* Adding platform support for Juniper QFX5210
This switch has 64 QSFP28 (40G/100G) ports, 2 SFP+ (1G/10G) ports
on Broadcom Tomahawk II chipset. CPU used in QFX5210-64C-S is
Intel Broadwell-DE. The machine has Redundant and hot-swappable
Power Supply (1+1) and also has Redundant and hot swappable fans (3+1).
Signed-off-by: Ciju Rajan K <crajank@juniper.net>
* [Juniper][QFX5210] Optoe driver for SFP management
This commit implements the following changes
- Moving to optoe driver for sfp management
- Removing the old sfp driver
- Updating the port-config.ini to add the index field
- Correction in sfputil.py to incorporate optoe driver
- Platform support for 'poweroff' command
Signed-off-by: Ciju Rajan K <crajank@juniper.net>
Implemented remaining APIs in s6100,z9100,s6000
Removed soft link in s6100,s6000,z9100 and implemented seperately
Implemented get_transceiver_change_event in S6000
This switch has 64 QSFP28 (40G/100G) ports, 2 SFP+ (1G/10G) ports
on Broadcom Tomahawk II chipset. CPU used in QFX5210-64C-S is
Intel Broadwell-DE. The machine has Redundant and hot-swappable
Power Supply (1+1) and also has Redundant and hot swappable fans (3+1).
Signed-off-by: Ciju Rajan K <crajank@juniper.net>
- Improve smbus reliability for all platforms
- Delay processing of the reboot cause to reduce critical path
- Add support of get_change_event for PSUs
* Change psu driver to comfort to lm-sensors.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Duplicate fan attributes with naming conforming to lm-sensors.
Replace psu drivers.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Revise cpr_4011_4mxx.c to support lm-sensors.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [DELL][Z9100,S6100,S6000] Platform 2.0 SFP Changes
Added support in sfp.py file which will be generic. Send the eeprom path and sfp_control path from chassis.py
This switch has 27 fiber ports, 4x25G, 20x10G , and 3x100G ports ports.
CPU: Intel ® Atom™ Processor C3508,1.6GHz
BMC: None
MAC: Broadcom BCM88470 (Qumran AX).
MISC: Support IEEE1588v2, hot-swappable PSU, hot-swappable fan tray.
But notice here, BCM88470 is not supported for SAI now.
So the syncd container is not running so far.
Signed-off-by: roy_lee <roy_lee@accton.com>
Add platform support for delta ag9032v2a
CPU: Broadwell-DE
ASIC: BMC56870 with <100Gx32 + 10Gx1>
BMC: AST2520:
- What I did
add the new platform of delta ag9032v2a
- How I did it
1.provide the QSFP and SWPLD attributes and create the virtual buses of I2C
2. provide the port configuration
- How to verify it
1. psuutil.py
2. sfputil.py
3. bcmcd
- Known issue
The port LED is not ready. We noticed that BCM chip had the M0 FW initialization issue while bringing up SDK with "BRCM SAI ver: [3.5.2.3], OCP SAI ver: [1.4], SDK ver: [6.5.14]" and here is the information :
root@sonic:/home/admin# bcmcmd "M0 status"
M0 status
0:soc_iproc_data_send_wait: No response for msg 2
M0 FW is NOT Running
M0 FW Version is 0.0
Host FW Version is 1.0
Host and M0 FW Versions do not match!!!
Signed-off-by: hans-tseng <hans.tseng@deltaww.com>
I2c burst read may failed due to misoperation of ir3570a(A DC-to-DC converter IC).
As #2966, there are 3 more models have this symptom, as7326-56x, as7726-32x, and as9716-32d.
Also correct typo of naming on as7816-64x and as7716-32x.
Signed-off-by: roy_lee roy_lee@accton.com
What I did
Disabling i2c function of ir3570a which may failed i2c tranfer to others.
Close channel of mux after data transfered.
