(which should be a PCIE Gen 3 slot for this adapter) by looking back thru the PCI
parent devices to the slot device.
The fix above also corrects the bandwidth display to GT/s rather than the
incorrect Gb/s
Next, allow the use of ALTQ if you select the compile option IXGBE_LEGACY_TX.
Allow the use of 'unsupported' optic modules by a compile option as well.
Add a phy reset capability into the stop code, this is so a static configured
driver will still behave properly when taken down (not being able to unload it).
This revision synchronizes the shared code with Intel internal current code,
and note that it now includes DCB supporting code, this was necessitated by
some internal changes with the code, but it also will provide the opportunity
to develop this feature in the core driver down the road.
I have edited the README to get rid of some of the worse anachronisms in it
as well, its by no means as robust as I might wish at this point however.
Oh, I also have included some conditional stuff in the code so it will be
compatible in both the 9.X and 10 environments.
Performance has been a focus in recent changes and I believe this revision
driver will perform very well in most workloads.
MFC after: 2 weeks
Fixes:
- flow control - don't override user value on re-init
- fix to make 1G optics work correctly
- change to interrupt enabling - some bits were incorrect
for certain hardware.
- certain stats fixes, remove a duplicate increment of
ierror, thanks to Scott Long for pointing these out.
- shared code link interface changed, requiring some
core code changes to accomodate this.
- add an m_adj() to ETHER_ALIGN on the recieve side, this
was requested by Mike Karels, thanks Mike.
- Multicast code corrections also thanks to Mike Karels.
this case, allocate a plain mbuf and copy the frame into it, then send the
copy up the stack, leaving the original mbuf+cluster in place in the
receive ring for immediate re-use. This saves a trip through 2 of the
3 zones of the compound mbuf allocator, a trip through busdma, and a trip
through the 1 of the 3 mbuf destructors. For our load at Netflix, this can
lower CPU consumption by as much as 20%. The copy algorithm is based on
investigative work from Luigi Rizzo earlier in the year.
Reviewed by: jfv
Obtained from: Netflix
- Add a couple of new devices
- Flow control changes in shared and core code
- Bug fix to Flow Director for 82598
- Shared code sync to internal with required core change
Thanks to those helping in the testing and improvements to this driver!
MFC after:5 days
- {ixgbe,ixv}_header_split is passed to TUNABLE_INT, so delcare it
int, not bool.
- {ixgbe,ixv}_tx_ctx_setup() returns a boolean value, so declare it
bool, not int.
- {ixgbe,ixv}_tso_setup() returns a bool, so declare it bool, not boolean_t.
- {ixgbe,ixv}_txeof() returns a bool, so declare it bool, not boolean_t.
- Do not re-define bool if the symbol already exists.
MFC after: 2 weeks
Sponsored by: Isilon Systems, LLC
- This adds a VM SRIOV interface, ixv, it is however
transparent to the user, it links with the ixgbe.ko,
but when ixgbe is loaded in a virtualized guest with
SRIOV configured this will be detected.
- Sync shared code to latest
- Many bug fixes and improvements, thanks to everyone
who has been using the driver and reporting issues.
This adds new feature support for the 82599, a hardware
assist to LRO, doing this required a large revamp to the
RX cleanup code because the descriptor ring may not be
processed out of order, this necessitated the elimination
of global pointers.
Additionally, the RX routine now does not refresh mbufs
on every descriptor, rather it will do a range, and then
update the hardware pointer at that time. These are
performance oriented changes.
The TX side now has a cleaner simpler watchdog algorithm
as well, in TX cleanup a read of ticks is stored, that
can then be compared in local_timer to determine if
there is a hang.
Various other cleanups along the way, thanks to all who
have provided input and testing.
-This version has header split, and as a result a number of
aspects of the code have been improved/simplified.
- Interrupt handling refined for performance
- Many small bugs fixed along the way
MFC after: ASAP - in time for 7.1
-It has new hardware support
-It uses a new method of TX cleanup called Head Write Back
-It includes the provisional generic TCP LRO feature contributed
by Myricom and made general purpose by me. This should move into
the stack upon approval but for this driver drop its in here.
-Also bug fixes and etc...
MFC in a week if no serious issues arise.
The first drop was Beta, this code is expected to be the release version.
Note that this driver code will build in either 6.2 or 7. If you
use the code in 6.2 you will not get TSO or MSI/X support but it will
function in a legacy mode.
Approved by: re
