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crypto: qat - add VF and PF wrappers to common send function

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The send function, adf_iov_putmsg(), is shared by both PF and VF.
This commit provides two direction specific APIs, adf_send_pf2vf_msg()
and adf_send_vf2pf_msg() which decouple the implementation, which can
change and evolve over time, from the user.

With this change, the adf_iov_putmsg() is now isolated inside the file
adf_pf2vf_msg.c and has been marked as static.

Signed-off-by: Marco Chiappero <marco.chiappero@intel.com>
Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Marco Chiappero 2021-09-28 12:44:38 +01:00 committed by Herbert Xu
parent 71b5f2ab5e
commit 7a73c4622a
3 changed files with 36 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/crypto/qat/qat_common/adf_common_drv.h
View File

@ -62,7 +62,6 @@ int adf_dev_start(struct adf_accel_dev *accel_dev);
void adf_dev_stop(struct adf_accel_dev *accel_dev);
void adf_dev_shutdown(struct adf_accel_dev *accel_dev);
int adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr);
void adf_pf2vf_notify_restarting(struct adf_accel_dev *accel_dev);
int adf_enable_vf2pf_comms(struct adf_accel_dev *accel_dev);
void adf_vf2pf_req_hndl(struct adf_accel_vf_info *vf_info);
@ -200,7 +199,7 @@ void adf_enable_vf2pf_interrupts(struct adf_accel_dev *accel_dev,
void adf_enable_pf2vf_interrupts(struct adf_accel_dev *accel_dev);
void adf_disable_pf2vf_interrupts(struct adf_accel_dev *accel_dev);
void adf_schedule_vf2pf_handler(struct adf_accel_vf_info *vf_info);
int adf_send_vf2pf_msg(struct adf_accel_dev *accel_dev, u32 msg);
int adf_vf2pf_notify_init(struct adf_accel_dev *accel_dev);
void adf_vf2pf_notify_shutdown(struct adf_accel_dev *accel_dev);
int adf_init_pf_wq(void);

37
drivers/crypto/qat/qat_common/adf_pf2vf_msg.c
View File

@ -138,7 +138,7 @@ out:
*
* Return: 0 on success, error code otherwise.
*/
int adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
static int adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
{
u32 count = 0;
int ret;
@ -152,6 +152,35 @@ int adf_iov_putmsg(struct adf_accel_dev *accel_dev, u32 msg, u8 vf_nr)
return ret;
}
/**
* adf_send_pf2vf_msg() - send PF to VF message
* @accel_dev: Pointer to acceleration device
* @vf_nr: VF number to which the message will be sent
* @msg: Message to send
*
* This function allows the PF to send a message to a specific VF.
*
* Return: 0 on success, error code otherwise.
*/
static int adf_send_pf2vf_msg(struct adf_accel_dev *accel_dev, u8 vf_nr, u32 msg)
{
return adf_iov_putmsg(accel_dev, msg, vf_nr);
}
/**
* adf_send_vf2pf_msg() - send VF to PF message
* @accel_dev: Pointer to acceleration device
* @msg: Message to send
*
* This function allows the VF to send a message to the PF.
*
* Return: 0 on success, error code otherwise.
*/
int adf_send_vf2pf_msg(struct adf_accel_dev *accel_dev, u32 msg)
{
return adf_iov_putmsg(accel_dev, msg, 0);
}
void adf_vf2pf_req_hndl(struct adf_accel_vf_info *vf_info)
{
struct adf_accel_dev *accel_dev = vf_info->accel_dev;
@ -248,7 +277,7 @@ void adf_vf2pf_req_hndl(struct adf_accel_vf_info *vf_info)
goto err;
}
if (resp && adf_iov_putmsg(accel_dev, resp, vf_nr))
if (resp && adf_send_pf2vf_msg(accel_dev, vf_nr, resp))
dev_err(&GET_DEV(accel_dev), "Failed to send response to VF\n");
out:
@ -269,7 +298,7 @@ void adf_pf2vf_notify_restarting(struct adf_accel_dev *accel_dev)
int i, num_vfs = pci_num_vf(accel_to_pci_dev(accel_dev));
for (i = 0, vf = accel_dev->pf.vf_info; i < num_vfs; i++, vf++) {
if (vf->init && adf_iov_putmsg(accel_dev, msg, i))
if (vf->init && adf_send_pf2vf_msg(accel_dev, i, msg))
dev_err(&GET_DEV(accel_dev),
"Failed to send restarting msg to VF%d\n", i);
}
@ -290,7 +319,7 @@ static int adf_vf2pf_request_version(struct adf_accel_dev *accel_dev)
reinit_completion(&accel_dev->vf.iov_msg_completion);
/* Send request from VF to PF */
ret = adf_iov_putmsg(accel_dev, msg, 0);
ret = adf_send_vf2pf_msg(accel_dev, msg);
if (ret) {
dev_err(&GET_DEV(accel_dev),
"Failed to send Compatibility Version Request.\n");

4
drivers/crypto/qat/qat_common/adf_vf2pf_msg.c
View File

@ -17,7 +17,7 @@ int adf_vf2pf_notify_init(struct adf_accel_dev *accel_dev)
u32 msg = (ADF_VF2PF_MSGORIGIN_SYSTEM |
(ADF_VF2PF_MSGTYPE_INIT << ADF_VF2PF_MSGTYPE_SHIFT));
if (adf_iov_putmsg(accel_dev, msg, 0)) {
if (adf_send_vf2pf_msg(accel_dev, msg)) {
dev_err(&GET_DEV(accel_dev),
"Failed to send Init event to PF\n");
return -EFAULT;
@ -41,7 +41,7 @@ void adf_vf2pf_notify_shutdown(struct adf_accel_dev *accel_dev)
(ADF_VF2PF_MSGTYPE_SHUTDOWN << ADF_VF2PF_MSGTYPE_SHIFT));
if (test_bit(ADF_STATUS_PF_RUNNING, &accel_dev->status))
if (adf_iov_putmsg(accel_dev, msg, 0))
if (adf_send_vf2pf_msg(accel_dev, msg))
dev_err(&GET_DEV(accel_dev),
"Failed to send Shutdown event to PF\n");
}