If firmware supports hot reset, extend ETHTOOL_RESET to support
hot reset driver which does not require a driver reload after
ETHTOOL_RESET. The driver will go through the same coordinated
reset sequence as a firmware initiated fatal/non-fatal reset.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the larger HWRM_COREDUMP_TIMEOUT value for coredump related
data response from the firmware. These commands take longer than
normal commands.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When hardware reports RX buffer errors, the latest 57500 chips do not
require reset. The packet is discarded by the hardware and the
ring will continue to operate.
Also, add an rx_buf_errors counter for this type of error. It can help
the user to identify if the aggregation ring is too small.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Driver supports 2 types of core dumps.
1. Live dump - Firmware dump when system is up and running.
2. Crash dump - Dump which is collected during firmware crash
that can be retrieved after recovery.
Crash dump is currently supported only on specific 58800 chips
which can be retrieved using OP-TEE API only, as firmware cannot
access this region directly.
User needs to set the dump flag using following command before
initiating the dump collection:
$ ethtool -W|--set-dump eth0 N
Where N is "0" for live dump and "1" for crash dump
Command to collect the dump after setting the flag:
$ ethtool -w eth0 data Filename
v3: Modify set_dump to support even when CONFIG_TEE_BNXT_FW=n.
Also change log message to netdev_info().
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Sheetal Tigadoli <sheetal.tigadoli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Firmware coredump messages take much longer than standard messages,
so increase the timeout accordingly.
Fixes: 6c5657d085 ("bnxt_en: Add support for ethtool get dump.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In preparation for the new firmware reset feature, some of the logic
in bnxt_init_one() and related functions will be called again after
firmware has reset. Reset some of the flags and capabilities so that
everything that can change can be re-initialized. Refactor some
functions to probe firmware versions and capabilities. Check some
buffers before allocating as they may have been allocated previously.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The main firmware messaging function returns the firmware defined error
code and many callers have to convert to standard error code for proper
propagation to userspace. Convert bnxt_hwrm_do_send_msg() to return
standard error code so we can do away with all the special error code
handling by the many callers.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The same message is printed 3 times in the code, so use a common function
to do that.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If FW returns FRAG_ERR in response error code, driver is resending the
command only when HWRM command returns success. Fix the code to resend
NVM_INSTALL_UPDATE command with DEFRAG install flags, if FW returns
FRAG_ERR in its response error code.
Fixes: cb4d1d6261 ("bnxt_en: Retry failed NVM_INSTALL_UPDATE with defragmentation flag enabled.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Support the new expanded TPA v2 counters on 57500 B0 chips for
ethtool -S.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code assumes that the per ring statistics counters are
fixed. In newer chips that support a newer version of TPA, the
TPA counters are also changed. Refactor the code by defining these
counter names in arrays so that it is easy to add a new array for
a new set of counters supported by the newer chips.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Among the changes are new CoS discard counters and new ctx_hw_stats_ext
struct for the latest 5750X B0 chips.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
__bnxt_xmit_xdp() is used by XDP_TX and ethtool loopback packet transmit.
Refactor it so that it can be re-used by the XDP_REDIRECT logic.
Restructure the TX interrupt handler logic to cleanly separate XDP_TX
logic in preparation for XDP_REDIRECT.
Acked-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Renaming bnxt_xmit_xdp to __bnxt_xmit_xdp to get ready for XDP_REDIRECT
support and reduce confusion/namespace collision.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After ethtool loopback packet tests, we re-open the nic for the next
IRQ test. If the open fails, we must not proceed with the IRQ test
or we will crash with NULL pointer dereference. Fix it by checking
the bnxt_open_nic() return code before proceeding.
Reported-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Fixes: 67fea463fd ("bnxt_en: Add interrupt test to ethtool -t selftest.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When making configuration changes, the driver calls bnxt_close_nic()
and then bnxt_open_nic() for the changes to take effect. A parameter
irq_re_init is passed to the call sequence to indicate if IRQ
should be re-initialized. This irq_re_init parameter needs to
be included in the bnxt_reserve_rings() call. bnxt_reserve_rings()
can only call pci_disable_msix() if the irq_re_init parameter is
true, otherwise it may hit BUG() because some IRQs may not have been
freed yet.
