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MFC r301292: When negotiating MSIX parameters, give other head time to see
authormav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 15 Jun 2016 01:41:43 +0000 (01:41 +0000)
committermav <mav@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Wed, 15 Jun 2016 01:41:43 +0000 (01:41 +0000)
commit925d80671d41605139a95e05b049c2bffc9872f8
tree6d8b3b41293c7fc29d58250aec594d834e78c21c
parent67350b93d6a1c43d0bb437bfd58e7cb673b9c521
MFC r301292: When negotiating MSIX parameters, give other head time to see
our NTB_MSIX_RECEIVED status, before making upper layers overwrite it.

This is not completely perfect, but now it works better then before.

Sponsored by: iXsystems, Inc.

git-svn-id: svn://svn.freebsd.org/base/stable/10@301903 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
sys/dev/ntb/ntb_hw/ntb_hw.c