svn commit: r259487 - head/sys/dev/netmap

[Luigi Rizzo]

Author: luigi
Date: Mon Dec 16 23:57:43 2013
New Revision: 259487
URL: http://svnweb.freebsd.org/changeset/base/259487

Log:
  fix the build using __builtin_prefetch() instead of redefining prefetch()

Modified:
  head/sys/dev/netmap/ixgbe_netmap.h
  head/sys/dev/netmap/netmap_kern.h
  head/sys/dev/netmap/netmap_vale.c

Modified: head/sys/dev/netmap/ixgbe_netmap.h
==============================================================================
--- head/sys/dev/netmap/ixgbe_netmap.h  Mon Dec 16 22:26:25 2013        
(r259486)
+++ head/sys/dev/netmap/ixgbe_netmap.h  Mon Dec 16 23:57:43 2013        
(r259487)
@@ -220,8 +220,8 @@ ixgbe_netmap_txsync(struct netmap_adapte
        if (nm_i != cur) {      /* we have new packets to send */
                nic_i = netmap_idx_k2n(kring, nm_i);
 
-               prefetch(&ring->slot[nm_i]);
-               prefetch(&txr->tx_buffers[nic_i]);
+               __builtin_prefetch(&ring->slot[nm_i]);
+               __builtin_prefetch(&txr->tx_buffers[nic_i]);
 
                for (n = 0; nm_i != cur; n++) {
                        struct netmap_slot *slot = &ring->slot[nm_i];
@@ -237,8 +237,8 @@ ixgbe_netmap_txsync(struct netmap_adapte
                                IXGBE_TXD_CMD_RS : 0;
 
                        /* prefetch for next round */
-                       prefetch(&ring->slot[nm_i + 1]);
-                       prefetch(&txr->tx_buffers[nic_i + 1]);
+                       __builtin_prefetch(&ring->slot[nm_i + 1]);
+                       __builtin_prefetch(&txr->tx_buffers[nic_i + 1]);
 
                        NM_CHECK_ADDR_LEN(addr, len);
 

Modified: head/sys/dev/netmap/netmap_kern.h
==============================================================================
--- head/sys/dev/netmap/netmap_kern.h   Mon Dec 16 22:26:25 2013        
(r259486)
+++ head/sys/dev/netmap/netmap_kern.h   Mon Dec 16 23:57:43 2013        
(r259487)
@@ -61,7 +61,6 @@
 #define NM_ATOMIC_TEST_AND_SET(p)       (!atomic_cmpset_acq_int((p), 0, 1))
 #define NM_ATOMIC_CLEAR(p)              atomic_store_rel_int((p), 0)
 
-#define prefetch(x)     __builtin_prefetch(x)
 
 MALLOC_DECLARE(M_NETMAP);
 

Modified: head/sys/dev/netmap/netmap_vale.c
==============================================================================
--- head/sys/dev/netmap/netmap_vale.c   Mon Dec 16 22:26:25 2013        
(r259486)
+++ head/sys/dev/netmap/netmap_vale.c   Mon Dec 16 23:57:43 2013        
(r259487)
@@ -79,8 +79,6 @@ __FBSDID("$FreeBSD$");
 #include <sys/endian.h>
 #include <sys/refcount.h>
 
-// #define prefetch(x) __builtin_prefetch(x)
-
 
 #define BDG_RWLOCK_T           struct rwlock // struct rwlock
 
@@ -1003,7 +1001,7 @@ nm_bdg_preflush(struct netmap_vp_adapter
                ft[ft_i].ft_next = NM_FT_NULL;
                buf = ft[ft_i].ft_buf = (slot->flags & NS_INDIRECT) ?
                        (void *)(uintptr_t)slot->ptr : BDG_NMB(&na->up, slot);
-               prefetch(buf);
+               __builtin_prefetch(buf);
                ++ft_i;
                if (slot->flags & NS_MOREFRAG) {
                        frags++;
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