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author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2011-10-26 15:43:09 -0400 |
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committer | David S. Miller <davem@davemloft.net> | 2011-10-27 23:17:12 -0400 |
commit | 3c20f72f9108b2fcf30ec63d8a4203736c01ccd0 (patch) | |
tree | 8310be8eba2e616fc3b93e5c7e379343c0480710 /net | |
parent | e2c57f839c63f452b4704e048c8db9cf669ed410 (diff) |
stmmac: update normal descriptor structure (v2)
This patch updates the normal descriptor structure
to work fine on new GMAC Synopsys chips.
Normal descriptors were designed on the old MAC10/100
databook 1.91 where some bits were reserved: for example
the tx checksum insertion and rx checksum offload.
The patch maintains the back-compatibility with old
MAC devices (tested on STx7109 MAC10/100) and adds new
fields that actually new GMAC devices can use.
For example, STx7109 (MAC10/100) will pass from the platform
tx_coe = 0, enh_desc = 0, has_gmac = 0.
A platform like Loongson1B (GMAC) will pass:
tx_coe = 1, enh_desc = 0, has_gmac = 1.
Thanks to Kelvin, he enhanced the normal descriptors for
GMAC (on MIPS Loongson1B platform).
Signed-off-by: Kelvin Cheung <keguang.zhang@gmail.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions