Messages in this thread | | | Date | Tue, 14 Aug 2007 16:22:05 -0700 | From | Divy Le Ray <> | Subject | Re: [PATCH 2/13] cxgb3 - Update rx coalescing length |
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Jeff Garzik wrote: > > Divy Le Ray wrote: > > From: Divy Le Ray <divy@chelsio.com> > > > > Set max Rx coalescing length to 12288 > > > > Signed-off-by: Divy Le Ray <divy@chelsio.com> > > --- > > > > drivers/net/cxgb3/common.h | 2 +- > > 1 files changed, 1 insertions(+), 1 deletions(-) > > > > diff --git a/drivers/net/cxgb3/common.h b/drivers/net/cxgb3/common.h > > index c46c249..55922ed 100644 > > --- a/drivers/net/cxgb3/common.h > > +++ b/drivers/net/cxgb3/common.h > > @@ -104,7 +104,7 @@ enum { > > PROTO_SRAM_LINES = 128, /* size of TP sram */ > > }; > > > > -#define MAX_RX_COALESCING_LEN 16224U > > +#define MAX_RX_COALESCING_LEN 12288U > > neither the patch nor description explains -why- >
We're seeing back pressure from PCIe with large bursts, this patch allows to cut down on the burst size.
Divy
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