3012 Commits

Author SHA1 Message Date
Stephen Hemminger
c07f42ec0b pci: cleanup scan loop
Do some cleanup of pci scan loop.
  * check errors first
  * don't initialize variables where not necessary
  * cuddle else (follow existing style)
  * chop off conditional after return

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2015-08-03 18:03:06 +02:00
Thomas Monjalon
3fc36d76ab pci: fix build on FreeBSD
Build log:
lib/librte_eal/bsdapp/eal/eal_pci.c:462:9: error:
incompatible integer to pointer conversion passing 'u_int32_t'
(aka 'unsigned int') to parameter of type 'void *'

It is fixed by passing the pointer of pi.pi_data to memcpy.

By the way, it seems strange that pi_data is initialized twice:
	.pi_data = *(u_int32_t *)buf
	memcpy(&pi.pi_data, buf, len);

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 17:50:07 +02:00
Thomas Monjalon
87b1faa0e0 bnx2x: fix part of 32-bit build
Example of errors:
	error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
	error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 5 has type ‘uint64_t
	error: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 6 has type ‘unsigned int’

Only 2 files are fixed. The others errors are left as exercise to the authors.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 17:39:11 +02:00
Thomas Monjalon
a9b8635827 bnx2x: fix build with clang
Build log:
	error: unused function 'bnx2x_hilo'

No need to keep an unused function.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 17:26:29 +02:00
Thomas Monjalon
fe716d3802 bnx2x: fix build with debug enabled
Build log:
	error: unused variable ‘cid’
	error: ‘RTE_LOG_WARN’ undeclared
	error: expected ‘)’ before ‘sc’

There were unused variables defined for debug but not used in debug log because
it was ifdef'ed a the wrong condition (RTE_LIBRTE_BNX2X_DEBUG_DRIVER).

The warning were using WARN instead of WARNING.

Some debug messages had some extra parameters.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 17:25:00 +02:00
Thomas Monjalon
17f0ca796f bnx2x: fix build as shared library
Build log:
	Must Specify a librte_pmd_bnx2x.so..1 ABI version

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 17:14:53 +02:00
Wang Xiao W
55a3fb5f7c fm10k: fix Tx queue cleaning after start error
When a Tx queue fails to start in fm10k_dev_start, all Rx queues
and Tx queues that are started should be cleaned before the
function returns an error.

Signed-off-by: Wang Xiao W <xiao.w.wang@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
2015-08-03 16:53:07 +02:00
Wang Xiao W
aa86864085 fm10k: fix queue disabling
In Rx and Tx queue_disable functions, the index of queue should
be qnum other than i which is the iteration of time expiration.

Signed-off-by: Wang Xiao W <xiao.w.wang@intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
2015-08-03 16:50:21 +02:00
John McNamara
4a5d5d5422 i40e: fix ieee1588 timestamping with next ABI
Fixes issue where ieee15888 timestamping doesn't work for the i40e
pmd when RTE_ABI_NEXT is enabled.

Also refactors repeated ieee15888 flag checking and setting
code into a function.

Test report: http://dpdk.org/ml/archives/dev/2015-August/022496.html

Reported-by: Huilong Xu <huilongx.xu@intel.com>
Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Tested-by: Huilong Xu <huilongx.xu@intel.com>
2015-08-03 14:48:28 +02:00
Wenzhuo Lu
cff4a985ef igb: fix ieee1588 timestamping
Ieee1588 reads system time to set its timestamp. On 1G NICs, for example,
i350, system time is disabled by default. It means the ieee1588 timestamp
will always be 0.
This patch enables system time when ieee1588 is enabled.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
2015-08-03 14:42:22 +02:00
Zhe Tao
830118e7f3 lpm: fix depth small entry add
When adding a "depth small" entry, if its extended flag is not set and
its depth is smaller than the one in the tbl24, nothing should be done
otherwise will operate on the wrong memory area.

Signed-off-by: Zhe Tao <zhe.tao@intel.com>
Acked-by: Cunming Liang <cunming.liang@intel.com>
2015-08-03 13:50:00 +02:00
Robert Sanford
a4b7a5a45c timer: fix race condition
Eliminate problematic race condition in rte_timer_manage() that can
lead to corruption of per-lcore pending-lists (implemented as
skip-lists). The race condition occurs when rte_timer_manage() expires
multiple timers on lcore A, while lcore B simultaneously invokes
rte_timer_reset() for one of the expiring timers (other than the first
one).

