalid value %d for kernel module parameter"
" srp_max_req_size -- must be at least %d.\n",
srp_max_req_size, MIN_MAX_REQ_SIZE);
goto out;
@ -3988,7 +3982,7 @@ static int __init srpt_init_module(void)
if (srpt_srq_size < MIN_SRPT_SRQ_SIZE
|| srpt_srq_size > MAX_SRPT_SRQ_SIZE) {
printk(KERN_ERR "invalid value %d for kernel module parameter"
pr_err("invalid value %d for kernel module parameter"
" srpt_srq_size -- must be in the range [%d..%d].\n",
srpt_srq_size, MIN_SRPT_SRQ_SIZE, MAX_SRPT_SRQ_SIZE);
goto out;
@ -3996,7 +3990,7 @@ static int __init srpt_init_module(void)
srpt_target = target_fabric_configfs_init(THIS_MODULE, "srpt");
if (IS_ERR(srpt_target)) {
printk(KERN_ERR "couldn't register\n");
pr_err("couldn't register\n");
ret = PTR_ERR(srpt_target);
goto out;
}
@ -4018,13 +4012,13 @@ static int __init srpt_init_module(void)
ret = target_fabric_configfs_register(srpt_target);
if (ret < 0) {
printk(KERN_ERR "couldn't register\n");
pr_err("couldn't register\n");
goto out_free_target;
}
ret = ib_register_client(&srpt_client);
if (ret) {
printk(KERN_ERR "couldn't register IB client\n");
pr_err("couldn't register IB client\n");
goto out_unregister_target;
}

42
drivers/net/ethernet/mellanox/mlx4/cmd.c
View File

@ -939,21 +939,34 @@ static int mlx4_MAD_IFC_wrapper(struct mlx4_dev *dev, int slave,
return err;
}
if (smp->attr_id == IB_SMP_ATTR_GUID_INFO) {
/* compute slave's gid block */
smp->attr_mod = cpu_to_be32(slave / 8);
/* execute cmd */
err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
vhcr->in_modifier, opcode_modifier,
vhcr->op, MLX4_CMD_TIME_CLASS_C, MLX4_CMD_NATIVE);
if (!err) {
/* if needed, move slave gid to index 0 */
if (slave % 8)
memcpy(outsmp->data,
outsmp->data + (slave % 8) * 8, 8);
/* delete all other gids */
memset(outsmp->data + 8, 0, 56);
__be64 guid = mlx4_get_admin_guid(dev, slave,
port);
/* set the PF admin guid to the FW/HW burned
* GUID, if it wasn't yet set
*/
if (slave == 0 && guid == 0) {
smp->attr_mod = 0;
err = mlx4_cmd_box(dev,
inbox->dma,
outbox->dma,
vhcr->in_modifier,
opcode_modifier,
vhcr->op,
MLX4_CMD_TIME_CLASS_C,
MLX4_CMD_NATIVE);
if (err)
return err;
mlx4_set_admin_guid(dev,
*(__be64 *)outsmp->
data, slave, port);
} else {
memcpy(outsmp->data, &guid, 8);
}
return err;
/* clean all other gids */
memset(outsmp->data + 8, 0, 56);
return 0;
}
if (smp->attr_id == IB_SMP_ATTR_NODE_INFO) {
err = mlx4_cmd_box(dev, inbox->dma, outbox->dma,
@ -2350,6 +2363,7 @@ int mlx4_multi_func_init(struct mlx4_dev *dev)
oper_vport->qos_vport = MLX4_VPP_DEFAULT_VPORT;
vf_oper->vport[port].vlan_idx = NO_INDX;
vf_oper->vport[port].mac_idx = NO_INDX;
mlx4_set_random_admin_guid(dev, i, port);
}
spin_lock_init(&s_state->lock);
}

