diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-07-22 22:54:50 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-26 16:37:41 -0700 |
| commit | 402b764533e9d973952573df7ff96c41189e1a14 (patch) | |
| tree | f636e7e4421b70da55990ceb594ac1408c9215b2 /drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c | |
| parent | 6b6948dda798637aea237df0d0c8bcba8fa653bc (diff) | |
cxgb4: Allow firmware flash, only if cxgb4 is the master driver
Adapter can go for a toss, if cxgb4 is loaded as slave and we try to
upgrade the firmware. So add a check for the same before flashing
firmware using ethtool.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c index 687acf71fa15..5eedb98ff581 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c @@ -925,6 +925,20 @@ static int set_flash(struct net_device *netdev, struct ethtool_flash *ef) const struct firmware *fw; struct adapter *adap = netdev2adap(netdev); unsigned int mbox = PCIE_FW_MASTER_M + 1; + u32 pcie_fw; + unsigned int master; + u8 master_vld = 0; + + pcie_fw = t4_read_reg(adap, PCIE_FW_A); + master = PCIE_FW_MASTER_G(pcie_fw); + if (pcie_fw & PCIE_FW_MASTER_VLD_F) + master_vld = 1; + /* if csiostor is the master return */ + if (master_vld && (master != adap->pf)) { + dev_warn(adap->pdev_dev, + "cxgb4 driver needs to be loaded as MASTER to support FW flash\n"); + return -EOPNOTSUPP; + } ef->data[sizeof(ef->data) - 1] = '\0'; ret = request_firmware(&fw, ef->data, adap->pdev_dev); |