How I did it
Identify version of ir3570, if it's ir3570a, disable its alias i2c address.
Enable parameter of driver i2c_mux_pca954x to close channel on after every access.
How to verify it
Write 08 to offset 0xcf of systom eeprom and execute i2c block read.
It will return error.
plug-in several transceivers and run "show interfaces transceiver presence" and "sfputil show presence". You may see the different result. (But doing this requires updated xcvrd).
Signed-off-by: roy_lee <roy_lee@accton.com>
- What I did
Move the enabling of Systemd services from sonic_debian_extension to a new systemd generator
- How I did it
Create a new systemd generator to manually create symlinks to enable systemd services
Add rules/Makefile to build generator
Add services to be enabled to /etc/sonic/generated_services.conf to be read by the generator at boot time
Signed-off-by: Lawrence Lee <t-lale@microsoft.com>
Added Reboot Reason for S6000 in platform 2.0
Fixed issue in process-reboot-cause
Added package uninstall code in platform de-init code for z9100, s6100
- How I did it
-> Added support for S6000 Reboot Reason
-> Added platform.py for all platforms
-> Verified show reboot-cause command with the code changes. Added UT logs with show reboot-cause
-> Modified process-reboot-cause service to start after pmon.service. In S6000, we have to wait for nvram to be loaded.
-> If reboot-cause service starts before pmon.service, show reboot-cause is showing incorrect reason.
-> Bug fix in process-reboot-cause file
- import sonic_platform
+ import sonic_platform.platform
* [as5712-54x]
Verified with index from 1.
Add qsfp_event() for command "show interaface trancerver".
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as6712-32x]
Add default port speed.
Verified with index from 1.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7726-32x]
Add default port speed.
Verified with index from 1.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7712-32x]
Add default port speed.
Verified with index from 1.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as5812-54x]
Add default port speed.
Verified with index from 1.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as5712-54x]
Update port-config with 1-based index.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as5812-54x]
Somehow the service may block, use type=simple to work-around.
Add syslog function for monitor.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7716-32x]
Update port-config with 1-based index.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7816-64x]
Update port-config with 1-based index.
Implement sfputil change_event.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7326-56x]
Update port-config with 1-based index.
Implement sfputil change_event.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Remove debug code.
Signed-off-by: roy_lee <roy_lee@accton.com>
* [as7312-54x]
Update port-config with 1-based index and default port speed.
Signed-off-by: roy_lee <roy_lee@accton.com>
The following commit addresses the graceful unmounting of file
system and graceful shutdown of dockers before calling a
cold reboot which will cause a power cycle of SSD. This ensures
orderly shutdown and no corruption of files systems because
of the power cycle to SSD.
This commit will use the existing systemd-reboot service scripts
and override the configuration to do cold reboot for S6100 and
Z9100.
Unit tested the fix and graceful shutdown of file system and
dockers are done with cold reboot.
Signed-off-by: Harish Venkatraman <harish_venkatraman@dell.com>
* [devices]: Add a new supported device DellEMC s5232f
* Switch Vendor: DellEMC
* Switch SKU: s5232F
* ASIC Vendor: Broadcom
* Swich ASIC: Trident3
* Port Configuration: 32x100G
* SONiC Image: sonic-broadcom.bin
* LED support for s5232f
* Changes Include ipmitool implementation for platform_sensors script is inclued in pmon startup
* Added 100G,25G,10G configruation ( 100G is default).
* s5232[device] PSU detecttion and default led state support
* Add driver and util for peripherals of as7312-54xs, most are copied from as7312-54s.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Add default port speed and index from 1.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Update i2c addr of psus.
Add system logging for monitor.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Correct syntax of module_dirs.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Validate sfputil after tested.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Correct the index of eeprom mapping.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Switch Vendor: DellEMC
* Switch SKU: s5232F
* ASIC Vendor: Broadcom
* Swich ASIC: Trident3
* Port Configuration: 32x100G
* SONiC Image: sonic-broadcom.bin
* LED support for s5232f
* Changes Include ipmitool implementation for platform_sensors script is inclued in pmon startup
* Added 100G,25G,10G configruation ( 100G is default).
