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Kirill Smelkov
linux
Commits
321aebb8
Commit
321aebb8
authored
May 12, 2016
by
Doug Ledford
Browse files
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Plain Diff
Merge branches 'mlx5-1' and 'srp-1' into k.o/for-4.7
parents
80835cba
3849e44d
Changes
2
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Showing
2 changed files
with
33 additions
and
20 deletions
+33
-20
drivers/infiniband/ulp/srp/ib_srp.c
drivers/infiniband/ulp/srp/ib_srp.c
+32
-20
drivers/infiniband/ulp/srp/ib_srp.h
drivers/infiniband/ulp/srp/ib_srp.h
+1
-0
No files found.
drivers/infiniband/ulp/srp/ib_srp.c
View file @
321aebb8
...
...
@@ -316,7 +316,7 @@ static struct ib_fmr_pool *srp_alloc_fmr_pool(struct srp_target_port *target)
struct
ib_fmr_pool_param
fmr_param
;
memset
(
&
fmr_param
,
0
,
sizeof
(
fmr_param
));
fmr_param
.
pool_size
=
target
->
scsi_host
->
can_queu
e
;
fmr_param
.
pool_size
=
target
->
mr_pool_siz
e
;
fmr_param
.
dirty_watermark
=
fmr_param
.
pool_size
/
4
;
fmr_param
.
cache
=
1
;
fmr_param
.
max_pages_per_fmr
=
dev
->
max_pages_per_mr
;
...
...
@@ -441,8 +441,7 @@ static struct srp_fr_pool *srp_alloc_fr_pool(struct srp_target_port *target)
{
struct
srp_device
*
dev
=
target
->
srp_host
->
srp_dev
;
return
srp_create_fr_pool
(
dev
->
dev
,
dev
->
pd
,
target
->
scsi_host
->
can_queue
,
return
srp_create_fr_pool
(
dev
->
dev
,
dev
->
pd
,
target
->
mr_pool_size
,
dev
->
max_pages_per_mr
);
}
...
...
@@ -1112,7 +1111,7 @@ static struct scsi_cmnd *srp_claim_req(struct srp_rdma_ch *ch,
}
/**
* srp_free_req() - Unmap data and ad
d request to the free request list
.
* srp_free_req() - Unmap data and ad
just ch->req_lim
.
* @ch: SRP RDMA channel.
* @req: Request to be freed.
* @scmnd: SCSI command associated with @req.
...
...
@@ -1316,9 +1315,6 @@ static int srp_map_finish_fr(struct srp_map_state *state,
WARN_ON_ONCE
(
!
dev
->
use_fast_reg
);
if
(
sg_nents
==
0
)
return
0
;
if
(
sg_nents
==
1
&&
target
->
global_mr
)
{
srp_map_desc
(
state
,
sg_dma_address
(
state
->
sg
),
sg_dma_len
(
state
->
sg
),
...
...
@@ -1398,7 +1394,7 @@ static int srp_map_sg_entry(struct srp_map_state *state,
/*
* If the last entry of the MR wasn't a full page, then we need to
* close it out and start a new one -- we can only merge at page
* boundries.
* bound
a
ries.
*/
ret
=
0
;
if
(
len
!=
dev
->
mr_page_size
)
...
...
@@ -1413,7 +1409,6 @@ static int srp_map_sg_fmr(struct srp_map_state *state, struct srp_rdma_ch *ch,
struct
scatterlist
*
sg
;
int
i
,
ret
;
state
->
desc
=
req
->
indirect_desc
;
state
->
pages
=
req
->
map_page
;
state
->
fmr
.
next
=
req
->
fmr_list
;
state
->
fmr
.
end
=
req
->
fmr_list
+
ch
->
target
->
cmd_sg_cnt
;
...
...
@@ -1428,8 +1423,6 @@ static int srp_map_sg_fmr(struct srp_map_state *state, struct srp_rdma_ch *ch,
if
(
ret
)
return
ret
;
req
->
nmdesc
=
state
->
nmdesc
;
return
0
;
}
...
...
@@ -1442,6 +1435,9 @@ static int srp_map_sg_fr(struct srp_map_state *state, struct srp_rdma_ch *ch,
state
->
fr
.
end
=
req
->
fr_list
+
ch
->
target
->
cmd_sg_cnt
;
state
->
sg
=
scat
;
if
(
count
==
0
)
return
0
;
while
(
count
)
{
int
i
,
n
;
...
...
