Knowing that:
  #define TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN        (0x1UL << 0)
  #define TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE       (0x5UL << 0)
and that 'bnxt_hwrm_tunnel_dst_port_alloc()' is only called with one of
these 2 constants, the TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE can not
trigger.

Replace the bit test that overlap by an equality test, just as in
'bnxt_hwrm_tunnel_dst_port_free()' above.
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add a missing synchronize_net() call to avoid potential use after free,
since we explicitly call napi_hash_del() to factorize the RCU grace
period.

Fixes: c0c050c5 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Acked-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the physical link is down and the VF virtual link is set to "enable",
the current code does not always work.  If the link is down but the
cable is attached, the firmware returns LINK_SIGNAL instead of
NO_LINK.  The current code is treating LINK_SIGNAL as link up.
The fix is to treat link as down when the link_status != LINK.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The logic is missing the check on whether the tx and rx rings are sharing
completion rings or not.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Introduce new rtnl UAPI that exposes a list of vlans per VF, giving
the ability for user-space application to specify it for the VF, as an
option to support 802.1ad.
We adjusted IP Link tool to support this option.

For future use cases, the new UAPI supports multiple vlans. For now we
limit the list size to a single vlan in kernel.
Add IFLA_VF_VLAN_LIST in addition to IFLA_VF_VLAN to keep backward
compatibility with older versions of IP Link tool.

Add a vlan protocol parameter to the ndo_set_vf_vlan callback.
We kept 802.1Q as the drivers' default vlan protocol.
Suitable ip link tool command examples:
  Set vf vlan protocol 802.1ad:
    ip link set eth0 vf 1 vlan 100 proto 802.1ad
  Set vf to VST (802.1Q) mode:
    ip link set eth0 vf 1 vlan 100 proto 802.1Q
  Or by omitting the new parameter
    ip link set eth0 vf 1 vlan 100
Signed-off-by: NMoshe Shemesh <moshe@mellanox.com>
Signed-off-by: NTariq Toukan <tariqt@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

bnxt_hwrm_fw_set_time() now returns -EOPNOTSUPP when built for kernel
without RTC_LIB.  Setting the firmware time is not critical to the
successful completion of the firmware update process.
Signed-off-by: NRob Swindell <Rob.Swindell@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The VF link state can be changed via the 'ip link set' cmd.
Currently, the new link state does not take effect immediately.

The fix is for the PF to send a link change async event to the
designated VF after a VF link state change.  This async event will
trigger the VF to update the link status.
Signed-off-by: NEddie Wai <eddie.wai@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Restart autoneg if autoneg is enabled.
Signed-off-by: NDeepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The hardware has a limitation that it won't pass host to BMC loopback
packets below 52-bytes.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

After generating the random MAC address for VF, call the firmware to
approve it.  This step serves 2 purposes.  Some hypervisor (e.g. ESX)
wants to approve the MAC address.  2nd, the call will setup the
proper forwarding database in the internal switch.

We need to unlock the hwrm_cmd_lock mutex before calling bnxt_approve_mac().
We can do that because we are at the end of the function and all the
previous firmware response data has been copied.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Re-arrange the code so that the generation of the random MAC address for
the VF is at the end of the function.  The next patch will add one more step
to call bnxt_approve_mac() to get the firmware to approve the random MAC
address.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The existing code is inconsistent in reporting and accepting the combined
channel count.  bnxt_get_channels() reports maximum combined as the
maximum rx count.  bnxt_set_channels() accepts combined count that
cannot be bigger than max rx or max tx.

For example, if max rx = 2 and max tx = 1, we report max supported
combined to be 2.  But if the user tries to set combined to 2, it will
fail because 2 is bigger than max tx which is 1.

Fix the code to be consistent.  Max allowed combined = max(max_rx, max_tx).
We will accept a combined channel count <= max(max_rx, max_tx).
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Using Ethtool flashdev command, entire NVM package (*.pkg) files
may now be staged into the "update" area of the NVM and subsequently
verified and installed by the firmware using the newly introduced
command: NVM_INSTALL_UPDATE.

