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| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2010-09-17 07:23:40 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-18 03:12:57 +0400 |
| commit | ebbb293f8b3021ae2009fcb7cb3b8a52fb5fd06a (patch) | |
| tree | 9ee381c887f2bc585c103a34b349d85fd95a2567 /drivers/net/stmmac/stmmac.h | |
| parent | dfb8fb96ae2b5126cd0c08c0ccd7c42e1f46568a (diff) | |
| download | linux-ebbb293f8b3021ae2009fcb7cb3b8a52fb5fd06a.tar.xz | |
stmmac: consolidate and tidy-up the COE support
The first version of the driver had hard-coded the logic
for handling the checksum offloading.
This was designed according to the chips included in
the STM platforms where:
o MAC10/100 supports no COE at all.
o GMAC fully supports RX/TX COE.
This is not good for other chip configurations where,
for example, the mac10/100 supports the tx csum in HW
or when the GMAC has no IPC.
Thanks to Johannes Stezenbach; he provided me a first
draft of this patch that only reviewed the IPC for the
GMAC devices.
This patch also helps on SPEAr platforms where the
MAC10/100 can perform the TX csum in HW.
Thanks to Deepak SIKRI for his support on this.
In the end, GMAC devices for STM platforms have
a bugged Jumbo frame support that needs to have
the Tx COE disabled for oversized frames (due to
limited buffer sizes). This information is also
passed through the driver's platform structure.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Deepak SIKRI <deepak.sikri@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/stmmac/stmmac.h')
| -rw-r--r-- | drivers/net/stmmac/stmmac.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h index 12d1cb00c0d7..92154ff7d702 100644 --- a/drivers/net/stmmac/stmmac.h +++ b/drivers/net/stmmac/stmmac.h @@ -51,7 +51,6 @@ struct stmmac_priv { int is_gmac; dma_addr_t dma_rx_phy; unsigned int dma_rx_size; - int rx_csum; unsigned int dma_buf_sz; struct device *device; struct mac_device_info *hw; @@ -92,6 +91,9 @@ struct stmmac_priv { struct vlan_group *vlgrp; #endif int enh_desc; + int rx_coe; + int bugged_jumbo; + int no_csum_insertion; }; #ifdef CONFIG_STM_DRIVERS |