David Somayajulu wrote:
This patch adds support to the scsi transport layer for passing hba specific netlink messages to a low level driver. Also support is added to the fc transport, to enable an FC hba driver to post netlink message to a specific user process.
Signed-off-by: David C Somayajulu <david.somayajulu@xxxxxxxxxx>
---
drivers/scsi/scsi_netlink.c | 13 +++++++
drivers/scsi/scsi_transport_fc.c | 72 ++++++++++++++++++++++++++++++++++++++
include/scsi/scsi_host.h | 6 +++
include/scsi/scsi_netlink.h | 3 +-
include/scsi/scsi_transport_fc.h | 2 +
5 files changed, 95 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c
index ae7ed9a..3bc85c9 100644
--- a/drivers/scsi/scsi_netlink.c
+++ b/drivers/scsi/scsi_netlink.c
@@ -24,6 +24,7 @@
#include <net/sock.h>
#include <net/netlink.h>
+#include <scsi/scsi_host.h>
#include <scsi/scsi_netlink.h>
#include "scsi_priv.h"
@@ -47,6 +48,7 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
struct scsi_nl_hdr *hdr;
uint32_t rlen;
int err;
+ struct Scsi_Host *shost;
while (skb->len >= NLMSG_SPACE(0)) {
err = 0;
@@ -89,6 +91,17 @@ scsi_nl_rcv_msg(struct sk_buff *skb)
/*
* We currently don't support anyone sending us a message
*/
+ if (hdr->msgtype == SCSI_NL_HOST_PRIVATE) {
+ shost = scsi_host_lookup(hdr->host_no);
+ if (!shost) {
+ printk(KERN_ERR "%s: scsi_host_lookup failed "
+ "host no %u\n", __FUNCTION__, hdr->host_no);
+ } else if (shost->hostt->netlink_rcv_msg) {
+ err = shost->hostt->netlink_rcv_msg(shost,
+ (void *)((char *)hdr+sizeof(*hdr)),
+ hdr->msglen, NETLINK_CREDS(skb)->pid);
+ }
+ }
Finally getting this done :) Thanks!
If shost is not null you need to do a scsi_host_put hen you are done
with the host.
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
