Author: carl
Date: Thu Sep 5 22:52:40 2013
New Revision: 255269
URL: http://svnweb.freebsd.org/changeset/base/255269
Log:
Throw a bit to enable the link to come up on Xeon.
Approved by: jimharris
Sponsored by: Intel
Modified:
head/sys/dev/ntb/ntb_hw/ntb_hw.c
Modified: head/sys/dev/ntb/ntb_hw/ntb_hw.c
==============================================================================
--- head/sys/dev/ntb/ntb_hw/ntb_hw.c Thu Sep 5 22:46:48 2013
(r255268)
+++ head/sys/dev/ntb/ntb_hw/ntb_hw.c Thu Sep 5 22:52:40 2013
(r255269)
@@ -637,6 +637,10 @@ ntb_setup_xeon(struct ntb_softc *ntb)
/* Enable Bus Master and Memory Space on the secondary side */
ntb_write_2(ntb->reg_ofs.spci_cmd,
PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN);
+
+ /* Enable link training */
+ ntb_write_4(ntb->reg_ofs.lnk_cntl,
+ NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP);
return (0);
}
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