- What I did
Added Daemon to Log LPC bus degradation in Intel C2000 processor. Intel Rangeley C2000 processors with revision less than or equal to 2 have issue where LPC bus degrades over time in some processors. To identify the problem and to notify the issue, a daemon has been added which will log on encountering the issue.
- How I did it
Added a daemon which validates the CPLD scratch(0x102) and SMF scratch(0x202) registers by writing and reading values on regular polling intervals (300 seconds). If there is a discrepancy between read and write, a critical log will be thrown.
- How to verify it
The infra is verify by simulating the issue where between write and read, the value in register is modified and the log appearance is checked.
- Description for the changelog
Added Daemon to identify LPC bus degradation issue and notify using syslog in Dell S6100 and Z9100 platforms. This daemon will only run on processors with revision less than or equal to 2.
- What I did
During boot/reload time, wait in a loop to check for bcm initialization.
Break the loop, once sdk is ready to process the 'bcmcmd' request (or) loop count reached the maximum value.
- How I did it
In the existing implementation during syncd start process will sleep for a fixed time (3 secs)
for sdk initialization to happen. But the time taken for sdk initialization is varying for different platforms.
To fix this issue, the syncd start process wait in a loop and check whether sdk is ready to process 'bcmcmd' command.
- How to verify it
Check for syncd process status and interface status.
Check for syslogs and no failures related to syncd should be present.
* [submodule] update sonic-linux-kernel
* update linux kernel version
* Fix many version strings
* update mellanox components (built with new kernel)
* [mlnx] add make files for SDK WJH libs
* Update arista driver submodule (#8)
Make the debian packaging point to a newer kernel version.
* Updated Makefile infrastructure to build debug images.
As a sample, platform/broadcom/docker-orchagent-brcm.mk is updated to add a docker-orchagent-brcm-dbg.gz target.
Now "BLDENV=stretch make target/docker-orchagent-brcm-dbg.gz" will build the debug image.
NOTE: If you don't specify NOSTRETcH=1, it implicitly calls "make stretch", which builds all stretch targets and that would include debug dockers too.
This debug image can be used in any linux box to inspect core file. If your module's external dependency can be suitably mocked, you my even manually run it inside.
"docker run -it --entrypoint=/bin/bash e47a8fb8ed38"
You may map the core file path to this docker run.
* Dropped the regular binary using DBG_PACKAGES and a small name change to help readability.
* Tweaked the changes to retain the existing behavior w.r.t INSTALL_DEBUG_TOOLS=y.
When this change ('building debug docker image transparently') is extended to all dockers, this flag would become redundant. Yet, there can be some test based use cases that rely on this flag.
Until after all the dockers gets their debug images by default and we switch all use cases of this flag to use the newly built debug images, we need to maintain the existing behavior.
* 1) slave.mk - Dropped unused Docker build args
2) Debug template builder: renamed build_dbg_j2.sh to build_debug_docker_j2.sh
3) Dropped insignifcant statement CMD from debug Docker file, as base docker has Entrypoint.
* Reverted some changes, per review comments.
"User, uid, guid, frr-uid & frr-guid" are required for all docker images, with exception of debug images.
* Get in sync with the new update that filters out dockers to be built (SONIC_STRETCH_DOCKERS_FOR_INSTALLERS) and build debug-dockers only for those to be built and debug target is available.
* Mkae a template for each target that can be shared by all platforms.
Where needed a platform entry can override the template.
This avoids duplication, hence easier to maintain.
* A small change, that can fit better with other targets too.
Just take the platform code and do the rest in template.
