diff mbox series

[net-next,v3,RESEND,2/4] octeon_ep: remove dma sync in trasmit path

Message ID 20231114134535.2455051-3-srasheed@marvell.com (mailing list archive)
State Accepted
Commit 2fba5069959c50c0e5be95e8d67356c63909cbc2
Delegated to: Netdev Maintainers
Headers show
Series Cleanup and optimizations to transmit code | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 8 this patch: 8
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 1161 this patch: 1161
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1161 this patch: 1161
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 19 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Shinas Rasheed Nov. 14, 2023, 1:45 p.m. UTC 
Cleanup dma sync calls for scatter gather
mappings, since they are coherent allocations
and do not need explicit sync to be called.

Signed-off-by: Shinas Rasheed <srasheed@marvell.com>
---
V3:
  - No changes.
V2: https://lore.kernel.org/all/20231024145119.2366588-3-srasheed@marvell.com/
  - Provided more details in changelog
V1: https://lore.kernel.org/all/20231023114449.2362147-2-srasheed@marvell.com/

 drivers/net/ethernet/marvell/octeon_ep/octep_main.c | 7 -------
 1 file changed, 7 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
index 2c86b911a380..1c02304677c9 100644
--- a/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
+++ b/drivers/net/ethernet/marvell/octeon_ep/octep_main.c
@@ -872,9 +872,6 @@  static netdev_tx_t octep_start_xmit(struct sk_buff *skb,
 		if (dma_mapping_error(iq->dev, dma))
 			goto dma_map_err;
 
-		dma_sync_single_for_cpu(iq->dev, tx_buffer->sglist_dma,
-					OCTEP_SGLIST_SIZE_PER_PKT,
-					DMA_TO_DEVICE);
 		memset(sglist, 0, OCTEP_SGLIST_SIZE_PER_PKT);
 		sglist[0].len[3] = len;
 		sglist[0].dma_ptr[0] = dma;
@@ -894,10 +891,6 @@  static netdev_tx_t octep_start_xmit(struct sk_buff *skb,
 			frag++;
 			si++;
 		}
-		dma_sync_single_for_device(iq->dev, tx_buffer->sglist_dma,
-					   OCTEP_SGLIST_SIZE_PER_PKT,
-					   DMA_TO_DEVICE);
-
 		hw_desc->dptr = tx_buffer->sglist_dma;
 	}