Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
new file mode 100644
index 0000000..cc1945b
--- /dev/null
+++ b/drivers/block/aoe/aoenet.c
@@ -0,0 +1,172 @@
+/* Copyright (c) 2004 Coraid, Inc. See COPYING for GPL terms. */
+/*
+ * aoenet.c
+ * Ethernet portion of AoE driver
+ */
+
+#include <linux/hdreg.h>
+#include <linux/blkdev.h>
+#include <linux/netdevice.h>
+#include "aoe.h"
+
+#define NECODES 5
+
+static char *aoe_errlist[] =
+{
+ "no such error",
+ "unrecognized command code",
+ "bad argument parameter",
+ "device unavailable",
+ "config string present",
+ "unsupported version"
+};
+
+enum {
+ IFLISTSZ = 1024,
+};
+
+static char aoe_iflist[IFLISTSZ];
+
+int
+is_aoe_netif(struct net_device *ifp)
+{
+ register char *p, *q;
+ register int len;
+
+ if (aoe_iflist[0] == '\0')
+ return 1;
+
+ for (p = aoe_iflist; *p; p = q + strspn(q, WHITESPACE)) {
+ q = p + strcspn(p, WHITESPACE);
+ if (q != p)
+ len = q - p;
+ else
+ len = strlen(p); /* last token in aoe_iflist */
+
+ if (strlen(ifp->name) == len && !strncmp(ifp->name, p, len))
+ return 1;
+ if (q == p)
+ break;
+ }
+
+ return 0;
+}
+
+int
+set_aoe_iflist(const char __user *user_str, size_t size)
+{
+ if (size >= IFLISTSZ)
+ return -EINVAL;
+
+ if (copy_from_user(aoe_iflist, user_str, size)) {
+ printk(KERN_INFO "aoe: %s: copy from user failed\n", __FUNCTION__);
+ return -EFAULT;
+ }
+ aoe_iflist[size] = 0x00;
+ return 0;
+}
+
+u64
+mac_addr(char addr[6])
+{
+ u64 n = 0;
+ char *p = (char *) &n;
+
+ memcpy(p + 2, addr, 6); /* (sizeof addr != 6) */
+
+ return __be64_to_cpu(n);
+}
+
+static struct sk_buff *
+skb_check(struct sk_buff *skb)
+{
+ if (skb_is_nonlinear(skb))
+ if ((skb = skb_share_check(skb, GFP_ATOMIC)))
+ if (skb_linearize(skb, GFP_ATOMIC) < 0) {
+ dev_kfree_skb(skb);
+ return NULL;
+ }
+ return skb;
+}
+
+void
+aoenet_xmit(struct sk_buff *sl)
+{
+ struct sk_buff *skb;
+
+ while ((skb = sl)) {
+ sl = sl->next;
+ skb->next = skb->prev = NULL;
+ dev_queue_xmit(skb);
+ }
+}
+
+/*
+ * (1) len doesn't include the header by default. I want this.
+ */
+static int
+aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt)
+{
+ struct aoe_hdr *h;
+ ulong n;
+
+ skb = skb_check(skb);
+ if (!skb)
+ return 0;
+
+ if (!is_aoe_netif(ifp))
+ goto exit;
+
+ //skb->len += ETH_HLEN; /* (1) */
+ skb_push(skb, ETH_HLEN); /* (1) */
+
+ h = (struct aoe_hdr *) skb->mac.raw;
+ n = __be32_to_cpu(*((u32 *) h->tag));
+ if ((h->verfl & AOEFL_RSP) == 0 || (n & 1<<31))
+ goto exit;
+
+ if (h->verfl & AOEFL_ERR) {
+ n = h->err;
+ if (n > NECODES)
+ n = 0;
+ if (net_ratelimit())
+ printk(KERN_ERR "aoe: aoenet_rcv: error packet from %d.%d; "
+ "ecode=%d '%s'\n",
+ __be16_to_cpu(*((u16 *) h->major)), h->minor,
+ h->err, aoe_errlist[n]);
+ goto exit;
+ }
+
+ switch (h->cmd) {
+ case AOECMD_ATA:
+ aoecmd_ata_rsp(skb);
+ break;
+ case AOECMD_CFG:
+ aoecmd_cfg_rsp(skb);
+ break;
+ default:
+ printk(KERN_INFO "aoe: aoenet_rcv: unknown cmd %d\n", h->cmd);
+ }
+exit:
+ dev_kfree_skb(skb);
+ return 0;
+}
+
+static struct packet_type aoe_pt = {
+ .type = __constant_htons(ETH_P_AOE),
+ .func = aoenet_rcv,
+};
+
+int __init
+aoenet_init(void)
+{
+ dev_add_pack(&aoe_pt);
+ return 0;
+}
+
+void
+aoenet_exit(void)
+{
+ dev_remove_pack(&aoe_pt);
+}
+