Lcore A splits its pending-list, creating a local list of expired timers
linked through their sl_next[0] pointers, and sets the first expired
timer to the RUNNING state, all during one list-lock round trip.
Lcore A then unlocks the list-lock to run the first callback, and that
is when A and B can have different interpretations of the subsequent
expired timers' true state. Lcore B sees an expired timer still in the
PENDING state, atomically changes the timer to the CONFIG state, locks
lcore A's list-lock, and reinserts the timer into A's pending-list.
The two lcores try to use the same next-pointers to maintain both lists!

Our solution is to remove expired timers from the pending-list and try
to set them all to the RUNNING state in one atomic step, i.e.,
rte_timer_manage() should perform these two actions within one
ownership of the list-lock.

After splitting the pending-list at the current point in time and trying
to set all expired timers to the RUNNING state, we must put back into
the pending-list any timers that we failed to set to the RUNNING state,
all while still holding the list-lock. It is then safe to release the
lock and run the callback functions for all expired timers that remain
on our local run-list.

Signed-off-by: Robert Sanford <rsanford@akamai.com>
2015-08-03 12:43:01 +02:00
Robert Sanford
6d2d5e19e0 timer: add race condition test
Add new timer-manage race-condition test: We wrote a test to confirm
our suspicion that we could crash rte_timer_manage() under the right
circumstances. We repeatedly set several timers to expire at roughly
the same time on the master core. The master lcore just delays and runs
rte_timer_manage() about ten times per second. The slave lcores all
watch the first timer (timer-0) to see when rte_timer_manage() is
running on the master, i.e., timer-0's state is not PENDING.
At this point, each slave attempts to reset a subset of the timers to
a later expiration time. The goal here is to have the slaves moving
most of the timers to a different place in the master's pending-list,
while the master is traversing the same next-pointers (the slaves'
sl_next[0] pointers) and running callback functions. This eventually
results in the master traversing a corrupted linked-list.
In our observations, it results in an infinite loop.

Signed-off-by: Robert Sanford <rsanford@akamai.com>
2015-08-03 12:43:01 +02:00
Robert Sanford
a91311f45b timer: fix synchronization in stress test
Fix app/test timer stress test 2: Sometimes this test fails and
seg-faults because the slave lcores get out of phase with the master.
The master uses a single int, 'ready', to synchronize multiple slave
lcores through multiple phases of the test.

To resolve, we construct simple synchronization primitives that use one
atomic-int state variable per slave. The master tells the slaves when to
start, and then waits for all of them to finish. Each slave waits for
the master to tell it to start, and then tells the master when it has
finished.

Signed-off-by: Robert Sanford <rsanford@akamai.com>
2015-08-03 12:43:01 +02:00
Chao Zhu
ce10b21bf6 eal/ppc: fix cpu cycle count for little endian
On IBM POWER8 PPC64 little endian architecture, the definition of tsc
union will be different. This patch fix this to enable the right output
from rte_rdtsc().

Signed-off-by: Chao Zhu <chaozhu@linux.vnet.ibm.com>
2015-08-03 12:43:01 +02:00
John McNamara
5668a2b58e ethdev: fix ABI breakage
Fix for ABI breakage introduced in LRO addition. Moves
lro bitfield to the end of the struct/member.

Fixes: 8eecb3295aed (ixgbe: add LRO support)

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Vlad Zolotarov <vladz@cloudius-systems.com>
2015-08-03 12:43:01 +02:00
Thomas Monjalon
a102e32660 config: remove kni options for bsd
KNI is a Linux-only kernel module.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
2015-08-03 12:42:55 +02:00
Thomas Monjalon
1690936b14 config: enable same drivers options for linux and bsd
Enable vector ixgbe and i40e bulk alloc for bsd as it is
already done for linux.

Fixes: 304caba12643 ("config: fix bsd options")
Fixes: 0ff3324da2eb ("ixgbe: rework vector pmd following mbuf changes")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 00:38:27 +02:00
Thomas Monjalon
501945eec0 ixgbe: fix offload config option name
The RX_OLFLAGS option was renamed from DISABLE to ENABLE in driver code
and linux config.
It is now renamed also in bsd config and documentation.

