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devlink: Expose port function commands to control IPsec crypto offloads

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Expose port function commands to enable / disable IPsec crypto offloads,
this is used to control the port IPsec capabilities.

When IPsec crypto is disabled for a function of the port (default),
function cannot offload any IPsec crypto operations (Encrypt/Decrypt and
XFRM state offloading). When enabled, IPsec crypto operations can be
offloaded by the function of the port.

Example of a PCI VF port which supports IPsec crypto offloads:

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto disable

$ devlink port function set pci/0000:06:00.0/1 ipsec_crypto enable

$ devlink port show pci/0000:06:00.0/1
    pci/0000:06:00.0/1: type eth netdev enp6s0pf0vf0 flavour pcivf pfnum 0 vfnum 0
        function:
        hw_addr 00:00:00:00:00:00 roce enable ipsec_crypto enable

Signed-off-by: Dima Chumak <dchumak@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20230825062836.103744-2-saeed@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Dima Chumak
2023-08-24 23:28:29 -07:00
committed by Jakub Kicinski
parent aa05346dad
commit 62b6442c58
4 changed files with 96 additions and 0 deletions
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include/uapi/linux/devlink.h
+2
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@@ -661,6 +661,7 @@ enum devlink_resource_unit {
enum devlink_port_fn_attr_cap {
DEVLINK_PORT_FN_ATTR_CAP_ROCE_BIT,
DEVLINK_PORT_FN_ATTR_CAP_MIGRATABLE_BIT,
DEVLINK_PORT_FN_ATTR_CAP_IPSEC_CRYPTO_BIT,
/* Add new caps above */
__DEVLINK_PORT_FN_ATTR_CAPS_MAX,
@@ -669,6 +670,7 @@ enum devlink_port_fn_attr_cap {
#define DEVLINK_PORT_FN_CAP_ROCE _BITUL(DEVLINK_PORT_FN_ATTR_CAP_ROCE_BIT)
#define DEVLINK_PORT_FN_CAP_MIGRATABLE \
_BITUL(DEVLINK_PORT_FN_ATTR_CAP_MIGRATABLE_BIT)
#define DEVLINK_PORT_FN_CAP_IPSEC_CRYPTO _BITUL(DEVLINK_PORT_FN_ATTR_CAP_IPSEC_CRYPTO_BIT)
enum devlink_port_function_attr {
DEVLINK_PORT_FUNCTION_ATTR_UNSPEC,