* Extended debug to all stretch based docker images
* 1) Combined all orchagent makefiles into one platform independent make under rules/docker-orchagent.mk
2) Extened debug image to all stretch dockers
* Changes per review comments:
1) Dropped LIBSAIREDIS_DBG from database, teamd, router-advertiser, telemetry, and platform-monitor docker*.mk files from _DBG_DEPENDS list
2) W.r.t docker make for syncd, moved DEPENDS from template to specific makefile and let the template has stuff that is applicable to all.
* 1) Corrected a copy/paste mistake
* Fixed a copy/paste bug
* The base syncd dockers follow a template, which defines the base docker as DOCKER_SYNCD_BASE instead of DOCKER_SYNCD_<platform code>. Fix the docker-syncd-<mlnx, bfn>.mk to use the new one.
[Yet to be tested locally]
* Fixed spelling mistake
* Enable build of dbg-sonic-broadcom.bin, which uses dbg-dockers in place of regular dockers, for dockers that build debug version. For dockers that do not build debug version, it uses the regular docker.
This debug bin is installable and usable in a DUT, just like a regular bin.
* Per review comments:
1) Share a single rule for final image for normal & debug flavors (e.g. sonic-broadcom.bin & sonic-broadcom-dbg.bin)
2) Put dbg as suffix in final image name.
3) Compared target/sonic-broadcom.bin.logs with & w/o fix to verify integrity of sonic-broadcom.bin
4) Compared target/sonic-broadcom.bin.logs with sonic-broadcom-dbg.bin.log for verification
This fix takes care of ONIE image only. The next PR will cover the rest.
The next PR, will also make debug image conditional with flag.
* Updated per comments.
Now that debug dockers are available, do not need a way to install debug symbols in regular dockers.
With this commit, when INSTALL_DEBUG_TOOLS=y is set, it builds debug dockers (for dockers that enable debug build) and the final image uses debug dockers. For dockers that do not enable debug build, regular dockers get used in the final image.
Note:
The debug dockers are explicitly named as <docker name>-dbg.gz. But there is no "-dbg" suffix for image.
Hence if you make two runs with and w/o INSTALL_DEBUG_TOOLS=y, you have complete set of regular dockers + debug dockers. But the image gets overwritten.
Hence if both regular & debug images are needed, make two runs, as one with INSTALL_DEBUG_TOOLS=y and one w/o. Make sure to copy/rename the final image, before making the second run.
These patches add support for the Broadcom XMC card (XLR/GTS). At this moment
only Tomahawk switch (BCM956960K) is supported. Add
device/broadcom/x86_64-bcm_xlr-r0 and
platform/broadcom/sonic-platform-modules-brcm-xlr-gts files
* Add new device accton_as5812_54x.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Rename 5812's config.bcm.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Change fan module to support lm-sensors.
Validate for thermal policy.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Add bask reset and lpmode control of 6 QSFP ports.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Get currect duty of fan for comparing. Instead of by stored duty from previous iteration.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Roll back the mistakes to update mellanox submodules.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Rollback for misoperation on submodule platform/p4/SAI-P4-BM.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Change indexes of ports to start from 1, as them on the front panel.
Add low-power mode control of the transciever's eeprom, follows SFF-8436.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Add boot0 support for the 7280CR3
* Add platform and plugins for 7280CR3
* Add port config for 7280CR3
* Add platform_reboot for 7280CR3
* Add support for 7280CR3-32D4 based on the 7280CR3-32P4
* Update arista driver submodules
- Introduce new 7280CR3-32P4
- Improve to the led plugin for OSFP
- Update README.md
- Improve reboot cause reporting on all platform
- Refactor parts of the library toward sonic_platform API support
- Add abstraction for fans
- Export consistent sysfs entries for fan airflow direction
- Bootstrap python testing of the driver library.
