netmap support for bnx2 driver about netmap HOT 7 CLOSED

Hello!

Could you share patch for bnx2 driver? Somebody could look at it and found 
mistakes. 

Original comment by pavel.odintsov on 26 Mar 2015 at 8:22

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i implemented netmap support (tx only) long ago, and found that the board is 
uncapable of more than 2.5-3Mpps so there is not much of a point in using 
netmap with it.

Original comment by [email protected] on 26 Mar 2015 at 8:34

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Dead discussion

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Hello @vmaffione

There is more details about you test with bnx2 module? In newer kernel versions, the performance issue still existing?

Thanks!

P.s: I have disposition to test. Here I have a unused machine with following nic:
02:00.0 Ethernet controller: Broadcom Limited NetXtreme II BCM5716 Gigabit Ethernet (rev 20)
02:00.1 Ethernet controller: Broadcom Limited NetXtreme II BCM5716 Gigabit Ethernet (rev 20)

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Well, I never tested those actually. There is no native support for bnx2, so you are using the emulated adapter, which comes at reduced performance.
Patches for native bnx2 support are welcome.

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@vmaffione but its possible to be done? There something in hardware that can be a no-go for netmap in bnx2? I know there is no native driver but afaik, this report is about a patch to support nativelly the bnx2 module, right?

Thanks!

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Yes, it can be done, for instance following the recommendations in #264 , and the NIC documentation would probably help.
I read in this thread that someone tried to add support for bnx2, but we have no more information (is the code available ? , what's the status ?, etc.)

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