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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>
This commit is contained in:
Steve Wise 2009-03-24 20:44:18 -07:00 committed by Roland Dreier
parent 4263289630
commit d1fbe04eee
2 changed files with 20 additions and 0 deletions
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17
drivers/infiniband/hw/cxgb3/cxio_hal.c
View File

@ -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) {

3
drivers/infiniband/hw/cxgb3/cxio_hal.h
View File

@ -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)