- Fix miscellaneous bugs
* [platform/cel] Implement FAN APIs based on the new platform API
* [platform/cel] Move platform api to under device platform
* [platform/cel] Remove rule to build platform api python wheel
* catch signal SIGINT and SIGTERM to set all fans full-speed before end fan monitor.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Add fan_control monitor for as7816-64x.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Fix typo.
Signed-off-by: roy_lee <roy_lee@accton.com>
* Correct typo and duty setting after verified.
Signed-off-by: roy_lee <roy_lee@accton.com>
This service (weekly) will let SSD firmware to do the garbage collection
after file-system deleted files. It could avoid slowness or
even READ-ONLY error due to SSD not being able to free the pages
even though the file system thinks there was a lot of space left.
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
Overall goal: Build debug images for every stretch docker.
An earlier PR (#2789) made the first cut, by transforming broadcom/orchagent to build target/docker-orhagent-dbg.gz.
Changes in this PR:
Made docker-orchagent build to be platform independent.
1.1) Created rules/docker_orchagent.mk
1.2) Removed platform//docker-orchagent-*.mk
1.3) Removed the corresponding entry from platform//rules.mk
Extended the debug docker image build to stretch based syncd dockers.
2.1) For now, only mellanox & barefoot are stretch based.
2.2) All the common variable definitions are put in one place platform/template/docker-syncd-base.mk
2.3) platform/[mellanox, bfn]/docker-syncd-[mlnx, bfn].mk are updated as detailed below.
2.3.1) Set platform code and include template base file
2.3.2) Add the dependencies & debug dependencies and any update over what base template offers.
Extended all stretch based non-platform dockers to build debug dockers too.
3.1) Affected are:
docker-database.mk,
docker-platform-monitor.mk,
docker-router-advertiser.mk,
docker-teamd.mk,
docker-telemetry.mk
Next: Build debug flavor of final images with regular dockers replaced with debug dockers where available.
* Updated Makefile infrastructure to build debug images.
As a sample, platform/broadcom/docker-orchagent-brcm.mk is updated to add a docker-orchagent-brcm-dbg.gz target.
Now "BLDENV=stretch make target/docker-orchagent-brcm-dbg.gz" will build the debug image.
This debug image can be used in any linux box to inspect core file. If your module's external dependency can be suitably mocked, you my even manually run it inside.
"docker run -it --entrypoint=/bin/bash e47a8fb8ed38"
You may map the core file path to this docker run.
* Dropped the regular binary using DBG_PACKAGES and a small name change to help readability.
* Tweaked the changes to retain the existing behavior w.r.t INSTALL_DEBUG_TOOLS=y.
When this change ('building debug docker image transparently') is extended to all dockers, this flag would become redundant. Yet, there can be some test based use cases that rely on this flag.
Until after all the dockers gets their debug images by default and we switch all use cases of this flag to use the newly built debug images, we need to maintain the existing behavior.
[devices] add new accton platform minipack.
Add support for new platform, minipack.
It has
CPU: Broadwell DE – D1527
MAC: Tomahawk3(BCM56980).
PHY:Broadcom BCM81724, 4 pcs, Gearbox for PIM-16Q
BMC:AST2520
8 hot-swappable Port-Interface-Modules, each of them has 16*100G QSFP.
- What I did
Add device and platform files for minipack.
- How I did it
Add as SONiC Porting Guide.
- How to verify it
decode-syseeprom
sensors
psuutil
sfputil
thermal monitor
bcmsh on port status
(port LEDs may not working)
dell_ich module fails to load sometimes due to the failure of pci_get_drvdata().
This function is responsible for fetching INTEL PCI related memory handle in kernel. This is implemented in lpc_ich kernel module.
Due to race in addition/deletion of kernel modules, sometimes lpc_ich loads after dell_ich.
Because of this behaviour dell_ich module fails to load.
Fixed by addding dependency between modules.
Removed i2c_mux_gpio module from blacklist entry as it is not the original root case of this issue.
- Include helix4 fix.
- Include support for TD2 56854.
