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| author | Michael Brown <mcb30@ipxe.org> | 2024-07-25 00:10:38 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2024-07-25 00:13:33 +0100 |
| commit | d2d194bc60f012569fa95ed54693cb6663beb5ce (patch) | |
| tree | 5121f9a48b7724fb7d241ff05abab99570c63cf4 /src/drivers/net/gve.c | |
| parent | c7b76e3adc3b4365aa3b490f24ae22375901c559 (diff) | |
| download | ipxe-d2d194bc60f012569fa95ed54693cb6663beb5ce.tar.gz | |
[gve] Increase number of receive buffers to reduce packet loss
Experiments suggest that using fewer than 64 receive buffers leads to
excessive packet drop rates on some instance types (observed with a
c3-standard-4 instance in europe-west4-a).
Fix by increasing the number of receive data buffers (and adjusting
the length of the registrable queue page address list to match).
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers/net/gve.c')
| -rw-r--r-- | src/drivers/net/gve.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/drivers/net/gve.c b/src/drivers/net/gve.c index 03edc0899..7f86dd219 100644 --- a/src/drivers/net/gve.c +++ b/src/drivers/net/gve.c @@ -722,6 +722,7 @@ static int gve_alloc_qpl ( struct gve_nic *gve, struct gve_qpl *qpl, /* Calculate number of pages required */ build_assert ( GVE_BUF_SIZE <= GVE_PAGE_SIZE ); qpl->count = ( ( buffers + GVE_BUF_PER_PAGE - 1 ) / GVE_BUF_PER_PAGE ); + assert ( qpl->count <= GVE_QPL_MAX ); /* Allocate pages (as a single block) */ len = ( qpl->count * GVE_PAGE_SIZE ); |