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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2017-07-28 13:56:15 +0200
committerDavid S. Miller <davem@davemloft.net>2017-07-29 11:22:57 -0700
commita3fe3d01bd0d7cd6ee7a5e3eebc0926c47954fe7 (patch)
treec0e06f13c8691a67638ec6d1ed143eea7e8d8cdd /net/smc/smc_ib.h
parentc45abf31e72f7640c5e84adda4683b72cb32a222 (diff)
downloadlinux-a3fe3d01bd0d7cd6ee7a5e3eebc0926c47954fe7.tar.bz2
net/smc: introduce sg-logic for RMBs
The follow-on patch makes use of ib_map_mr_sg() when introducing separate memory regions for RMBs. This function is based on scatterlists; thus this patch introduces scatterlists for RMBs. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.h')
-rw-r--r--net/smc/smc_ib.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h
index b567152a526d..b30e387854b6 100644
--- a/net/smc/smc_ib.h
+++ b/net/smc/smc_ib.h
@@ -57,6 +57,12 @@ int smc_ib_buf_map(struct smc_ib_device *smcibdev, int buf_size,
void smc_ib_buf_unmap(struct smc_ib_device *smcibdev, int bufsize,
struct smc_buf_desc *buf_slot,
enum dma_data_direction data_direction);
+int smc_ib_buf_map_sg(struct smc_ib_device *smcibdev,
+ struct smc_buf_desc *buf_slot,
+ enum dma_data_direction data_direction);
+void smc_ib_buf_unmap_sg(struct smc_ib_device *smcibdev,
+ struct smc_buf_desc *buf_slot,
+ enum dma_data_direction data_direction);
void smc_ib_dealloc_protection_domain(struct smc_link *lnk);
int smc_ib_create_protection_domain(struct smc_link *lnk);
void smc_ib_destroy_queue_pair(struct smc_link *lnk);