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xprtrdma: Add "destroy MRs" memreg op

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Memory Region objects associated with a transport instance are
destroyed before the instance is shutdown and destroyed.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Devesh Sharma <Devesh.Sharma@Emulex.Com>
Tested-by: Meghana Cheripady <Meghana.Cheripady@Emulex.Com>
Tested-by: Veeresh U. Kokatnur <veereshuk@chelsio.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2015-03-30 14:35:17 -04:00 committed by Anna Schumaker
parent 31a701a947
commit 4561f347d4
5 changed files with 40 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
net/sunrpc/xprtrdma/fmr_ops.c
View File

@ -168,11 +168,29 @@ fmr_op_reset(struct rpcrdma_xprt *r_xprt)
__func__, rc);
}
static void
fmr_op_destroy(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
int rc;
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
rc = ib_dealloc_fmr(r->r.fmr);
if (rc)
dprintk("RPC: %s: ib_dealloc_fmr failed %i\n",
__func__, rc);
kfree(r);
}
}
const struct rpcrdma_memreg_ops rpcrdma_fmr_memreg_ops = {
.ro_map = fmr_op_map,
.ro_unmap = fmr_op_unmap,
.ro_maxpages = fmr_op_maxpages,
.ro_init = fmr_op_init,
.ro_reset = fmr_op_reset,
.ro_destroy = fmr_op_destroy,
.ro_displayname = "fmr",
};

14
net/sunrpc/xprtrdma/frwr_ops.c
View File

@ -260,11 +260,25 @@ frwr_op_reset(struct rpcrdma_xprt *r_xprt)
}
}
static void
frwr_op_destroy(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
__frwr_release(r);
kfree(r);
}
}
const struct rpcrdma_memreg_ops rpcrdma_frwr_memreg_ops = {
.ro_map = frwr_op_map,
.ro_unmap = frwr_op_unmap,
.ro_maxpages = frwr_op_maxpages,
.ro_init = frwr_op_init,
.ro_reset = frwr_op_reset,
.ro_destroy = frwr_op_destroy,
.ro_displayname = "frwr",
};

6
net/sunrpc/xprtrdma/physical_ops.c
View File

@ -64,11 +64,17 @@ physical_op_reset(struct rpcrdma_xprt *r_xprt)
{
}
static void
physical_op_destroy(struct rpcrdma_buffer *buf)
{
}
const struct rpcrdma_memreg_ops rpcrdma_physical_memreg_ops = {
.ro_map = physical_op_map,
.ro_unmap = physical_op_unmap,
.ro_maxpages = physical_op_maxpages,
.ro_init = physical_op_init,
.ro_reset = physical_op_reset,
.ro_destroy = physical_op_destroy,
.ro_displayname = "physical",
};

52
net/sunrpc/xprtrdma/verbs.c
View File

@ -1199,47 +1199,6 @@ rpcrdma_destroy_req(struct rpcrdma_ia *ia, struct rpcrdma_req *req)
kfree(req);
}
static void
rpcrdma_destroy_fmrs(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
int rc;
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
list_del(&r->mw_list);
rc = ib_dealloc_fmr(r->r.fmr);
if (rc)
dprintk("RPC: %s: ib_dealloc_fmr failed %i\n",
__func__, rc);
kfree(r);
}
}
static void
rpcrdma_destroy_frmrs(struct rpcrdma_buffer *buf)
{
struct rpcrdma_mw *r;
int rc;
while (!list_empty(&buf->rb_all)) {
r = list_entry(buf->rb_all.next, struct rpcrdma_mw, mw_all);
list_del(&r->mw_all);
list_del(&r->mw_list);
rc = ib_dereg_mr(r->r.frmr.fr_mr);
if (rc)
dprintk("RPC: %s: ib_dereg_mr failed %i\n",
__func__, rc);
ib_free_fast_reg_page_list(r->r.frmr.fr_pgl);
kfree(r);
}
}
void
rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
{
@ -1260,16 +1219,7 @@ rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
rpcrdma_destroy_req(ia, buf->rb_send_bufs[i]);
}
switch (ia->ri_memreg_strategy) {
case RPCRDMA_FRMR:
rpcrdma_destroy_frmrs(buf);
break;
case RPCRDMA_MTHCAFMR:
rpcrdma_destroy_fmrs(buf);
break;
default:
break;
}
ia->ri_ops->ro_destroy(buf);
kfree(buf->rb_pool);
}

1
net/sunrpc/xprtrdma/xprt_rdma.h
View File

@ -343,6 +343,7 @@ struct rpcrdma_memreg_ops {
size_t (*ro_maxpages)(struct rpcrdma_xprt *);
int (*ro_init)(struct rpcrdma_xprt *);
void (*ro_reset)(struct rpcrdma_xprt *);
void (*ro_destroy)(struct rpcrdma_buffer *);
const char *ro_displayname;
};