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net/ixgbe: add application callback on VF to PF messsage

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call _rte_eth_dev_callback_process from ixgbe_rcv_msg_from_vf function.

The callback asks the user application if it is allowed to perform
the function.

If the cb_param.retval is RTE_PMD_IXGBE_MB_EVENT_PROCEED then continue,
if 0, do nothing and send ACK to VF
if > 1, do nothing and send NAK to VF.

Signed-off-by: Alex Zelezniak <alexz@att.com>
Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
This commit is contained in:
Bernard Iremonger 2016-10-10 15:34:15 +01:00 committed by Thomas Monjalon
parent c1ceaf3ad0
commit 57bee54e5a
2 changed files with 56 additions and 6 deletions
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42
drivers/net/ixgbe/ixgbe_pf.c
View File

@ -1,7 +1,7 @@
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
* Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -51,6 +51,7 @@
#include "base/ixgbe_common.h"
#include "ixgbe_ethdev.h"
#include "rte_pmd_ixgbe.h"
#define IXGBE_MAX_VFTA (128)
#define IXGBE_VF_MSG_SIZE_DEFAULT 1
@ -660,6 +661,7 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct ixgbe_vf_info *vfinfo =
*IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
struct rte_pmd_ixgbe_mb_event_param cb_param;
retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
if (retval) {
@ -674,27 +676,54 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
/* flush the ack before we write any messages back */
IXGBE_WRITE_FLUSH(hw);
/**
* initialise structure to send to user application
* will return response from user in retval field
*/
cb_param.retval = RTE_PMD_IXGBE_MB_EVENT_PROCEED;
cb_param.vfid = vf;
cb_param.msg_type = msgbuf[0] & 0xFFFF;
cb_param.msg = (void *)msgbuf;
/* perform VF reset */
if (msgbuf[0] == IXGBE_VF_RESET) {
int ret = ixgbe_vf_reset(dev, vf, msgbuf);
vfinfo[vf].clear_to_send = true;
/* notify application about VF reset */
_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX, &cb_param);
return ret;
}
/**
* ask user application if we allowed to perform those functions
* if we get cb_param.retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED
* then business as usual,
* if 0, do nothing and send ACK to VF
* if cb_param.retval > 1, do nothing and send NAK to VF
*/
_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX, &cb_param);
retval = cb_param.retval;
/* check & process VF to PF mailbox message */
switch ((msgbuf[0] & 0xFFFF)) {
case IXGBE_VF_SET_MAC_ADDR:
retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
break;
case IXGBE_VF_SET_MULTICAST:
retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
break;
case IXGBE_VF_SET_LPE:
retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
break;
case IXGBE_VF_SET_VLAN:
retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
break;
case IXGBE_VF_API_NEGOTIATE:
retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
@ -704,7 +733,8 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE;
break;
case IXGBE_VF_UPDATE_XCAST_MODE:
retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
break;
default:
PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);

20
drivers/net/ixgbe/rte_pmd_ixgbe.h
View File

@ -180,4 +180,24 @@ int rte_pmd_ixgbe_set_vf_split_drop_en(uint8_t port, uint16_t vf, uint8_t on);
*/
int
rte_pmd_ixgbe_set_vf_vlan_stripq(uint8_t port, uint16_t vf, uint8_t on);
/**
* Response sent back to ixgbe driver from user app after callback
*/
enum rte_pmd_ixgbe_mb_event_rsp {
RTE_PMD_IXGBE_MB_EVENT_NOOP_ACK, /**< skip mbox request and ACK */
RTE_PMD_IXGBE_MB_EVENT_NOOP_NACK, /**< skip mbox request and NACK */
RTE_PMD_IXGBE_MB_EVENT_PROCEED, /**< proceed with mbox request */
RTE_PMD_IXGBE_MB_EVENT_MAX /**< max value of this enum */
};
/**
* Data sent to the user application when the callback is executed.
*/
struct rte_pmd_ixgbe_mb_event_param {
uint16_t vfid; /**< Virtual Function number */
uint16_t msg_type; /**< VF to PF message type, defined in ixgbe_mbx.h */
uint16_t retval; /**< return value */
void *msg; /**< pointer to message */
};
#endif /* _PMD_IXGBE_H_ */