Fixes: 359f106a69a9 ("ixgbe: prefer enabling olflags rather than not disabling")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 00:38:27 +02:00
Helin Zhang
921353134f i40e: fix descriptor done flag with odd address
Header buffer address for header split will be filled with the
physical address for DMA, which is actually not needed at all,
as header split hasn't been supported. Hardware requires the
least bit of header address which is 'Descriptor Done' bit when
write back should be set to 0 by driver.
The issue is that if the user wants to reserve an odd number of
bytes between the mbuf header and data buffer, the physical address
to be filled in the descriptor would happen to be odd. That means
the DD bit would be set to non-zero by driver. That will result in
reporting descriptor done wrongly.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
2015-08-03 00:38:27 +02:00
Wenzhuo Lu
a711f4dbb5 e1000: fix descriptor done flag with odd address
Header buffer address for header split will be filled with the physical
address for DMA, which is actually not needed at all, as header split
hasn't been supported. Hardware requires the least bit of header address
which is 'Descriptor Done' bit when write back should be set to 0 by driver.
The issue is that if the user wants to reserve an odd number of bytes between
the mbuf header and data buffer, the physical address to be filled in the
descriptor would happen to be odd. That means the DD bit would be set to
non-zero by driver. That will result in reporting descriptor done wrongly.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-08-03 00:38:27 +02:00
Olivier Matz
a386a3e124 mbuf: enforce alignment of private area
It looks better to have a data buffer address that is aligned to
8 bytes. This is the case when there is no mbuf private area, but
if there is one, the alignment depends on the size of this area
that is located between the mbuf structure and the data buffer.

Indeed, some drivers expects to have the buffer address aligned
to an even address, and moreover an unaligned buffer may impact
the performance when accessing to network headers.

Add a check in rte_pktmbuf_pool_create() to verify the alignment
constraint before creating the mempool. For applications that use
the alternative way (direct call to rte_mempool_create), also
add an assertion in rte_pktmbuf_init().

By the way, also add the MBUF log type.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2015-08-03 00:38:26 +02:00
Nelio Laranjeiro
113c8e13c4 mlx4: fix shared library dependency
librte_pmd_mlx4.so needs to be linked with libibverbs otherwise, the PMD is
not able to open Mellanox devices and the following message is printed by
testpmd at startup
"librte_pmd_mlx4: cannot access device, is mlx4_ib loaded?".

Applications dependency on libibverbs are moved to be only valid in static
mode, in shared mode, applications do not depend on it anymore,
librte_pmd_mlx4.so keeps this dependency and thus is linked with libibverbs.

MLX4 cannot be supported in combined shared library because there is no clean
way of adding -libverbs to the combined library.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2015-08-03 00:38:26 +02:00
Nelio Laranjeiro
bef06a8a06 mk: set library dependencies in shared object file
Some .so libraries needs to be linked with external libraries.  For that the
LDLIBS and EXTRA_LDFLAGS variables should be present on the link line when
those .so files are created.  PMD Makefile is responsible for filling the
LDLIBS variable with the link to the external library it needs.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2015-08-03 00:38:26 +02:00
Olivier Matz
0ea73979aa eal: fix x32 build
Compiling for dpdk x86_x32 gives the following error:

In file included from /usr/include/sys/sysctl.h:63:0,
                 from lib/librte_eal/common/eal_common_timer.c:39:
/usr/include/bits/sysctl.h:19:3: error: #error "sysctl system call is unsupported in x32 kernel"
 # error "sysctl system call is unsupported in x32 kernel"
   ^

Including sysctl.h was added by mistake when merging bsd and linux EAL
timer code. It can be safely removed in this file, fixing the
compilation.

Fixes: 040cf8a411 ("eal: deduplicate timer functions")

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-08-03 00:38:26 +02:00
Thomas Monjalon
d43777cb15 log: use simple macro
For consistency, RTE_LOG macro should be used instead of rte_log function.
The macro can be pruned at build time, though these logs have a high level
and should not pruned.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-07-30 20:16:04 +02:00
Stephen Hemminger
7cf90aeb8d drivers: allow pruning log during build
Some drivers was not following DPDK convention and
was leaving logging always in even if LOG_LEVEL was configured
to disable debug logs.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
[Thomas: apply same fix to i40e, fm10k and bnx2x]
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-07-30 20:16:04 +02:00
Stephen Hemminger
fa400b6268 ixgbe: raise log level of significant events
Customers often screen off info level messages, so raise log
level of significant events.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2015-07-30 20:15:56 +02:00
Stephen Hemminger
371fb68f18 ixgbe: fix log level of debug messages
All the debug chatter messages in the system log causes
complaints from users. Change the INFO messages to DEBUG
for normal startup kind of stuff.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2015-07-30 20:15:56 +02:00
Stephen Hemminger
03e93ba4f6 e1000: raise log level of significant events
Any message about incorrect API usage should be at NOTICE
level or above.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2015-07-30 20:15:50 +02:00
Stephen Hemminger
f9ea79e670 e1000: fix log level of debug messages
Any debug messages about hardware should be under debug (or removed)
and reduce customer visible log spam.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2015-07-30 20:15:50 +02:00
Michael Qiu
d4e8ad64fa app/testpmd: fix error message when closing port twice
When close one port twice, testpmd will give out wrong messagse.