- Add dummy support for SAI_PORT_ATTR_ADVERTISED_SPEED.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [security kernel] Upgrade kernel from 4.9.110-3+deb9u2 to 4.9.110-3+deb9u6
short version: 4.9.0-7 to 4.9.0-8
See changelogs for security fixes:
https://tracker.debian.org/media/packages/l/linux/changelog-4.9.110-3deb9u6
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
* Update sonic-linux-kernel submodule after it was merged
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
knet driver unload takes about 30 seconds to remove netdevs. This cuts
into our warm reboot time budget.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* Update arista drivers submodule
* Ignore the possible timestamp warning in tar extraction
* Add verbosity toggle to boot0
Console logging is slow because of the 9600 baud rate.
Some time can be saved by decreasing the console verbosity.
* Add hook mechanism in boot0.
Support additional features in boot0 via hooks.
Hooks are unpacked and executed at post-install or pre-exec time.
* Fix 7170 sensors.conf file
Fix critical temperature settings for MAX6658 sensors
* Fix the random swap of storage devices
For arista 7050 switches running with linux 4.9, it is likely the device
name of flash drive (/dev/sda) and usb (/dev/sdb) randomly swap in kernel
booting, depending on which one is ready first. It breaks the expectation
that flash will be mounted as root by setting root=/dev/sda1. This patch
will correct ROOT to flash device refering to the path under block_flash.
* Fix 7170 fancontrol
* Do not remove aquota.user file in boot0
This file is a filesystem protected file used by EOS.
It can be simply removed and will make the SONiC installation failed if
not skipped.
* Fix broadcom lane map for 7050-QX32S
First port lane map needs to be swapped.
* Update arista submodules for SFP txdisable toggle
With this update the SFPs will set txdisable to 0 when out of reset.
Allowing optical cables to be used on these ports.
* [syncd] warn shutdown syncd process when warm boot is enabled
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [warmboot] mount folder to hold warmboot temporary files
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* Fix a typo
* [device][platform] d6254qs d6556 platform porting
[device][platform] sensor and status led support for d7032q28b d7254q28b d7264q28b d6254qs d6556
[device][platform] qos support for d7032q28b d7254q28b
[device][platform] service configuration files for d7032q28b d7254q28b d7264q28b d6254qs d6556
* remove binary files and remove non-supported attributes in config.bcm
* remove gpio-ich here. file a PR in sonic-linux-kernel instead.
* remove unnecessary comments
* add GPL license
* Update ag9032v1 and ag9064 modules.
Signed-off-by: neal tai <neal.tai@deltaww.com>
* Fix the sfputil.py when convert an integer to hexadecimal without the 'L' trailing.
Signed-off-by: neal tai <neal.tai@deltaww.com>
* [platform/haliburton] Fix kernel panic when remove smc module.
* [platform/haliburton] Chanage sysfs to support module interrupt
* [device/haliburton] Update sfputil to use new sysfs.
* [device/haliburton] sfputil to support xcvrd monitoring.
led start bcm cmd triggers link state notifications.
This is quick fix to avoid such fake link state notifications.
Signed-off-by: Guohan Lu <gulv@microsoft.com>
* [device]: Modify SFPUtil for inventec-d7032
[device]: Add front panel led support for Inventec-d7032
[platform]: Add transceiver monitor daemon for Inventec-d7032 and Inventec-d7054
* [device] follow new porting guide to have broadcom config under device folder
* remove license
* [device] Update arista driver submodule
* Set Arista scd driver config
Set ARISTA_SCD_DRIVER_CONFIG config to build and
include scd driver to resulting Arista deb packages
* Added new platform support DellEMC - Z92264f - 64x100
* Includes changes with Makefiles, sfputil, eeprom and default minigraph
* Led support for Z9264f platform
* Includes changes on default minigraph
* ipmitool implementation in pmon docker. platform_sensors script is inclued in pmon startup