diff options
| author | Ursula Braun <ubraun@linux.vnet.ibm.com> | 2017-07-28 13:56:19 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-29 11:22:58 -0700 |
| commit | 9d8fb6173477ad61364eeab652a87c2a295fa601 (patch) | |
| tree | 9e9baab364d66d36337bac11380d87fc80ab0143 /net/smc/smc_ib.c | |
| parent | d5b361b0dc3aa319522ef593b9bbf19ac3db23c5 (diff) | |
net/smc: introduce sg-logic for send buffers
SMC send buffers are processed the same way as RMBs. Since RMBs have
been converted to sg-logic, do the same for send buffers.
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.c')
| -rw-r--r-- | net/smc/smc_ib.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index 85e1831f591e..021f061609f5 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -295,35 +295,6 @@ int smc_ib_get_memory_region(struct ib_pd *pd, int access_flags, return 0; } -/* map a new TX or RX buffer to DMA */ -int smc_ib_buf_map(struct smc_ib_device *smcibdev, int buf_size, - struct smc_buf_desc *buf_slot, - enum dma_data_direction data_direction) -{ - int rc = 0; - - if (buf_slot->dma_addr[SMC_SINGLE_LINK]) - return rc; /* already mapped */ - buf_slot->dma_addr[SMC_SINGLE_LINK] = - ib_dma_map_single(smcibdev->ibdev, buf_slot->cpu_addr, - buf_size, data_direction); - if (ib_dma_mapping_error(smcibdev->ibdev, - buf_slot->dma_addr[SMC_SINGLE_LINK])) - rc = -EIO; - return rc; -} - -void smc_ib_buf_unmap(struct smc_ib_device *smcibdev, int buf_size, - struct smc_buf_desc *buf_slot, - enum dma_data_direction data_direction) -{ - if (!buf_slot->dma_addr[SMC_SINGLE_LINK]) - return; /* already unmapped */ - ib_dma_unmap_single(smcibdev->ibdev, *buf_slot->dma_addr, buf_size, - data_direction); - buf_slot->dma_addr[SMC_SINGLE_LINK] = 0; -} - /* Map a new TX or RX buffer SG-table to DMA */ int smc_ib_buf_map_sg(struct smc_ib_device *smcibdev, struct smc_buf_desc *buf_slot, |