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| author | Eunbong Song <eunb.song@samsung.com> | 2014-10-30 01:09:00 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-30 13:32:24 -0700 |
| commit | a6a39a7fcff597c4384a21922332ee513f33ccbf (patch) | |
| tree | 7ca52091372f127c64ff23612b0fa4fc1119ea29 /drivers/staging/octeon | |
| parent | 8369e382bd98ee5586928bed41992f8bd73d4cec (diff) | |
| download | op-kernel-dev-a6a39a7fcff597c4384a21922332ee513f33ccbf.zip op-kernel-dev-a6a39a7fcff597c4384a21922332ee513f33ccbf.tar.gz | |
staging: octeon-ethernet: disable load balance for receiving packet when CONFIG_RPS is enabled.
It's better disable load balance for receiving packet when CONFIG_RPS is enabled.
If not, octeon-ethernet driver select CPU and then the rps select again CPU.
It can be ipi interrupts overhead and packet reordering could be possible.
Signed-off-by: Eunbong Song <eunb.song@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/octeon')
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index b2b6c3c..44e372f 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -286,6 +286,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) did_work_request = 1; } +#ifndef CONFIG_RPS if (rx_count == 0) { /* * First time through, see if there is enough @@ -300,6 +301,7 @@ static int cvm_oct_napi_poll(struct napi_struct *napi, int budget) if (backlog > budget * cores_in_use && napi != NULL) cvm_oct_enable_one_cpu(); } +#endif rx_count++; skb_in_hw = USE_SKBUFFS_IN_HW && work->word2.s.bufs == 1; |
