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296373 |
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04-Mar-2016 |
marius |
- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1 builds. - Update newvers.sh to reflect RC1. - Update __FreeBSD_version to reflect 10.3. - Update default pkg(8) configuration to use the quarterly branch.
Approved by: re (implicit) |
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284089 |
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06-Jun-2015 |
np |
MFC r278239 and r278374.
r278239: cxgbe(4): reserve id for iSCSI upper layer driver.
r278374: cxgbe(4): tidy up some of the interaction between the Upper Layer Drivers (ULDs) and the base if_cxgbe driver.
Track the per-adapter activation of ULDs in a new "active_ulds" field. This was done pretty arbitrarily before this change -- via TOM_INIT_DONE in adapter->flags for TOM, and the (1 << MAX_NPORTS) bit in adapter->offload_map for iWARP.
iWARP and hw-accelerated iSCSI rely on the TOE (supported by the TOM ULD). The rules are: a) If the iWARP and/or iSCSI ULDs are available when TOE is enabled then iWARP and/or iSCSI are enabled too. b) When the iWARP and iSCSI modules are loaded they go looking for adapters with TOE enabled and enable themselves on that adapter. c) You cannot deactivate or unload the TOM module from underneath iWARP or iSCSI. Any such attempt will fail with EBUSY.
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283854 |
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31-May-2015 |
np |
MFC r272719:
cxgbe/tom: don't leak resources tied to an active open request that cannot be sent to the chip because a prerequisite L2 resolution failed.
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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255411 |
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09-Sep-2013 |
np |
Rework the tx credit mechanism between the cxgbe/tom driver and the card. This helps smooth out some burstiness in the exchange.
Approved by: re (glebius)
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255006 |
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28-Aug-2013 |
np |
Change t4_list_lock and t4_uld_list_lock from mutexes to sx'es.
- tom_uninit had to be reworked not to hold the adapter lock (a mutex) around t4_deactivate_uld, which acquires the uld_list_lock. - the ifc_match for the interface cloner that creates the tracer ifnet had to be reworked as the kernel calls ifc_match with the global if_cloners_mtx held.
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252716 |
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04-Jul-2013 |
np |
Pay attention to TCP_NODELAY when it's set/unset after the connection is established.
MFC after: 1 day
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252705 |
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04-Jul-2013 |
np |
- Read all TP parameters in one place. - Read the filter mode, calculate various shifts, and use them properly during active open (in select_ntuple).
MFC after: 1 day
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249627 |
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18-Apr-2013 |
np |
cxgbe/tom: Update the CLIP table on the chip when there are changes to the list of IPv6 addresses on the system. The table is used for TOE+IPv6 only.
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248925 |
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30-Mar-2013 |
np |
cxgbe(4): Add support for Chelsio's Terminator 5 (aka T5) ASIC. This includes support for the NIC and TOE features of the 40G, 10G, and 1G/100M cards based on the T5.
The ASIC is mostly backward compatible with the Terminator 4 so cxgbe(4) has been updated instead of writing a brand new driver. T5 cards will show up as cxl (short for cxlgb) ports attached to the t5nex bus driver.
Sponsored by: Chelsio
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245935 |
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26-Jan-2013 |
np |
Add a couple of missing error codes. Treat CPL_ERR_KEEPALV_NEG_ADVICE as negative advice and not a fatal error.
MFC after: 3 days
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245448 |
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15-Jan-2013 |
np |
cxgbe/tom: Basic CLIP table management.
This is the Compressed Local IPv6 table on the chip. To save space, the chip uses an index into this table instead of a full IPv6 address in some of its hardware data structures.
For now the driver fills this table with all the local IPv6 addresses that it sees at the time the table is initialized. I'll improve this later so that the table is updated whenever new IPv6 addresses are configured or existing ones deleted.
MFC after: 1 week
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245441 |
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15-Jan-2013 |
np |
cxgbe/tom: Miscellaneous updates for TOE+IPv6 support (more to follow).
- Teach find_best_mtu_idx() to deal with IPv6 endpoints.
- Install correct protosw in offloaded TCP/IPv6 sockets when DDP is enabled.
- Move set_tcp_ddp_ulp_mode to t4_tom.c so that t4_tom.h can be included without having to drag in t4_msg.h too. This was bothering the iWARP driver for some reason.
MFC after: 1 week
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245276 |
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11-Jan-2013 |
np |
Overhaul the stid allocator so that it can be used for IPv6 servers too. The entry for an IPv6 server in the TCAM takes up the equivalent of two ordinary stids and must be properly aligned too.
MFC after: 1 week
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245274 |
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11-Jan-2013 |
np |
cxgbe(4): Add functions to help synchronize "slow" operations (those not on the fast data path) and use them instead of frobbing the adapter lock and busy flag directly.
Other changes made while reworking all slow operations: - Wait for the reply to a filter request (add/delete). This guarantees that the operation is complete by the time the ioctl returns. - Tidy up the tid_info structure. - Do not allow the tx queue size to be set to something that's not a power of 2.
MFC after: 1 week
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241394 |
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10-Oct-2012 |
kevlo |
Revert previous commit...
Pointyhat to: kevlo (myself)
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241370 |
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09-Oct-2012 |
kevlo |
Prefer NULL over 0 for pointers
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239514 |
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21-Aug-2012 |
np |
Minor cleanup: use bitwise ops instead of pointless wrappers around setbit/clrbit.
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239344 |
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17-Aug-2012 |
np |
Support for TCP DDP (Direct Data Placement) in the T4 TOE module.
Basically, this is automatic rx zero copy when feasible. TCP payload is DMA'd directly into the userspace buffer described by the uio submitted in soreceive by an application.
- Works with sockets that are being handled by the TCP offload engine of a T4 chip (you need t4_tom.ko module loaded after cxgbe, and an "ifconfig +toe" on the cxgbe interface). - Does not require any modification to the application. - Not enabled by default. Use hw.t4nex.<X>.toe.ddp="1" to enable it.
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237263 |
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19-Jun-2012 |
np |
- Updated TOE support in the kernel.
- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs. These are available as t3_tom and t4_tom modules that augment cxgb(4) and cxgbe(4) respectively. The cxgb/cxgbe drivers continue to work as usual with or without these extra features.
- iWARP driver for Terminator 3 ASIC (kernel verbs). T4 iWARP in the works and will follow soon.
Build-tested with make universe.
30s overview ============ What interfaces support TCP offload? Look for TOE4 and/or TOE6 in the capabilities of an interface: # ifconfig -m | grep TOE
Enable/disable TCP offload on an interface (just like any other ifnet capability): # ifconfig cxgbe0 toe # ifconfig cxgbe0 -toe
Which connections are offloaded? Look for toe4 and/or toe6 in the output of netstat and sockstat: # netstat -np tcp | grep toe # sockstat -46c | grep toe
Reviewed by: bz, gnn Sponsored by: Chelsio communications. MFC after: ~3 months (after 9.1, and after ensuring MFC is feasible)
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