From: David S. Miller Date: Mon, 15 Aug 2016 04:16:58 +0000 (-0700) Subject: Merge branch 'cxgb4-IFLA_VF_MAC' X-Git-Tag: v5.15~12647^2~105 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=2fb876b2221d35fab002595af71c7ea339166a20;p=platform%2Fkernel%2Flinux-starfive.git Merge branch 'cxgb4-IFLA_VF_MAC' Hariprasad Shenai says: ==================== cxgb4: Add support for IFLA_VF_MAC We're struggling to implement the PCI SR-IOV management features for administering Virtual Functions which represent networking devices using the current Linux APIs. The problem is that these APIs incorporate all sorts of assumptions which don't match chelsio networking cards. For instance, the current APIs assume a 1-to-1 mapping of Network Ports, Physical Functions and the SR-IOV Virtual Functions of those Physical Functions. This is not the case with our cards where any Virtual Function can be hooked up to any Port -- or any number of Ports the current Linux APIs also assume only 1 Network Interface/Port can be accessed per Virtuali Function. Another issue is that these APIs assume that the Administrative Driver is attached to the Physical Function Associated with a Virtual Function. This is not the case with our card where all administration is performed by a Driver which is not attached to any of the Physical Functions which have SR-IOV PCI Capabilities. Another consequence of these assumptions is the inability to utilize all of the cards SR-IOV resources. For instance, our cards have SR-IOV Capabilities on Physical Functions 0..3 and the administrative Driver attaches to Physical Function 4. Each of the Physical Functions 0..3 can support up to 16 Virtual Functions. With the current Linux APIs, a 2-Port card would only be able to use the Virtual Functions on Physical Function 0..1 and not allow the Virtual Functions on Physical Functions 2..3 to be used since there are no Ports 2..3 on a 2-Port card. Patch 1/2 adds support to create management interface for each PF to control thier corresponding VF's. Patch 2/2 adds support for ndo_set_vf_mac. This patch series has been created against net-next tree. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. V5: Fix warning reported by kbuild bot when CONFIG_PCI_IOV isn't defined. V4: Handle memory allocation failure for adapter->mbox_log in init_one(). Based on review comment by Yuval Mintz V3: Based on review comment by Yuval Mintz, removed extra parameter pf added to IFLA_VF API's and created a net_device corresponding to each PF for controling their VF. Based on review comment by Yuval Mintz V2: Fixed check for MAC address in Patch 2/2, based on review comment by Yuval Mintz ==================== Signed-off-by: David S. Miller --- 2fb876b2221d35fab002595af71c7ea339166a20