testpmd> port stop  0
Stopping ports...
Checking link statuses...
Port 0 Link Up - speed 0 Mbps - full-duplex
Port 1 Link Up - speed 0 Mbps - full-duplex
Done
testpmd> port close 0
Closing ports...
Done
testpmd> port close 0
Closing ports...
Port 0 is now not stopped
Done
testpmd>

Signed-off-by: Michael Qiu <michael.qiu@intel.com>
2015-07-30 02:15:32 +02:00
Michael Qiu
78ef434ae2 app/testpmd: fix crash when port id out of bound
In testpmd, when using "rx_vlan add 1 77", it will be a segment fault
Because the port ID should be less than 32.

Fixes: edab33b1c01d ("app/testpmd: support port hotplug")

Signed-off-by: Michael Qiu <michael.qiu@intel.com>
2015-07-30 02:15:32 +02:00
Vladimir Medvedkin
49e01d6437 hash: fix build of toeplitz algorithm without SSE3
Make thash library arch-independent.
Leave unaligned union rte_thash_tuple if no support for SSE3.
Makes 32bit compiler happy by adding ULL suffix.

Signed-off-by: Vladimir Medvedkin <medvedkinv@gmail.com>
2015-07-30 02:15:32 +02:00
Maryam Tahhan
ff636407ca ixgbe: fix Tx error stats by setting it to 0
oerrors was txdgpc - hw_stats->gptc,
txdgpc is the number of packets DMA'ed by the host
and was being reset on every call to read stats so it could be < gptc.
Because we currently have no way to add txdgpc to struct hw_stats so
that we can maintain a persistent value per port oerrors has now been
set to 0. References to txdgpc is now removed as we don't use it. This
patch also removes rxnfgpc as it's not used anywhere.

Fixes: afebc86be134 ("ixgbe: refactor stats register reads")

Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2015-07-30 02:15:32 +02:00
Konstantin Ananyev
2f9b171503 ixgbe: fix number of segments with vector scattered Rx
Fixes: cf4b4708a88a (ixgbe: improve slow-path perf with vector scattered Rx)

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-07-30 02:15:32 +02:00
Konstantin Ananyev
1b20b07d86 ixgbe: fix scalar scattered Rx with CRC
For 2.1 release, in attempt to minimize number of RX routines to support,
ixgbe scatter and ixgbe LRO RX routines were merged into one
that can handle both cases.
Though I completely missed the fact, that while LRO could only be used
when HW CRC strip is enabled, scatter RX should work for both cases
(HW CRC strip on/off).
That patch restores missed functionality.

Fixes: 9d8a92628f21 ("ixgbe: remove simple scalar scattered Rx method")

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2015-07-30 02:15:32 +02:00
Xuelin Shi
2e49ae79eb ixgbe: fix data access on big endian cpu
1. cpu use data owned by ixgbe must use rte_le_to_cpu_xx(...)
2. cpu fill data to ixgbe must use rte_cpu_to_le_xx(...)
3. checking pci status with converted constant

Signed-off-by: Xuelin Shi <xuelin.shi@freescale.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2015-07-30 02:15:32 +02:00
Jingjing Wu
8d2686c0e4 i40evf: fix crash when setup Tx queues
This patch fixes the issue:
Testpmd crashed with Segmentation fault when setup tx queues on vf
Steps for reproduce:
  - create one vf device from i40e driver
  - bind vf device to igb_uio and start testpmd

With debugging tools, we saw the struct i40e_vf is cleared after
memcpy(&dev->data->dev_conf, dev_conf, sizeof(dev->data->dev_conf)) in
rte_eth_dev_configure, which should not happen, and the pointer to
i40e_vf isn't in the range of i40e_adapter.

