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authorSteve Wise <swise@opengridcomputing.com>2009-03-24 20:44:18 -0700
committerRoland Dreier <rolandd@cisco.com>2009-03-24 20:44:18 -0700
commitd1fbe04eee32ed2642cff139b8592866f1d43f41 (patch)
treeb3a934fd0415f794fe7acca9bfbf9905e5967f38 /drivers/infiniband
parent426328963078f644c7194403a308588cf684d4c6 (diff)
downloadop-kernel-dev-d1fbe04eee32ed2642cff139b8592866f1d43f41.zip
op-kernel-dev-d1fbe04eee32ed2642cff139b8592866f1d43f41.tar.gz
RDMA/cxgb3: Enforce required firmware
The cxgb3 NIC driver can handle more firmware versions than iw_cxgb3, and since commit 8207befa ("cxgb3: untie strict FW matching") cxgb3 will load with firmware versions that iw_cxgb3 can't handle. The FW major number indicates a specific interface between the FW and iw_cxgb3. Thus if the major number of the running firmware does not match the required version compiled into iw_cxgb3, then iw_cxgb3 must not register that device. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_hal.c17
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_hal.h3
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c
index c2740e7..d4d7204 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c
@@ -938,6 +938,23 @@ int cxio_rdev_open(struct cxio_rdev *rdev_p)
if (!rdev_p->t3cdev_p)
rdev_p->t3cdev_p = dev2t3cdev(netdev_p);
rdev_p->t3cdev_p->ulp = (void *) rdev_p;
+
+ err = rdev_p->t3cdev_p->ctl(rdev_p->t3cdev_p, GET_EMBEDDED_INFO,
+ &(rdev_p->fw_info));
+ if (err) {
+ printk(KERN_ERR "%s t3cdev_p(%p)->ctl returned error %d.\n",
+ __func__, rdev_p->t3cdev_p, err);
+ goto err1;
+ }
+ if (G_FW_VERSION_MAJOR(rdev_p->fw_info.fw_vers) != CXIO_FW_MAJ) {
+ printk(KERN_ERR MOD "fatal firmware version mismatch: "
+ "need version %u but adapter has version %u\n",
+ CXIO_FW_MAJ,
+ G_FW_VERSION_MAJOR(rdev_p->fw_info.fw_vers));
+ err = -EINVAL;
+ goto err1;
+ }
+
err = rdev_p->t3cdev_p->ctl(rdev_p->t3cdev_p, RDMA_GET_PARAMS,
&(rdev_p->rnic_info));
if (err) {
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h
index 656fe47..e44dc22 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h
@@ -61,6 +61,8 @@
#define T3_MAX_DEV_NAME_LEN 32
+#define CXIO_FW_MAJ 7
+
struct cxio_hal_ctrl_qp {
u32 wptr;
u32 rptr;
@@ -108,6 +110,7 @@ struct cxio_rdev {
struct gen_pool *pbl_pool;
struct gen_pool *rqt_pool;
struct list_head entry;
+ struct ch_embedded_info fw_info;
};
static inline int cxio_num_stags(struct cxio_rdev *rdev_p)
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