From: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Sun, 19 Aug 2012 23:53:11 +0000 (+0800)
Subject: jme: Cache align RX/TX data structure
X-Git-Tag: v3.2.0~314
X-Git-Url: http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/594bec47f7b6bbb706d6d817d8435dc5034404b5

jme: Cache align RX/TX data structure
---

diff --git a/sys/dev/netif/jme/if_jme.c b/sys/dev/netif/jme/if_jme.c
index a913195..acf872d 100644
--- a/sys/dev/netif/jme/if_jme.c
+++ b/sys/dev/netif/jme/if_jme.c
@@ -661,6 +661,9 @@ jme_attach(device_t dev)
 	int error = 0, i, j, rx_desc_cnt;
 	uint8_t eaddr[ETHER_ADDR_LEN];
 
+	device_printf(dev, "rxdata %zu, chain_data %zu\n",
+	    sizeof(struct jme_rxdata), sizeof(struct jme_chain_data));
+
 	lwkt_serialize_init(&sc->jme_serialize);
 	lwkt_serialize_init(&sc->jme_cdata.jme_tx_serialize);
 	for (i = 0; i < JME_NRXRING_MAX; ++i) {
diff --git a/sys/dev/netif/jme/if_jmevar.h b/sys/dev/netif/jme/if_jmevar.h
index 422340c..2bc0be3 100644
--- a/sys/dev/netif/jme/if_jmevar.h
+++ b/sys/dev/netif/jme/if_jmevar.h
@@ -162,7 +162,7 @@ struct jme_rxdata {
 	struct mbuf		*jme_rxtail;
 
 	u_long			jme_rx_pkt;
-};
+} __cachealign;
 
 struct jme_chain_data {
 	/*
@@ -199,7 +199,7 @@ struct jme_chain_data {
 
 	int			jme_rx_ring_cnt;
 	struct jme_rxdata	jme_rx_data[JME_NRXRING_MAX];
-};
+} __cachealign;
 
 struct jme_msix_data {
 	int			jme_msix_rid;