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ixgbe: fix vf irq storm when running on Xen Dom0.

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Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: David Marchand <david.marchand@6wind.com>
This commit is contained in:
Bruce Richardson 2014-02-17 19:57:55 +01:00 committed by David Marchand
parent 429c6d86b3
commit 4074a5d806
2 changed files with 16 additions and 2 deletions
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7
lib/librte_pmd_ixgbe/ixgbe_ethdev.c
View File

@ -1394,6 +1394,9 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
struct rte_eth_link link;
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);
int vf;
PMD_INIT_FUNC_TRACE();
@ -1407,6 +1410,10 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
/* stop adapter */
ixgbe_stop_adapter(hw);
for (vf = 0; vfinfo != NULL &&
vf < dev->pci_dev->max_vfs; vf++)
vfinfo[vf].clear_to_send = false;
/* Turn off the laser */
ixgbe_disable_tx_laser(hw);

11
lib/librte_pmd_ixgbe/ixgbe_pf.c
View File

@ -473,6 +473,8 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE];
int32_t retval;
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);
retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
if (retval) {
@ -489,7 +491,9 @@ ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
/* perform VF reset */
if (msgbuf[0] == IXGBE_VF_RESET) {
return ixgbe_vf_reset(dev, vf, msgbuf);
int ret = ixgbe_vf_reset(dev, vf, msgbuf);
vfinfo[vf].clear_to_send = true;
return ret;
}
/* check & process VF to PF mailbox message */
@ -531,8 +535,11 @@ ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf)
uint32_t msg = IXGBE_VT_MSGTYPE_NACK;
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);
ixgbe_write_mbx(hw, &msg, 1, vf);
if (!vfinfo[vf].clear_to_send)
ixgbe_write_mbx(hw, &msg, 1, vf);
}
void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev)