diff options
| author |   Mintz, Yuval <Yuval.Mintz@cavium.com> | 2017-03-28 15:12:53 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-03-28 18:05:23 -0700 |
| commit | 18a69e368b22817575d2052b2c8dd8427bb4f827 (patch) | |
| tree | 825f2cbdc7f0765734479cc3d47bd93d0e907f04 /drivers/net/ethernet/qlogic/qed/qed_dev.c | |
| parent | qed: Move to new load request scheme (diff) | |
| download | linux-dev-18a69e368b22817575d2052b2c8dd8427bb4f827.tar.xz linux-dev-18a69e368b22817575d2052b2c8dd8427bb4f827.zip | |
qed: Send pf-flr as part of initialization
During HW initialization, driver would set various registers to their
needed values - but it assumes all registers start at their reset-value,
so there's no need to re-configure a register's default value.
This assumption might be incorrect, e.g., in case of preboot driver
running and initializing the driver prior to our driver.
To overcome this, we now ask management firmware to initiate a PF-flr
early during the initialization sequence. That would return everything
in the PF's scope back to default and prevent previous configurations
from still being applied.
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_dev.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_dev.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index 759b819935e4..e4b1450ace0c 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -2280,6 +2280,15 @@ static int qed_hw_prepare_single(struct qed_hwfn *p_hwfn, goto err2; } + /* Sending a mailbox to the MFW should be done after qed_get_hw_info() + * is called as it sets the ports number in an engine. + */ + if (IS_LEAD_HWFN(p_hwfn)) { + rc = qed_mcp_initiate_pf_flr(p_hwfn, p_hwfn->p_main_ptt); + if (rc) + DP_NOTICE(p_hwfn, "Failed to initiate PF FLR\n"); + } + /* Allocate the init RT array and initialize the init-ops engine */ rc = qed_init_alloc(p_hwfn); if (rc) |