svn commit: r344669 - head/sys/dev/isp

[Alexander Motin]

Author: mav
Date: Thu Feb 28 21:07:16 2019
New Revision: 344669
URL: https://svnweb.freebsd.org/changeset/base/344669

Log:
  Limit 24xx adapters to only MSI interrupts by default.
  
  This was actually the known good configuration we used before.
  Single MSI-X configuration doesn't even work there on my tests, just due
  to lack of documentation not sure whether by design or I am doing something
  wrong.
  
  PR:		233654
  MFC after:	1 week

Modified:
  head/sys/dev/isp/isp_pci.c

Modified: head/sys/dev/isp/isp_pci.c
==============================================================================
--- head/sys/dev/isp/isp_pci.c	Thu Feb 28 20:57:41 2019	(r344668)
+++ head/sys/dev/isp/isp_pci.c	Thu Feb 28 21:07:16 2019	(r344669)
@@ -1910,7 +1910,7 @@ isp_pci_irqsetup(ispsoftc_t *isp)
 
 	ISP_UNLOCK(isp);
 	if (ISP_CAP_MSIX(isp)) {
-		max_irq = IS_26XX(isp) ? 3 : (IS_25XX(isp) ? 2 : 1);
+		max_irq = IS_26XX(isp) ? 3 : (IS_25XX(isp) ? 2 : 0);
 		resource_int_value(device_get_name(dev),
 		    device_get_unit(dev), "msix", &max_irq);
 		max_irq = imin(ISP_MAX_IRQS, max_irq);