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1605bac6 |
| 24-Feb-2015 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): set up congestion management for netmap rx queues.
The hw.cxgbe.cong_drop knob controls the response of the chip when netmap queues are congested.
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53f2fbca |
| 11-Feb-2015 |
Glen Barber <gjb@FreeBSD.org> |
MFH: r278202,r278205-r278590
Sponsored by: The FreeBSD Foundation
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93466fc6 |
| 10-Feb-2015 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r278351 through r278498.
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9f3d45b6 |
| 08-Feb-2015 |
Baptiste Daroussin <bapt@FreeBSD.org> |
Merge from HEAD
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b3d44a68 |
| 08-Feb-2015 |
Navdeep Parhar <np@FreeBSD.org> |
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 pr
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.
MFC after: 2 weeks
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d86a5ff9 |
| 08-Feb-2015 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): a change to the synchronization rules within the the driver. This is purely cosmetic because the new rules are already followed.
MFC after: 1 week
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d899be7d |
| 19-Jan-2015 |
Glen Barber <gjb@FreeBSD.org> |
Reintegrate head: r274132-r277384
Sponsored by: The FreeBSD Foundation
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8f0ea33f |
| 13-Jan-2015 |
Glen Barber <gjb@FreeBSD.org> |
Reintegrate head revisions r273096-r277147
Sponsored by: The FreeBSD Foundation
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a4ed7276 |
| 03-Jan-2015 |
Enji Cooper <ngie@FreeBSD.org> |
MFhead @ r276594
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7951040f |
| 01-Jan-2015 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): major tx rework.
a) Front load as much work as possible in if_transmit, before any driver lock or software queue has to get involved.
b) Replace buf_ring with a brand new mp_ring (multipr
cxgbe(4): major tx rework.
a) Front load as much work as possible in if_transmit, before any driver lock or software queue has to get involved.
b) Replace buf_ring with a brand new mp_ring (multiproducer ring). This is specifically for the tx multiqueue model where one of the if_transmit producer threads becomes the consumer and other producers carry on as usual. mp_ring is implemented as standalone code and it should be possible to use it in any driver with tx multiqueue. It also has: - the ability to enqueue/dequeue multiple items. This might become significant if packet batching is ever implemented. - an abdication mechanism to allow a thread to give up writing tx descriptors and have another if_transmit thread take over. A thread that's writing tx descriptors can end up doing so for an unbounded time period if a) there are other if_transmit threads continuously feeding the sofware queue, and b) the chip keeps up with whatever the thread is throwing at it. - accurate statistics about interesting events even when the stats come at the expense of additional branches/conditional code.
The NIC txq lock is uncontested on the fast path at this point. I've left it there for synchronization with the control events (interface up/down, modload/unload).
c) Add support for "type 1" coalescing work request in the normal NIC tx path. This work request is optimized for frames with a single item in the DMA gather list. These are very common when forwarding packets. Note that netmap tx in cxgbe already uses these "type 1" work requests.
d) Do not request automatic cidx updates every 32 descriptors. Instead, request updates via bits in individual work requests (still every 32 descriptors approximately). Also, request an automatic final update when the queue idles after activity. This means NIC tx reclaim is still performed lazily but it will catch up quickly as soon as the queue idles. This seems to be the best middle ground and I'll probably do something similar for netmap tx as well.
e) Implement a faster tx path for WRQs (used by TOE tx and control queues, _not_ by the normal NIC tx). Allow work requests to be written directly to the hardware descriptor ring if room is available. I will convert t4_tom and iw_cxgbe modules to this faster style gradually.
MFC after: 2 months
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afbe8aa4 |
| 18-Dec-2014 |
Enji Cooper <ngie@FreeBSD.org> |
MFhead @ r275911 (also, sort out MK_* flags in BMAKE, etc on this branch)
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be281d70 |
| 13-Dec-2014 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r275715 through r275748.
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a7570ee3 |
| 12-Dec-2014 |
Navdeep Parhar <np@FreeBSD.org> |
Move KTR_CXGBE from t4_tom.h to adapter.h so that the base if_cxgbe code can use it too.
MFC after: 1 week
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d7e0694a |
| 08-Dec-2014 |
Dimitry Andric <dim@FreeBSD.org> |
Merge ^/head r275478 through r275622.
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2c3f939c |
| 08-Dec-2014 |
Enji Cooper <ngie@FreeBSD.org> |
MFhead @ r275589
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b741402c |
| 06-Dec-2014 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): allow the driver to use rx buffers that do not end on a pack boundary.
MFC after: 2 weeks
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e3207e19 |
| 06-Dec-2014 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): Allow for different pad and pack boundaries for different adapters. Set the pack boundary for T5 cards to be the same as the PCIe max payload size. The chip likes it this way.
In this re
cxgbe(4): Allow for different pad and pack boundaries for different adapters. Set the pack boundary for T5 cards to be the same as the PCIe max payload size. The chip likes it this way.
In this revision the driver allocate rx buffers that align on both boundaries. This is not a strict requirement and a followup commit will switch the driver to a more relaxed allocation strategy.
MFC after: 2 weeks
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9268022b |
| 19-Nov-2014 |
Simon J. Gerraty <sjg@FreeBSD.org> |
Merge from head@274682
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Revision tags: release/10.1.0 |
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107af8f2 |
| 05-Oct-2014 |
Neel Natu <neel@FreeBSD.org> |
IFC @r272481
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1ce4b357 |
| 04-Oct-2014 |
Alexander V. Chernikov <melifaro@FreeBSD.org> |
Sync to HEAD@r272516.
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2d891085 |
| 27-Sep-2014 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): implement if_get_counter.
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246e7a2b |
| 02-Sep-2014 |
Neel Natu <neel@FreeBSD.org> |
IFC @r269962
Submitted by: Anish Gupta (akgupt3@gmail.com)
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ee7b0571 |
| 19-Aug-2014 |
Simon J. Gerraty <sjg@FreeBSD.org> |
Merge head from 7/28
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1b833d53 |
| 13-Aug-2014 |
Alexander V. Chernikov <melifaro@FreeBSD.org> |
Sync to HEAD@r269943.
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4d6db4e0 |
| 02-Aug-2014 |
Navdeep Parhar <np@FreeBSD.org> |
cxgbe(4): some optimizations in freelist handling.
MFC after: 2 weeks.
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