2
drivers/net/ethernet/mellanox/mlx4/eq.c
View File

@ -702,6 +702,8 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
priv->mfunc.master.slave_state[flr_slave].is_slave_going_down = 1;
}
spin_unlock_irqrestore(&priv->mfunc.master.slave_state_lock, flags);
mlx4_dispatch_event(dev, MLX4_DEV_EVENT_SLAVE_SHUTDOWN,
flr_slave);
queue_work(priv->mfunc.master.comm_wq,
&priv->mfunc.master.slave_flr_event_work);
break;

31
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -2260,6 +2260,37 @@ void mlx4_counter_free(struct mlx4_dev *dev, u32 idx)
}
EXPORT_SYMBOL_GPL(mlx4_counter_free);
void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry, int port)
{
struct mlx4_priv *priv = mlx4_priv(dev);
priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
}
EXPORT_SYMBOL_GPL(mlx4_set_admin_guid);
__be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port)
{
struct mlx4_priv *priv = mlx4_priv(dev);
return priv->mfunc.master.vf_admin[entry].vport[port].guid;
}
EXPORT_SYMBOL_GPL(mlx4_get_admin_guid);
void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port)
{
struct mlx4_priv *priv = mlx4_priv(dev);
__be64 guid;
/* hw GUID */
if (entry == 0)
return;
get_random_bytes((char *)&guid, sizeof(guid));
guid &= ~(cpu_to_be64(1ULL << 56));
guid |= cpu_to_be64(1ULL << 57);
priv->mfunc.master.vf_admin[entry].vport[port].guid = guid;
}
static int mlx4_setup_hca(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);

1
drivers/net/ethernet/mellanox/mlx4/mlx4.h
View File

@ -499,6 +499,7 @@ struct mlx4_vport_state {
bool spoofchk;
u32 link_state;
u8 qos_vport;
__be64 guid;
};
struct mlx4_vf_admin_state {

10
drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
View File

@ -211,26 +211,28 @@ static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr)
return 0;
}
#define MLX5_U64_4K_PAGE_MASK ((~(u64)0U) << PAGE_SHIFT)
static void free_4k(struct mlx5_core_dev *dev, u64 addr)
{
struct fw_page *fwp;
int n;
fwp = find_fw_page(dev, addr & PAGE_MASK);
fwp = find_fw_page(dev, addr & MLX5_U64_4K_PAGE_MASK);
if (!fwp) {
mlx5_core_warn(dev, "page not found\n");
return;
}
n = (addr & ~PAGE_MASK) >> MLX5_ADAPTER_PAGE_SHIFT;
n = (addr & ~MLX5_U64_4K_PAGE_MASK) >> MLX5_ADAPTER_PAGE_SHIFT;
fwp->free_count++;
set_bit(n, &fwp->bitmask);
if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) {
rb_erase(&fwp->rb_node, &dev->priv.page_root);
if (fwp->free_count != 1)
list_del(&fwp->list);
dma_unmap_page(&dev->pdev->dev, addr & PAGE_MASK, PAGE_SIZE,
DMA_BIDIRECTIONAL);
dma_unmap_page(&dev->pdev->dev, addr & MLX5_U64_4K_PAGE_MASK,
PAGE_SIZE, DMA_BIDIRECTIONAL);
__free_page(fwp->page);
kfree(fwp);
} else if (fwp->free_count == 1) {

4
include/linux/mlx4/device.h
View File

@ -1345,6 +1345,10 @@ int mlx4_wol_write(struct mlx4_dev *dev, u64 config, int port);
int mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx);
void mlx4_counter_free(struct mlx4_dev *dev, u32 idx);
void mlx4_set_admin_guid(struct mlx4_dev *dev, __be64 guid, int entry,
int port);
__be64 mlx4_get_admin_guid(struct mlx4_dev *dev, int entry, int port);
void mlx4_set_random_admin_guid(struct mlx4_dev *dev, int entry, int port);
int mlx4_flow_attach(struct mlx4_dev *dev,
struct mlx4_net_trans_rule *rule, u64 *reg_id);
int mlx4_flow_detach(struct mlx4_dev *dev, u64 reg_id);