@@ -1454,8 +1450,6 @@ static int srp_map_sg_fr(struct srp_map_state *state, struct srp_rdma_ch *ch,
state
->
sg
=
sg_next
(
state
->
sg
);
}
req
->
nmdesc
=
state
->
nmdesc
;
return
0
;
}
...
...
@@ -1475,8 +1469,6 @@ static int srp_map_sg_dma(struct srp_map_state *state, struct srp_rdma_ch *ch,
target
->
global_mr
->
rkey
);
}
req
->
nmdesc
=
state
->
nmdesc
;
return
0
;
}
...
...
@@ -1534,6 +1526,15 @@ static int srp_map_idb(struct srp_rdma_ch *ch, struct srp_request *req,
return
0
;
}
/**
* srp_map_data() - map SCSI data buffer onto an SRP request
* @scmnd: SCSI command to map
* @ch: SRP RDMA channel
* @req: SRP request
*
* Returns the length in bytes of the SRP_CMD IU or a negative value if
* mapping failed.
*/
static
int
srp_map_data
(
struct
scsi_cmnd
*
scmnd
,
struct
srp_rdma_ch
*
ch
,
struct
srp_request
*
req
)
{
...
...
@@ -1601,11 +1602,14 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_rdma_ch *ch,
memset
(
&
state
,
0
,
sizeof
(
state
));
if
(
dev
->
use_fast_reg
)
srp_map_sg_fr
(
&
state
,
ch
,
req
,
scat
,
count
);
ret
=
srp_map_sg_fr
(
&
state
,
ch
,
req
,
scat
,
count
);
else
if
(
dev
->
use_fmr
)
srp_map_sg_fmr
(
&
state
,
ch
,
req
,
scat
,
count
);
ret
=
srp_map_sg_fmr
(
&
state
,
ch
,
req
,
scat
,
count
);
else
srp_map_sg_dma
(
&
state
,
ch
,
req
,
scat
,
count
);
ret
=
srp_map_sg_dma
(
&
state
,
ch
,
req
,
scat
,
count
);
req
->
nmdesc
=
state
.
nmdesc
;
if
(
ret
<
0
)
goto
unmap
;
/* We've mapped the request, now pull as much of the indirect
* descriptor table as we can into the command buffer. If this
...
...
@@ -1628,7 +1632,8 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_rdma_ch *ch,
!
target
->
allow_ext_sg
))
{
shost_printk
(
KERN_ERR
,
target
->
scsi_host
,
"Could not fit S/G list into SRP_CMD
\n
"
);
return
-
EIO
;
ret
=
-
EIO
;
goto
unmap
;
}
count
=
min
(
state
.
ndesc
,
target
->
cmd_sg_cnt
);
...
...
@@ -1646,7 +1651,7 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_rdma_ch *ch,
ret
=
srp_map_idb
(
ch
,
req
,
state
.
gen
.
next
,
state
.
gen
.
end
,
idb_len
,
&
idb_rkey
);
if
(
ret
<
0
)
return
ret
;
goto
unmap
;
req
->
nmdesc
++
;
}
else
{
idb_rkey
=
cpu_to_be32
(
target
->
global_mr
->
rkey
);
...
...
@@ -1672,6 +1677,12 @@ static int srp_map_data(struct scsi_cmnd *scmnd, struct srp_rdma_ch *ch,
cmd
->
buf_fmt
=
fmt
;
return
len
;
unmap:
srp_unmap_data
(
scmnd
,
ch
,
req
);
if
(
ret
==
-
ENOMEM
&&
req
->
nmdesc
>=
target
->
mr_pool_size
)
ret
=
-
E2BIG
;
return
ret
;
}
/*
...
...
@@ -3218,6 +3229,7 @@ static ssize_t srp_create_target(struct device *dev,
}
target_host
->
sg_tablesize
=
target
->
sg_tablesize
;
target
->
mr_pool_size
=
target
->
scsi_host
->
can_queue
;
target
->
indirect_size
=
target
->
sg_tablesize
*
sizeof
(
struct
srp_direct_buf
);
target
->
max_iu_len
=
sizeof
(
struct
srp_cmd
)
+
...
...
drivers/infiniband/ulp/srp/ib_srp.h
View file @
321aebb8
...
...
@@ -202,6 +202,7 @@ struct srp_target_port {
char
target_name
[
32
];
unsigned
int
scsi_id
;
unsigned
int
sg_tablesize
;
int
mr_pool_size
;
int
queue_size
;
int
req_ring_size
;
int
comp_vector
;
...
...
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