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authorAlex Vesker <valex@mellanox.com>2018-06-28 15:05:58 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2019-06-13 13:23:17 -0700
commitb25bbc2f24dcab9cd186ef4003c39bf51ad0454c (patch)
tree52c2fce61d25929e74c966605147f88a8e23d3e1 /arch/nios2
parent1f28d7768f1d181249318a0f61949d4cb412e8c4 (diff)
downloadlinux-b25bbc2f24dcab9cd186ef4003c39bf51ad0454c.tar.bz2
net/mlx5: Add Vendor Specific Capability access gateway
The Vendor Specific Capability (VSC) is used to activate a gateway interfacing with the device. The gateway is used to read or write device configurations, which are organized in different domains (spaces). A configuration access may result in multiple actions, reads, writes. Example usages are accessing the Crspace domain to read the crspace or locking a device semaphore using the Semaphore domain. The configuration access use pci_cfg_access to prevent parallel access to the VSC space by the driver and userspace calls. Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Feras Daoud <ferasda@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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