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cxgb4: halt chip before flashing PHY firmware image 

When using firmware-assisted PHY firmware image write to flash,
halt the chip before beginning the flash write operation to allow
the running firmware to store the image persistently. Otherwise,
the running firmware will only store the PHY image in local on-chip
RAM, which will be lost after next reset.

Fixes: 4ee339e1e9 ("cxgb4: add support to flash PHY image")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rahul Lakkireddy 2021-06-11 12:17:47 +05:30 committed by David S. Miller
parent f046bd0ae1
commit 6d297540f7
1 changed files with 20 additions and 4 deletions
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24
drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
View File

@ -1337,11 +1337,27 @@ static int cxgb4_ethtool_flash_phy(struct net_device *netdev,
return ret;
}
ret = t4_load_phy_fw(adap, MEMWIN_NIC, NULL, data, size);
if (ret)
dev_err(adap->pdev_dev, "Failed to load PHY FW\n");
/* We have to RESET the chip/firmware because we need the
* chip in uninitialized state for loading new PHY image.
* Otherwise, the running firmware will only store the PHY
* image in local RAM which will be lost after next reset.
*/
ret = t4_fw_reset(adap, adap->mbox, PIORSTMODE_F | PIORST_F);
if (ret < 0) {
dev_err(adap->pdev_dev,
"Set FW to RESET for flashing PHY FW failed. ret: %d\n",
ret);
return ret;
}
ret = t4_load_phy_fw(adap, MEMWIN_NIC, NULL, data, size);
if (ret < 0) {
dev_err(adap->pdev_dev, "Failed to load PHY FW. ret: %d\n",
ret);
return ret;
}
return 0;
}
static int cxgb4_ethtool_flash_fw(struct net_device *netdev,