Author: np
Date: Fri Jan 16 01:32:40 2015
New Revision: 277226
URL: https://svnweb.freebsd.org/changeset/base/277226
Log:
Allow cxgbe(4) to be built on i386. Driver attach will succeed only on a
subset
of i386 systems.
Modified:
head/sys/dev/cxgbe/t4_main.c
head/sys/dev/cxgbe/t4_mp_ring.c
Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c Fri Jan 16 01:28:28 2015
(r277225)
+++ head/sys/dev/cxgbe/t4_main.c Fri Jan 16 01:32:40 2015
(r277226)
@@ -668,6 +668,14 @@ t4_attach(device_t dev)
goto done;
}
+#if defined(__i386__)
+ if ((cpu_feature & CPUID_CX8) == 0) {
+ device_printf(dev, "64 bit atomics not available.\n");
+ rc = ENOTSUP;
+ goto done;
+ }
+#endif
+
/* Prepare the firmware for operation */
rc = prep_firmware(sc);
if (rc != 0)
Modified: head/sys/dev/cxgbe/t4_mp_ring.c
==============================================================================
--- head/sys/dev/cxgbe/t4_mp_ring.c Fri Jan 16 01:28:28 2015
(r277225)
+++ head/sys/dev/cxgbe/t4_mp_ring.c Fri Jan 16 01:32:40 2015
(r277226)
@@ -38,6 +38,11 @@ __FBSDID("$FreeBSD$");
#include "t4_mp_ring.h"
+#if defined(__i386__)
+#define atomic_cmpset_acq_64 atomic_cmpset_64
+#define atomic_cmpset_rel_64 atomic_cmpset_64
+#endif
+
union ring_state {
struct {
uint16_t pidx_head;
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