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crypto: qat - exchange device capabilities over PFVF

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Allow the VF driver to get the supported device capabilities through PFVF,
by adding a new block message, the Capability Summary.

This messages allows to exchange the capability through masks, which
report, depending on the Capability Summary version, up to the following
information:
- algorithms and/or services that are supported by the device (e.g.
  symmetric crypto, data compression, etc.)
- (extended) compression capabilities, with details about the compression
  service (e.g. if compress and verify is supported by this device)
- the frequency of the device

This patch supports the latest Capabilities Summary version 3 for VFs,
but will limit support for the PF driver to version 2. This change also
increases the PFVF protocol to version 2.

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Fiona Trahe <fiona.trahe@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Marco Chiappero
2021-12-16 09:13:27 +00:00
committed by Herbert Xu
parent 673184a2a5
commit 851ed498db
8 changed files with 112 additions and 4 deletions
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35
drivers/crypto/qat/qat_common/adf_pfvf_msg.h
View File

@@ -87,8 +87,10 @@ enum vf2pf_msgtype {
/* VF/PF compatibility version. */
enum pfvf_compatibility_version {
/* Reference to the current version */
ADF_PFVF_COMPAT_THIS_VERSION = 0x01,
/* Support for extended capabilities */
ADF_PFVF_COMPAT_CAPABILITIES = 0x02,
/* Reference to the latest version */
ADF_PFVF_COMPAT_THIS_VERSION = 0x02,
};
/* PF->VF Version Response */
@@ -133,7 +135,9 @@ enum pf2vf_blkmsg_error {
* 16..23 - 64 byte message
* 24..27 - 128 byte message
*/
/* No block messages as of yet */
enum vf2pf_blkmsg_req_type {
ADF_VF2PF_BLKMSG_REQ_CAP_SUMMARY = 0x02,
};
#define ADF_VF2PF_SMALL_BLOCK_TYPE_MAX \
(FIELD_MAX(ADF_VF2PF_SMALL_BLOCK_TYPE_MASK))
@@ -171,4 +175,29 @@ struct pfvf_blkmsg_header {
#define ADF_PFVF_BLKMSG_VER_BYTE 0
#define ADF_PFVF_BLKMSG_LEN_BYTE 1
/* PF/VF Capabilities message values */
enum blkmsg_capabilities_versions {
ADF_PFVF_CAPABILITIES_V1_VERSION = 0x01,
ADF_PFVF_CAPABILITIES_V2_VERSION = 0x02,
ADF_PFVF_CAPABILITIES_V3_VERSION = 0x03,
};
struct capabilities_v1 {
struct pfvf_blkmsg_header hdr;
u32 ext_dc_caps;
} __packed;
struct capabilities_v2 {
struct pfvf_blkmsg_header hdr;
u32 ext_dc_caps;
u32 capabilities;
} __packed;
struct capabilities_v3 {
struct pfvf_blkmsg_header hdr;
u32 ext_dc_caps;
u32 capabilities;
u32 frequency;
} __packed;
#endif /* ADF_PFVF_MSG_H */