Fixes: 41e8d79837 ("bnxt_en: Modify the ring reservation functions for 57500 series chips.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
HWRM_VER_GET firmware command returns package name that is running
actively on the adapter. Use this version instead of parsing from
the package log in NVRAM.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gather periodic PCIe statistics for ethtool -S.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
PTP API updates for 57500 chips, new RX port stats counters and other
miscellaneous updates.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.
Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code has 2 problems. It assumes that the RX ring for
the loopback packet is combined with the TX ring. This is not
true if the ethtool channels are set to non-combined mode. The
second problem is that it won't work on 57500 chips without
adjusting the logic to get the proper completion ring (cpr) pointer.
Fix both issues by locating the proper cpr pointer through the RX
ring.
Fixes: e44758b78a ("bnxt_en: Use bnxt_cp_ring_info struct pointer as parameter for RX path.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With autoneg enabled, PHY loopback test fails. To disable autoneg,
driver needs to send a valid forced speed to FW. FW is not sending
async event for invalid speeds. To fix this, query forced speeds
and send the correct speed when disabling autoneg mode.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Port statistics which include RDMA counters are useful even when the
netdevice is down. Do not free the port statistics DMA buffers
when the netdevice is down. This is keep the snapshot of the port
statistics and counters will just continue counting when the
netdevice goes back up.
Split the bnxt_free_stats() function into 2 functions. The port
statistics buffers will only be freed when the netdevice is
removed.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently firmware specific errors are returned directly in flash_device
and reset ethtool hooks. Modify it to return linux standard errors
to userspace when flashing operations fail.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Display the CoS counters as additional priority counters by looking up
the priority to CoS queue mapping. If the TX extended port statistics
block size returned by firmware is big enough to cover the CoS counters,
then we will display the new priority counters. We call firmware to get
the up-to-date pri2cos mapping to convert the CoS counters to
priority counters.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For bnxt_en driver, stat_ctxs created will always be same as
cp_nr_rings. Remove extra variable that duplicates the value.
Also introduce bnxt_get_avail_stat_ctxs_for_en() helper to get
available stat_ctxs and bnxt_get_ulp_stat_ctxs() helper to return
number of stat_ctxs used by RDMA.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the year and month offset while storing it in
bnxt_fill_coredump_record().
Fixes: 6c5657d085 ("bnxt_en: Add support for ethtool get dump.")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To keep track of the number of times the workaround code for 57500 A0
has been triggered. This is a per NQ counter.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the RX code path, we current use the bnxt_napi struct pointer to
identify the associated RX/CP rings. Change it to use the struct
bnxt_cp_ring_info pointer instead since there are now up to 2
CP rings per MSIX.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The 57500 series chips have a new 64-bit doorbell format. Use a new
bnxt_db_info structure to unify the new and the old 32-bit doorbells.
Add a new bnxt_set_db() function to set up the doorbell addreses and
doorbell keys ahead of time. Modify and introduce new doorbell
helpers to help abstract and unify the old and new doorbells.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Latest firmware spec. has some additional rx extended port stats and new
tx extended port stats added. We now need to check the size of the
returned rx and tx extended stats and determine how many counters are
valid. New counters added include CoS byte and packet counts for rx
and tx.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bnxt_coredump_record structure is very long, causing a warning
about possible stack overflow on 32-bit architectures:
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c: In function 'bnxt_get_coredump':
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:2989:1: error: the frame size of 1188 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
I could not see any reason to operate on an on-stack copy of the
structure before copying it back into the caller-provided buffer, which
also simplifies the code here.
