The FEC(Forward Error Correction) feature had been disabled
because it increases power consumption. However, some customers
want to use it. This patch enables FEC when EEE(Energy Efficient
Ethernet) is disabled; FEC was already being disabled when EEE
was enabled, but now both are done in the same function. The two
features are not allowed to be enabled at the same time. The two
features cannot both be disabled. If this ability is ever
determined to be needed, we will need to define a new user parameter
to control FEC independently of EEE.
Fixes: d4c9ffd4fe ("ixgbe/base: disable X550em FEC to save power")
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
During init, check the ucode running in the CS4227. If
it is not responding correctly, reset the part. This is
a global reset so it must only be done the first time a
driver loads after power-on.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Because each IOSF access requires the use of multiple registers,
use a semaphore to serialize those accesses.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Add a helper function to wait for IOSF accesses to complete. Also
perform this wait before each access, as specified in the datasheet.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
x550em has two different bus speeds, 300 MHz and 400 MHz.
A bit in a fuse register tells which it is, with a 1 meaning
the bus is running at 300 MHz.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
In UniPHY we have 2 IOSF targets that are UniPHY related. We can
write to PHY and PCS. In earlier times I've been told that there
were 2 separate PCS targets for IOSF commands and that's why I
implemented it with 2 defines and adding hw->bus.lan_id, but lately
I confirmed with HW that FW takes care of which PCS "slice" we are
talking to and is directing writes to correct one, so KX4_PCS1
target is dead now and we cannot use it.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch powers down the x550em PHY on over-temp events. The
PHY firmware is supposed to do this autonomously but that isn't
implemented. The short-term stop-gap solution is for SW to power
down the PHY when it reports an overtemp event.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds identify SFP module support for x550em. x550em
support returns an error for SFP module types not supported by
x550em design.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch updates the x550em SFP link setup by adding
ixgbe_sfp_type_unknown and ixgbe_sfp_type_not_present case expression
to the ixgbe_setup_mac_link_sfp_x550em SFP type switch statement. This
handles the case when no module is present.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Fix the warning caused by an uninitialized variable which might have
been used.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Configure the CS4227 correctly for both 1G and 10G operation,
by moving the code to ixgbe_setup_mac_link_sfp_x550em(). It
needs to be in this function because we need both the module
type and the speed, and this is the only function in the init
flow that knows the speed. In contrast,
ixgbe_setup_sfp_modules_X550em() does not know the speed, so we
can't do anything useful here. This is a fundamental difference
from the 82599 flow.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
On systems that support LPLU in the firmware, the driver wouldn't be
aware of the LPLU speed change, and it wouldn't cache the new value when
the driver resumes. This patch emulates the same behavior by restoring
the previous autoneg settings to autoneg_advertised.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch updates x550em LPLU (Low Power Link Up) to use the
MAC ops setup_link function pointer.
This removes redundant code and provides iXFI and KR support
between internal and external PHY.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Because we acquire two semaphore bits before setting the SWFW_SYNC
register, we should release them in the reverse order that they
were acquired.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch skips the PCI transactions pending check in
ixgbe_disable_pcie_master. The PCI transactions pending bit sticks high
when there were pending transactions, we should wait and then continue
with our reset flow.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch fixes comment description for setting 2.5G and 5G speeds in
ixgbe_setup_phy_link_generic.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Adds define for the number of bits needed to shift the EEE_SU register
in order to get the value of TEEE_DLY.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This path changes ((P == 0) ? (<value for port 0>) : (<value for port 1>))
register definition into ((P) ? <value for port 1> : <value for port 0>)
style.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Update readme file to show the version of the base code.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch sets the setup_EEE function pointer to NULL for the
interfaces which do not support EEE (Energy Efficient Ethernet).
Currently only the KR backplane interface (0x15AB) supports EEE.
Setting this pointer to NULL prevents EEE registers from being
incorrectly modified and gives base drivers a flag to check for
EEE support.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds x550em PHY reset function ixgbe_reset_phy_t_X550em.
ixgbe_reset_phy_t_X550em calls the reset PHY generic, and then enables
the x550em PHY LASI(Link Alarm Status Interrupt) interrupts.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Set the lan_id before the first I2C access. The existing call was
clearly being done after a previous I2C access in the same function
and that can't be right, so call the set_lan_id method earlier. At
this point it probably doesn't matter for this QSFP function, but
it makes sense to do it consistently anyway.
On X550, be sure to set the lan_id before using it to configure the
mux control output, else the mux will not be controlled.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The introduction of ixgbe_get_bus_info_X550em failed to call the
set_lan_id method to set the func and lan_id and deal with port-
swapped configurations. Add the call to resolve the problem.
Fixes: 4cf0bb32a9 ("ixgbe/base: get X550 bus info")
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds ixgbe_check_link_t_X550em for checking x550em
PHY link. We check that both the MAC and external x550em PHY have link.
