diff mbox series

[1/3] common/sfc_efx/base: convert EFX PCIe INTF to MCDI value

Message ID 20220526084550.243121-1-ivan.malov@oktetlabs.ru (mailing list archive)
State Accepted
Delegated to: Andrew Rybchenko
Headers show
Series [1/3] common/sfc_efx/base: convert EFX PCIe INTF to MCDI value | expand

Checks

Context Check Description
ci/checkpatch warning coding style issues

Commit Message

Ivan Malov May 26, 2022, 8:45 a.m. UTC
When the driver queries its PCIe interface type via MCDI,
the value from the response is translated to an EFX enum.

When the driver passes this enum value back to any other
MCDI helper, the inverse translation has to be conducted.

Fixes: 1bf9ff57ccb3 ("common/sfc_efx/base: allow getting VNIC MCDI client handles")
Cc: stable@dpdk.org

Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
---
 drivers/common/sfc_efx/base/efx_impl.h |  6 ++++
 drivers/common/sfc_efx/base/efx_mcdi.c | 44 +++++++++++++++++++++++---
 2 files changed, 46 insertions(+), 4 deletions(-)

Comments

Andrew Rybchenko May 31, 2022, 4:57 p.m. UTC | #1
On 5/26/22 11:45, Ivan Malov wrote:
> When the driver queries its PCIe interface type via MCDI,
> the value from the response is translated to an EFX enum.
> 
> When the driver passes this enum value back to any other
> MCDI helper, the inverse translation has to be conducted.
> 
> Fixes: 1bf9ff57ccb3 ("common/sfc_efx/base: allow getting VNIC MCDI client handles")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
> Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
> Reviewed-by: Andy Moreton <amoreton@xilinx.com>

Series applied to dpdk-next-net/main, thanks.
diff mbox series

Patch

diff --git a/drivers/common/sfc_efx/base/efx_impl.h b/drivers/common/sfc_efx/base/efx_impl.h
index 7dfe30b695..9a5d465fa0 100644
--- a/drivers/common/sfc_efx/base/efx_impl.h
+++ b/drivers/common/sfc_efx/base/efx_impl.h
@@ -1556,6 +1556,12 @@  efx_mcdi_intf_from_pcie(
 	__in			uint32_t pcie_intf,
 	__out			efx_pcie_interface_t *efx_intf);
 
+LIBEFX_INTERNAL
+extern	__checkReturn		efx_rc_t
+efx_mcdi_intf_to_pcie(
+	__in			efx_pcie_interface_t efx_intf,
+	__out			uint32_t *pcie_intf);
+
 LIBEFX_INTERNAL
 extern	__checkReturn	efx_rc_t
 efx_mcdi_init_evq(
diff --git a/drivers/common/sfc_efx/base/efx_mcdi.c b/drivers/common/sfc_efx/base/efx_mcdi.c
index 9189a7a8b3..404ca23d58 100644
--- a/drivers/common/sfc_efx/base/efx_mcdi.c
+++ b/drivers/common/sfc_efx/base/efx_mcdi.c
@@ -659,6 +659,7 @@  efx_mcdi_get_client_handle(
 	EFX_MCDI_DECLARE_BUF(payload,
 	    MC_CMD_GET_CLIENT_HANDLE_IN_LEN,
 	    MC_CMD_GET_CLIENT_HANDLE_OUT_LEN);
+	uint32_t pcie_intf;
 	efx_rc_t rc;
 
 	if (handle == NULL) {
@@ -666,6 +667,10 @@  efx_mcdi_get_client_handle(
 		goto fail1;
 	}
 
+	rc = efx_mcdi_intf_to_pcie(intf, &pcie_intf);
+	if (rc != 0)
+		goto fail2;
+
 	req.emr_cmd = MC_CMD_GET_CLIENT_HANDLE;
 	req.emr_in_buf = payload;
 	req.emr_in_length = MC_CMD_GET_CLIENT_HANDLE_IN_LEN;
@@ -676,23 +681,25 @@  efx_mcdi_get_client_handle(
 	    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);
+	MCDI_IN_SET_DWORD(req, GET_CLIENT_HANDLE_IN_FUNC_INTF, pcie_intf);
 
 	efx_mcdi_execute(enp, &req);
 
 	if (req.emr_rc != 0) {
 		rc = req.emr_rc;
-		goto fail2;
+		goto fail3;
 	}
 
 	if (req.emr_out_length_used < MC_CMD_GET_CLIENT_HANDLE_OUT_LEN) {
 		rc = EMSGSIZE;
-		goto fail3;
+		goto fail4;
 	}
 
 	*handle = MCDI_OUT_DWORD(req, GET_CLIENT_HANDLE_OUT_HANDLE);
 
 	return 0;
+fail4:
+	EFSYS_PROBE(fail4);
 fail3:
 	EFSYS_PROBE(fail3);
 fail2:
@@ -709,7 +716,7 @@  efx_mcdi_get_own_client_handle(
 {
 	efx_rc_t rc;
 
-	rc = efx_mcdi_get_client_handle(enp, PCIE_INTERFACE_CALLER,
+	rc = efx_mcdi_get_client_handle(enp, EFX_PCIE_INTERFACE_CALLER,
 	    PCIE_FUNCTION_PF_NULL, PCIE_FUNCTION_VF_NULL, handle);
 	if (rc != 0)
 		goto fail1;
@@ -2233,6 +2240,35 @@  efx_mcdi_intf_from_pcie(
 	return (rc);
 }
 
+	__checkReturn		efx_rc_t
+efx_mcdi_intf_to_pcie(
+	__in			efx_pcie_interface_t efx_intf,
+	__out			uint32_t *pcie_intf)
+{
+	efx_rc_t rc;
+
+	switch (efx_intf) {
+	case EFX_PCIE_INTERFACE_CALLER:
+		*pcie_intf = PCIE_INTERFACE_CALLER;
+		break;
+	case EFX_PCIE_INTERFACE_HOST_PRIMARY:
+		*pcie_intf = PCIE_INTERFACE_HOST_PRIMARY;
+		break;
+	case EFX_PCIE_INTERFACE_NIC_EMBEDDED:
+		*pcie_intf = PCIE_INTERFACE_NIC_EMBEDDED;
+		break;
+	default:
+		rc = EINVAL;
+		goto fail1;
+	}
+
+	return (0);
+
+fail1:
+	EFSYS_PROBE1(fail1, efx_rc_t, rc);
+	return (rc);
+}
+
 /*
  * This function returns the pf and vf number of a function.  If it is a pf the
  * vf number is 0xffff.  The vf number is the index of the vf on that