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| author |   Varun Prakash <varun@chelsio.com> | 2016-09-13 21:24:01 +0530 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-09-15 20:49:20 -0400 |
| commit | cc516700c7edab4197d08998ac023c3043369391 (patch) | |
| tree | 7066c61e5639f393e5edf15e36d1c8712d78c1ea /drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h | |
| parent | libcxgb,iw_cxgb4,cxgbit: add cxgb_best_mtu() (diff) | |
| download | linux-dev-cc516700c7edab4197d08998ac023c3043369391.tar.xz linux-dev-cc516700c7edab4197d08998ac023c3043369391.zip | |
libcxgb,iw_cxgb4,cxgbit: add cxgb_compute_wscale()
Add cxgb_compute_wscale() in libcxgb_cm.h to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.
Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h index 7fb4feb3c221..ecf3baa940b9 100644 --- a/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h +++ b/drivers/net/ethernet/chelsio/libcxgb/libcxgb_cm.h @@ -74,4 +74,13 @@ cxgb_best_mtu(const unsigned short *mtus, unsigned short mtu, cxgb4_best_aligned_mtu(mtus, hdr_size, data_size, 8, idx); } + +static inline u32 cxgb_compute_wscale(u32 win) +{ + u32 wscale = 0; + + while (wscale < 14 && (65535 << wscale) < win) + wscale++; + return wscale; +} #endif |