This is to avoid a false link up between the internal and external PHY
when the external PHY doesn't have link.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds x550em external PHY interrupt and forced 1G/10G
support. Support includes enabling and handling Link Status
Change and Thermal Sensor interrupt. ixgbe_handle_lasi has been added
to the API for handling the interrupts received from x550em PHY.
ixgbe_enable_lasi_ext_t_x550em and ixgbe_get_lasi_ext_t_x550em have been
added to X550em to enable mask and check interrupt flags for x550em PHY.
Forced 1G/10G link speed is handled via ixgbe_setup_mac_link_t_X550em.
ixgbe_setup_mac_link_t_X550em sets up the internal PHY and
external PHY link to either 10G or 1G based on the user selected auto
advertised link speed setting. Then sets up the external PHY auto
advertised link speed.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds x550em Auto neg Flow Control support to
ixgbe_device_supports_autoneg_fc and sets the x550em setup_fc function
pointer to ixgbe_setup_fc_generic. ixgbe_setup_fc_generic is used for
x550em because flow control is setup on the external PHY via MDIO, when
ixgbe_setup_fc_X550em sets up flow control on the internal PHY.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch cleans up the ixgbe_setup_internal_phy_ x550em() function as follows:
- Renames it to ixgbe_setup_internal_phy_t_x550em to clarify that it is
specific to copper
- Returns an error if called for non-copper devices
- Corrects the comments
- Removed the LASI(Link Alarm Status Interrupt) status register checks as
this was incorrect and never worked correctly anyway.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch changes the return value for ixgbe_setup_internal_phy_t_x550em
when link is down to IXGBE_SUCCESS.
The driver will call ixgbe_setup_internal_phy_t_x550em when a link status
change is reported. The links status change can occur on link up or link
down, and if the link status change is for link down then there is no iXFI
setup necessary and no error condition needs to be returned.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The following patch moves the handling of the I2C MUX (which is only
used for x550em SFP+ devices) out of the ixgbe_x540.c file and
into the ixgbe_x550.c file where it belongs.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The init flow is simplified. We no longer wait for the PHY FW init
complete bit to be set as this bit is only set once by the PHY at power
on and then cleared on the first read. So only the first instance of
running SW (or possibly MAC FW) needs to initialize the PHY.
The PHY initialization has been simplified and now only requires that
the PHY FW be "un-stalled". SW no longer needs to put the PHY in
low-power mode or enable the transceiver.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
For the KR backplane which is different from other backplane,
in that we can't use auto-negotiation to determine the
mode. Instead, use whatever the user configured.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds SW Low Power Link Up (LPLU) support for x550em PHY.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch adds SFP+ dual-speed support.
82599 fiber link code was moved from ixgbe_82599.c to ixgbe_commom.c
for use by X550em, and the API was updated to support the common code
usage. SFP MAC link code is added to x550em.
Signed-off-by: Changchun Ouyang <changchun.ouyang@intel.com>
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The FEC (Forward Error Correction) feature can improve BER (Bit Error Rate)
but uses more power to do so. It also cannot be used with
EEE (Energy Efficient Ethernet).
EEE is an important feature, and we have no known BER issues, so FEC
is not needed.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The I2C mux control relies on the SDP setting in the ESDP register
so it is necessary to restore the value after a MAC reset. So,
put the code in a function so it can be used in more than one place.
Fixes: d2e72774e5 ("ixgbe/base: support X550")
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
On some hardware platforms, the CS4227 does not initialize properly.
Detect those cases and reset it appropriately.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
The driver now needs to issue a firmware command to inform the
firmware that a driver is coming up. This prevents the possibility
of the firmware and the driver configuring the PHY at the same
time. Upon completion of the command, the firmware will no longer
be configuring the PHY.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
A retry count of 10 is likely to run into problems on X550 devices
that have to detect and reset unresponsive CS4227 devices. So,
reduce the I2C retry count to 3 for X550 and above. This should
avoid any possible regressions in existing devices.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Most I2C accesses take and release semaphores for each access. It's
also necessary to perform multiple I2C operations under the same
holding of the semaphore, so provide unlocked I2C methods for that
purpose.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
All bits in FDIRTCPM and FDIRUDPM are set to 1 when
ixgbe_fdir_set_input_mask_82599 is called. Not settings these bits will cause
TCP and UDP packets to be filtered out when NVGRE or VXLAN mode is enabled.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This patch moves the check of the return value from
ixgbe_start_hw_generic after the function is called.
Previously we had the code to disable relaxed ordering in
between, which seems a bit out of place.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Remove the redundant "from".
There's a typo in the code comment for FC end
of Frame Exception (FCEOFe/IPE), so fixed the typo.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
move ixgbe PMD to drivers/net directory.
As part of the move, we rename the ixgbe directory, containing the
ixgbe "base driver" code, from "ixgbe" to "base".
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