We also introduce use of the new firmware command FW_SET_TIME so that the
NVM-resident package installation log contains valid time-stamps.
Signed-off-by: NRob Swindell <Rob.Swindell@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove "Single-port/Dual-port" from the device names.  Dual-port devices
will appear as 2 separate devices, so no need to call each a dual-port
device.  Use a more generic name for VF devices belonging to the same
chip fanmily.  Add some remaining NPAR device IDs.
Signed-off-by: NDavid Christensen <david.christensen@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

And remove redundant definitions of the same flags.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is a code path where we are calling __iowrite64_copy() on
an address that is not 64-bit aligned.  This causes an exception on
some architectures such as arm64.  Fix that code path by using
__iowrite32_copy().
Reported-by: NJD Zheng <jiandong.zheng@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add 5741X/5731X NPAR device IDs and dual media SFP/10GBase-T device IDs.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If there are not enough resources to enable ntuple filtering,
log a warning message.

v2: Use single message and add missing newline.
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Include the destination MAC address in the ntuple filter structure.  The
current code assumes that the destination MAC address is always the MAC
address of the NIC.  This may not be true if there are macvlans, for
example.  Add destination MAC address checking and configure the filter
correctly using the correct index for the destination MAC address.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

txr->dev_state was not consistently manipulated with the acquisition of
the per-queue lock, after further inspection the lock does not seem
necessary, either the value is read as BNXT_DEV_STATE_CLOSING or 0.

Reported-by: coverity (CID 1339583)
Fixes: c0c050c5 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Acked-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

A bridge device in NS2 has the same device ID as the ethernet controller.
Add check to avoid probing the bridge device.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allocate special vnic for dropping packets not matching the RX filters.
First vnic is for normal RX packets and the driver will drop all
packets on the 2nd vnic.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Allocate napi for special vnic, packets arriving on this
napi will simply be dropped and the buffers will be replenished back
to the HW.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The hardware is unable to drop rx packets not matching the RX filters.  To
workaround it, we create a special VNIC and configure the hardware to
direct all packets not matching the filters to it.  We then setup the
driver to drop packets received on this VNIC.

This patch creates the infrastructure for this VNIC, reserves a
completion ring, and rx rings.  Only shared completion ring mode is
supported.  The next 2 patches add a NAPI to handle packets from this
VNIC and the setup of the VNIC.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Nitro A0 has a hardware bug in the rx path.  The workaround is to create
a special COS context as a path for non-RSS (non-IP) packets.  Without this
workaround, the chip may stall when receiving RSS and non-RSS packets.

Add infrastructure to allow 2 contexts (RSS and CoS) per VNIC.  Allocate
and configure the CoS context for Nitro A0.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Nitro is the embedded version of the ethernet controller in the North
Star 2 SoC.  Add basic code to recognize the chip ID and disable
the features (ntuple, TPA, ring and port statistics) not supported on
Nitro A0.
Signed-off-by: NPrashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

rc is not initialized so it can contain garbage if it is not
set by the call to bnxt_read_sfp_module_eeprom_info. Ensure
garbage is not returned by initializing rc to 0.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Acked-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This code generates as static checker warning because htons(ETH_P_IPV6)
is always true.  From the context it looks like the && was intended to
be !=.

Fixes: 94758f8d ('bnxt_en: Add GRO logic for BCM5731X chips.')
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The allowable range is 0.25 seconds to 1 second interval.  Default is
1 second.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is useful for multi-function devices.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

With a default VLAN, the VF has its own VLAN domain and it can receive
all traffic within that domain.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NVasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

For correctness, the MRU enables bit must be set when passing the
MRU to firmware during vnic configuration.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support to the Ethtool FLASHDEV command handler for additional
firmware types to cover all the on-chip processors.
Signed-off-by: NRob Swindell <rob.swindell@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Upon successful mgmt processor firmware update, request a self
reset upon next PCIe reset (e.g. system reboot).
Signed-off-by: NRob Swindell <rob.swindell@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To support Secure Firmware Update, we must be able to allocate
a staging area in the Flash.  This patch adds support for the
"update" type to tell firmware to do that.
Signed-off-by: NRob Swindell <rob.swindell@broadcom.com>
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Calling the firmware to do function reset on the PF will kill all the VFs.
To prevent that, we call function reset on the 1st PF open before any VF
can be activated.  On subsequent PF opens (with possibly some active VFs),
a bit has been set and we'll skip the function reset.  VF driver will
always do function reset on every open.  If there is an AER event, we will
always do function reset.
Signed-off-by: NMichael Chan <michael.chan@broadocm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

And update driver version to 1.3.0.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Returning 0 for doing nothing is confusing to the user.
Signed-off-by: NMichael Chan <michael.chan@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>