diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-07-17 19:15:59 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-07-19 17:36:34 +0300 |
| commit | 4359836129d931fc424370249a1fcdec139fe407 (patch) | |
| tree | bd66f7fd46c1ab2ac7577ce5f974a290ee514272 /drivers/net | |
| parent | a1b7dbca149053e4f79a451bebdf0c40c9092896 (diff) | |
| download | linux-4359836129d931fc424370249a1fcdec139fe407.tar.xz | |
eth: fbnic: don't build the driver when skb has more than 21 frags
Similarly to commit 0e03c643dc93 ("eth: fbnic: fix s390 build."),
the driver won't build if skb_shared_info has more than 25 frags
assuming a 64B cache line and 21 frags assuming a 128B cache line.
(512 - 48 - 64) / 16 = 25
(512 - 48 - 128) / 16 = 21
Fixes: 0cb4c0a13723 ("eth: fbnic: Implement Rx queue alloc/start/stop/free")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20240717161600.1291544-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/meta/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/meta/Kconfig b/drivers/net/ethernet/meta/Kconfig index a9f078212c78..86034ea4ba5b 100644 --- a/drivers/net/ethernet/meta/Kconfig +++ b/drivers/net/ethernet/meta/Kconfig @@ -21,6 +21,7 @@ config FBNIC tristate "Meta Platforms Host Network Interface" depends on X86_64 || COMPILE_TEST depends on S390=n + depends on MAX_SKB_FRAGS < 22 depends on PCI_MSI select PHYLINK help |