Fixes: 6c5657d085 ("bnxt_en: Add support for ethtool get dump.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The utsname()->nodename string may be 64 bytes long, and it gets
copied without the trailing nul byte into the shorter record->system_name,
as gcc now warns:
In file included from include/linux/bitmap.h:9,
from include/linux/ethtool.h:16,
from drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:13:
In function 'strncpy',
inlined from 'bnxt_fill_coredump_record' at drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:2863:2:
include/linux/string.h:254:9: error: '__builtin_strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Werror=stringop-truncation]
Using strlcpy() at least avoids overflowing the destination buffer
and adds proper nul-termination. It may still truncate long names
though, which probably can't be solved here.
Fixes: 6c5657d085 ("bnxt_en: Add support for ethtool get dump.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes following smatch warnings:
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:2826 bnxt_fill_coredump_seg_hdr() error: strcpy() '"sEgM"' too large for 'seg_hdr->signature' (5 vs 4)
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:2858 bnxt_fill_coredump_record() error: strcpy() '"cOrE"' too large for 'record->signature' (5 vs 4)
drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c:2879 bnxt_fill_coredump_record() error: strcpy() 'utsname()->sysname' too large for 'record->os_name' (65 vs 32)
Fixes: 6c5657d085 ("bnxt_en: Add support for ethtool get dump.")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The BNXT_FLAG_NEW_RM flag is checked a lot in the code to determine if
the new resource manager is in effect. Define a macro to perform
this check.
Signed-off-by: Michael Chan <michael.chan@broadocm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support to collect live firmware coredump via ethtool.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add code to detect firmware support for external loopback and the extra
test entry for external loopback.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver gathers statistics using 2 mechanisms. Some stats are DMA'ed
directly from hardware and others are polled from the driver's timer.
Currently, we only adjust the DMA frequency based on the ethtool
stats-block-usecs setting. This patch adjusts the driver's timer
frequency as well to make everything consistent.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
New interface has firmware core dump support, new extended port
statistics, and IF state change notifications to the firmware.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For SFP+ modules, 0xA2 page is available only when Diagnostic Monitoring
Type [Address A0h, Byte 92] is implemented. Extend bnxt_get_module_info(),
to read optical diagnostics support at offset 92(0x5c) and set eeprom_len
length to ETH_MODULE_SFF_8436_LEN (to exclude A2 page), if dianostics is
not supported.
Also in bnxt_get_module_info(), module id is read from offset 0x5e which
is not correct. It was working by accident, as offset was not effective
without setting enables flag in the firmware request. SFP module id is
present at location 0. Fix this by removing the offset and read it
from location 0.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code does not reserve rings during ethtool -L when the device
is down. The rings will be reserved when the device is later opened.
Change it to reserve rings during ethtool -L when the device is down.
This provides a better guarantee that the device open will be successful
when the rings are reserved ahead of time.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Firmware does not allow the operation and would return failure, causing
a warning in dmesg. So check for VF and disallow it in the driver.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add counters to display sum of rx/tx_discard_pkts of all rings as
function level statistics via ethtool.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In some firmware images, the length of BNX_DIR_TYPE_PKG_LOG nvram type
could be greater than the fixed buffer length of 4096 bytes allocated by
the driver. This was causing HWRM_NVM_READ to copy more data to the buffer
than the allocated size, causing general protection fault.
Fix the issue by allocating the exact buffer length returned by
HWRM_NVM_FIND_DIR_ENTRY, instead of 4096. Move the kzalloc() call
into the bnxt_get_pkgver() function.
Fixes: 3ebf6f0a09 ("bnxt_en: Add installed-package firmware version reporting via Ethtool GDRVINFO")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix ethtool .get_rxfh() crash by checking for valid indirection table
address before copying the data.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When checking for the maximum pre-set TX channels for ethtool -l, we
need to check the current max_tx_scheduler_inputs parameter from firmware.
This parameter specifies the max input for the internal QoS nodes currently
available to this function. The function's TX rings will be capped by this
parameter. By adding this logic, we provide a more accurate pre-set max
TX channels to the user.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Gather periodic extended port statistics, if the device is PF and
link is up.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Include additional hardware port statistics in ethtool -S, which
are useful for debugging.
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
