AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-08 13:26:40 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

ixgbe: Allow the VF driver to be loaded before the PF driver

Browse Source 
The PF Reset Done bit should not be set in the extended control register
until the PF has actually completed the bring up process.  It is a mis-
interpretation of the purpose of this bit to assume it should be set
when the physical reset of the device is done.  Instead it should be used
to indicate to the VFs when the PF is ready to provide them with required
services.  This is not until after the PF is finished coming up and ready
to process mailbox events.

Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Greg Rose 2010-01-22 22:46:22 +00:00 committed by David S. Miller
parent ef291b8c71
commit c9205697c7
2 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ixgbe/ixgbe_82599.c
View File

@ -890,7 +890,7 @@ static s32 ixgbe_setup_copper_link_82599(struct ixgbe_hw *hw,
static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
{
s32 status = 0;
u32 ctrl, ctrl_ext;
u32 ctrl;
u32 i;
u32 autoc;
u32 autoc2;
@ -945,10 +945,6 @@ static s32 ixgbe_reset_hw_82599(struct ixgbe_hw *hw)
status = IXGBE_ERR_RESET_FAILED;
hw_dbg(hw, "Reset polling failed to complete.\n");
}
/* Clear PF Reset Done bit so PF/VF Mail Ops can work */
ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD;
IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
msleep(50);

7
drivers/net/ixgbe/ixgbe_main.c
View File

@ -2826,6 +2826,7 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
u32 txdctl, rxdctl, mhadd;
u32 dmatxctl;
u32 gpie;
u32 ctrl_ext;
ixgbe_get_hw_control(adapter);
@ -3015,6 +3016,12 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter)
adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE;
adapter->link_check_timeout = jiffies;
mod_timer(&adapter->watchdog_timer, jiffies);
/* Set PF Reset Done bit so PF/VF Mail Ops can work */
ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT);
ctrl_ext |= IXGBE_CTRL_EXT_PFRSTD;
IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext);
return 0;
}