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i40e/virtchnl: refactor code for validate checks

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This change updates the arguments passed to the validate function
and fixes the caller, as well as uses the new return values added to
virtchnl.h

One other minor tweak, remove a duplicate set to zero of valid_len.

This is in preparation for moving the function to virtchnl.h.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jesse Brandeburg 2017-05-11 11:23:14 -07:00 committed by Jeff Kirsher
parent eedcfef85b
commit 764430ce6f
2 changed files with 37 additions and 16 deletions
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36
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
View File

@ -2536,15 +2536,16 @@ err:
/**
* i40e_vc_validate_vf_msg
* @vf: pointer to the VF info
* @ver: Virtchnl version info
* @v_opcode: Opcode for the message
* @msg: pointer to the msg buffer
* @msglen: msg length
* @msghndl: msg handle
*
* validate msg
* validate msg format against struct for each opcode
**/
static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
u32 v_retval, u8 *msg, u16 msglen)
static int
i40e_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,
u8 *msg, u16 msglen)
{
bool err_msg_format = false;
int valid_len = 0;
@ -2557,7 +2558,7 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
case VIRTCHNL_OP_RESET_VF:
break;
case VIRTCHNL_OP_GET_VF_RESOURCES:
if (VF_IS_V11(&vf->vf_ver))
if (VF_IS_V11(ver))
valid_len = sizeof(u32);
break;
case VIRTCHNL_OP_CONFIG_TX_QUEUE:
@ -2633,7 +2634,6 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
err_msg_format = true;
break;
case VIRTCHNL_OP_RELEASE_IWARP_IRQ_MAP:
valid_len = 0;
break;
case VIRTCHNL_OP_CONFIG_IWARP_IRQ_MAP:
valid_len = sizeof(struct virtchnl_iwarp_qvlist_info);
@ -2673,15 +2673,13 @@ static int i40e_vc_validate_vf_msg(struct i40e_vf *vf, u32 v_opcode,
case VIRTCHNL_OP_EVENT:
case VIRTCHNL_OP_UNKNOWN:
default:
return -EPERM;
return VIRTCHNL_ERR_PARAM;
}
/* few more checks */
if ((valid_len != msglen) || (err_msg_format)) {
i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
return -EINVAL;
} else {
return 0;
}
if ((valid_len != msglen) || (err_msg_format))
return VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH;
return 0;
}
/**
@ -2713,7 +2711,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
return I40E_ERR_PARAM;
/* perform basic checks on the msg */
ret = i40e_vc_validate_vf_msg(vf, v_opcode, v_retval, msg, msglen);
ret = i40e_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
/* perform additional checks specific to this driver */
if (v_opcode == VIRTCHNL_OP_CONFIG_RSS_KEY) {
@ -2729,9 +2727,15 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, s16 vf_id, u32 v_opcode,
}
if (ret) {
i40e_vc_send_resp_to_vf(vf, v_opcode, I40E_ERR_PARAM);
dev_err(&pf->pdev->dev, "Invalid message from VF %d, opcode %d, len %d\n",
local_vf_id, v_opcode, msglen);
return ret;
switch (ret) {
case VIRTCHNL_ERR_PARAM:
return -EPERM;
default:
return -EINVAL;
}
}
switch (v_opcode) {

17
include/linux/avf/virtchnl.h
View File

@ -53,6 +53,23 @@
* its queues, optionally add MAC and VLAN filters, and process traffic.
*/
/* START GENERIC DEFINES
* Need to ensure the following enums and defines hold the same meaning and
* value in current and future projects
*/
/* Error Codes */
enum virtchnl_status_code {
VIRTCHNL_STATUS_SUCCESS = 0,
VIRTCHNL_ERR_PARAM = -5,
VIRTCHNL_STATUS_ERR_OPCODE_MISMATCH = -38,
VIRTCHNL_STATUS_ERR_CQP_COMPL_ERROR = -39,
VIRTCHNL_STATUS_ERR_INVALID_VF_ID = -40,
VIRTCHNL_STATUS_NOT_SUPPORTED = -64,
};
/* END GENERIC DEFINES */
/* Opcodes for VF-PF communication. These are placed in the v_opcode field
* of the virtchnl_msg structure.
*/