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ixl(4): Fix errors in queue interrupt setup in MSIX mode.

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- I40E_PFINT_DYN_CTLN needs to be cleared, and not have a queue index
  written to it.
- The interrupt linked list for each queue is changed to only include
  the queue's Rx and Tx queues.

Differential Revision:	https://reviews.freebsd.org/D5206
Reviewed by:	sbruno
Tested by:	jeffrey.e.pieper@intel.com
Sponsored by:	Intel Corporation
This commit is contained in:
erj 2016-02-19 22:45:09 +00:00
parent 2465eca61d
commit 225a8e89c9
1 changed files with 3 additions and 5 deletions
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8
sys/dev/ixl/if_ixl.c
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@ -2246,7 +2246,8 @@ ixl_configure_msix(struct ixl_pf *pf)
/* Next configure the queues */
for (int i = 0; i < vsi->num_queues; i++, vector++) {
wr32(hw, I40E_PFINT_DYN_CTLN(i), i);
wr32(hw, I40E_PFINT_DYN_CTLN(i), 0);
/* First queue type is RX / type 0 */
wr32(hw, I40E_PFINT_LNKLSTN(i), i);
reg = I40E_QINT_RQCTL_CAUSE_ENA_MASK |
@ -2259,11 +2260,8 @@ ixl_configure_msix(struct ixl_pf *pf)
reg = I40E_QINT_TQCTL_CAUSE_ENA_MASK |
(IXL_TX_ITR << I40E_QINT_TQCTL_ITR_INDX_SHIFT) |
(vector << I40E_QINT_TQCTL_MSIX_INDX_SHIFT) |
((i+1) << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT) |
(IXL_QUEUE_EOL << I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT) |
(I40E_QUEUE_TYPE_RX << I40E_QINT_TQCTL_NEXTQ_TYPE_SHIFT);
if (i == (vsi->num_queues - 1))
reg |= (IXL_QUEUE_EOL
<< I40E_QINT_TQCTL_NEXTQ_INDX_SHIFT);
wr32(hw, I40E_QINT_TQCTL(i), reg);
}
}