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cnic: Add a signature to indicate valid doorbell offset.

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The buffer that is used to pass doorbell offset to the userspace UIO
driver may contain nonzero value in older versions of bnx2x driver.
Userspace cannot easily tell whether it contains a valid doorbell
offset or not.  With the added signature, userspace will only use
the doorbell offset if the signature is present.

Update version to 2.5.19.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eddie Wai 2013-12-31 23:18:34 -08:00 committed by David S. Miller
parent 487d9edcd2
commit d15e2a92c4
3 changed files with 5 additions and 2 deletions
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1
drivers/net/ethernet/broadcom/cnic.c
View file

@ -5220,6 +5220,7 @@ static void cnic_init_rings(struct cnic_dev *dev)
cnic_ring_ctl(dev, cid, cli, 1);
*cid_ptr = cid >> 4;
*(cid_ptr + 1) = cid * bp->db_size;
*(cid_ptr + 2) = UIO_USE_TX_DOORBELL;
}
}

2
drivers/net/ethernet/broadcom/cnic.h
View file

@ -186,6 +186,8 @@ struct kcq_info {
u16 (*hw_idx)(u16);
};
#define UIO_USE_TX_DOORBELL 0x017855DB
struct cnic_uio_dev {
struct uio_info cnic_uinfo;
u32 uio_dev;

4
drivers/net/ethernet/broadcom/cnic_if.h
View file

@ -14,8 +14,8 @@
#include "bnx2x/bnx2x_mfw_req.h"
#define CNIC_MODULE_VERSION "2.5.18"
#define CNIC_MODULE_RELDATE "Sept 01, 2013"
#define CNIC_MODULE_VERSION "2.5.19"
#define CNIC_MODULE_RELDATE "December 19, 2013"
#define CNIC_ULP_RDMA 0
#define CNIC_ULP_ISCSI 1