The root cause is the dev_private_size in i40e virtual function driver
struct rte_i40evf_pmd was set incorrectly.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
Tested-by: Marvin Liu <yong.liu@intel.com>
2015-07-30 02:15:32 +02:00
Helin Zhang
66c51d2a52 eal/linux: fix build with extra pci config
Build log:
	lib/librte_eal/common/eal_common_pci.c:188:4: error:
	implicit declaration of function pci_config_space_set

The function rte_eal_pci_probe_one_driver, which calls
pci_config_space_set, was moved to eal_common_pci.c,
but pci_config_space_set was left in eal_pci.c with static specifier.

Fixes: 4d4ebca4 ("pci: merge probing and closing functions for linux and bsd")

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
2015-07-30 02:15:32 +02:00
Thomas Monjalon
ce9b8bb8b9 config: disable bnx2x driver
This driver has too many issues:
	- too big
	- bad coding style
	- no git history (dropped in 2 patches)
	- no documentation
	- no BSD support
	- no maintainer
And the biggest one, constraining this disabling:
	- many build issues

If the last 4 issues are not fixed in the next release 2.2,
the driver must be removed.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-07-28 22:09:30 +02:00
Xavier Simonart
6133acbe82 hash: fix crash when adding already inserted keys
When adding with cuckoo hash a key which was already inserted
a new slot is dequeued and then enqueued back, but the enqueue
operation was not done properly.

Fixes: 48a399119619 ("hash: replace with cuckoo hash implementation")

Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>
Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
2015-07-28 22:09:30 +02:00
Bernard Iremonger
81b97563f3 doc: update port hotplug in testpmd guide
Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Acked-by: Tetsuya Mukawa <mukawa@igel.co.jp>
2015-07-28 11:40:11 +02:00
Thomas Monjalon
760211bf26 eal/bsd: fix build
The BSD function for contigmem init and attach must now use the same name
as Linux (hugepage prefix) to avoid code duplication.
The attach function was renamed but the init function was forgotten.

Fixes: d12b6da14bfa ("eal: deduplicate memory initialization")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2015-07-28 10:29:51 +02:00
Thomas Monjalon
0afdac52be version: 2.1.0-rc2
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
v2.1.0-rc2
2015-07-28 00:29:24 +02:00
Jijiang Liu
181654b716 doc: add a VXLAN sample guide
Add a VXLAN sample guide in the sample_app_ug directory.
It includes:
    - Add the overlay networking picture with svg format.
    - Add the TEP termination framework picture with svg format.
    - Add the tep_termination.rst file
    - Change the index.rst file for the above pictures index.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Signed-off-by: Thomas Long <thomas.long@intel.com>
Acked-by: Marvin Liu <yong.liu@intel.com>
2015-07-28 00:24:09 +02:00
Jijiang Liu
d51d53b459 doc: comment testpmd checksum option
Add a comment for outer-ip option in csum command.
Set outer-ip option only when the packet is a IPv4 packet.

Signed-off-by: Jijiang Liu <jijiang.liu@intel.com>
Acked-by: Marvin Liu <yong.liu@intel.com>
2015-07-27 23:57:02 +02:00
Bernard Iremonger
2855b1ebd3 doc: fix kni command line
Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
2015-07-27 23:46:09 +02:00
Cunming Liang
aee3bc79cc examples/l3fwd-power: enable one-shot Rx interrupt and polling switch
The patch demonstrates how to handle per rx queue interrupt in a NAPI-like
implementation in userspace. The working thread mainly runs in polling mode
and switch to interrupt mode only if there is no packet received in recent polls.
The working thread returns to polling mode immediately once it receives an
interrupt notification caused by the incoming packets.
The sample keeps running in polling mode if the binding PMD hasn't supported
the rx interrupt yet. Now only ixgbe(pf/vf) and igb support it.

Signed-off-by: Danny Zhou <danny.zhou@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
2015-07-27 23:13:57 +02:00
Cunming Liang
c3cd3de0ab igb: enable Rx queue interrupts for PF
The patch does below for igb PF:
- Setup NIC to generate MSI-X interrupts
- Set the IVAR register to map interrupt causes to vectors
- Implement interrupt enable/disable functions

Signed-off-by: Danny Zhou <danny.zhou@intel.com>
Signed-off-by: Cunming Liang <cunming.liang@intel.com>
2015-07-27 23:13:57 +02:00