From: Viacheslav Galaktionov <viacheslav.galaktio...@oktetlabs.ru>
Equality checks between VNICs should be done by comparing their client
handles. This means that clients should be able to retrieve client handles
for arbitrary functions and themselves.
Signed-off-by: Viacheslav Galaktionov <viacheslav.galaktio...@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
Reviewed-by: Andy Moreton <amore...@xilinx.com>
---
drivers/common/sfc_efx/base/efx.h | 15 ++++++
drivers/common/sfc_efx/base/efx_mcdi.c | 73 ++++++++++++++++++++++++++
drivers/common/sfc_efx/version.map | 2 +
3 files changed, 90 insertions(+)
diff --git a/drivers/common/sfc_efx/base/efx.h
b/drivers/common/sfc_efx/base/efx.h
index e77b297950..b61984a8e3 100644
--- a/drivers/common/sfc_efx/base/efx.h
+++ b/drivers/common/sfc_efx/base/efx.h
@@ -391,6 +391,21 @@ extern __checkReturn boolean_t
efx_mcdi_request_abort(
__in efx_nic_t *enp);
+LIBEFX_API
+extern __checkReturn efx_rc_t
+efx_mcdi_get_client_handle(
+ __in efx_nic_t *enp,
+ __in efx_pcie_interface_t intf,
+ __in uint16_t pf,
+ __in uint16_t vf,
+ __out uint32_t *handle);
+
+LIBEFX_API
+extern __checkReturn efx_rc_t
+efx_mcdi_get_own_client_handle(
+ __in efx_nic_t *enp,
+ __out uint32_t *handle);
+
LIBEFX_API
extern void
efx_mcdi_fini(
diff --git a/drivers/common/sfc_efx/base/efx_mcdi.c
b/drivers/common/sfc_efx/base/efx_mcdi.c
index 69bf7ce70f..cdf7181e0d 100644
--- a/drivers/common/sfc_efx/base/efx_mcdi.c
+++ b/drivers/common/sfc_efx/base/efx_mcdi.c
@@ -647,6 +647,79 @@ efx_mcdi_request_abort(
return (aborted);
}
+ __checkReturn efx_rc_t
+efx_mcdi_get_client_handle(
+ __in efx_nic_t *enp,
+ __in efx_pcie_interface_t intf,
+ __in uint16_t pf,
+ __in uint16_t vf,
+ __out uint32_t *handle)
+{
+ efx_mcdi_req_t req;
+ EFX_MCDI_DECLARE_BUF(payload,
+ MC_CMD_GET_CLIENT_HANDLE_IN_LEN,
+ MC_CMD_GET_CLIENT_HANDLE_OUT_LEN);
+ efx_rc_t rc;
+
+ if (handle == NULL) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ req.emr_cmd = MC_CMD_GET_CLIENT_HANDLE;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_GET_CLIENT_HANDLE_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_GET_CLIENT_HANDLE_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, GET_CLIENT_HANDLE_IN_TYPE,
+ MC_CMD_GET_CLIENT_HANDLE_IN_TYPE_FUNC);
+ MCDI_IN_SET_WORD(req, GET_CLIENT_HANDLE_IN_FUNC_PF, pf);
+ MCDI_IN_SET_WORD(req, GET_CLIENT_HANDLE_IN_FUNC_VF, vf);
+ MCDI_IN_SET_DWORD(req, GET_CLIENT_HANDLE_IN_FUNC_INTF, intf);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail2;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_GET_CLIENT_HANDLE_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail3;
+ }
+
+ *handle = MCDI_OUT_DWORD(req, GET_CLIENT_HANDLE_OUT_HANDLE);
+
+ return 0;
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+efx_mcdi_get_own_client_handle(
+ __in efx_nic_t *enp,
+ __out uint32_t *handle)
+{
+ efx_rc_t rc;
+
+ rc = efx_mcdi_get_client_handle(enp, PCIE_INTERFACE_CALLER,
+ PCIE_FUNCTION_PF_NULL, PCIE_FUNCTION_VF_NULL, handle);
+ if (rc != 0)
+ goto fail1;
+
+ return (0);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
void
efx_mcdi_get_timeout(
__in efx_nic_t *enp,
diff --git a/drivers/common/sfc_efx/version.map
b/drivers/common/sfc_efx/version.map
index 10216bb37d..346deb4b12 100644
--- a/drivers/common/sfc_efx/version.map
+++ b/drivers/common/sfc_efx/version.map
@@ -136,6 +136,8 @@ INTERNAL {
efx_mae_read_mport_journal;
efx_mcdi_fini;
+ efx_mcdi_get_client_handle;
+ efx_mcdi_get_own_client_handle;
efx_mcdi_get_proxy_handle;
efx_mcdi_get_timeout;
efx_mcdi_init;
--
2.30.2
