Commit Graph

290 Commits

Author SHA1 Message Date
Xiao Wang
193ed38a3d net/ixgbe/base: add VF promiscuous mode constants
Add new definitions to support VF unicast promiscuous mode which
will be implemented in a later patch.

Besides, rename definitions of subdevice IDs on SFP LOM to make it
easier to distinguish.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
4ec839e43b net/ixgbe/base: rework X550em_a 1G PHY init
Fully initialize X550em_a 1G PHYs; move the PHY definitions from
ixgbe_x550.h to ixgbe_phy.h, where they really belong; define
register numbers in decimal because that is how they are in the spec.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
c3dcab83a4 net/ixgbe/base: extract PHY probing function
Move the PHY probe code into a separate function so that it can be
reused. A subsequent patch will use it for configurations that
provide the PHY address explicitly.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
b080425751 net/ixgbe/base: move X550 MAC ops init into functions
This patch introduces new init_ops functions for X550EM_a and X550EM_x.
This makes it easier to assign function pointers with specific
dependencies (like media type) for each MAC.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
260e2e22e2 net/ixgbe/base: move multicast mode update
This patch adds update_xcast_mode callback in mac ops, and moves
ixgbevf_update_xcast_mode function into base code.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
c3fb605491 net/ixgbe/base: support X550em_a 10G PHY
This patch uses the shared Management Data Input/output (MDIO)
functions ixgbe_read_phy_reg_x550a and ixgbe_write_phy_reg_x550a
for X550em_a 10G PHY which supports flow control auto-negotiation.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
39eab21092 net/ixgbe/base: change endianness of PHY data
The x550a related firmware reverses the endianness of the PHY data read
and written via host interface command, so make corresponding changes
to that.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
1726b9cd9c net/ixgbe/base: remove X550em SFP iXFI setup
This patch removes X550em SFP iXFI setup for the drivers since there
is no released hardware production with SFP iXFI.

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Xiao Wang
11c1941b4a net/ixgbe/base: fix pointer check
The vfta_delta value rather than the pointer should be checked.

Fixes: b978f7b38c ("net/ixgbe/base: simplify VLAN management")

Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Yunjian Wang
6e67657c26 net/ixgbe: use macro for PCI log format
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Remy Horton <remy.horton@intel.com>
2016-09-30 12:27:18 +02:00
Alex Zelezniak
a9a68b61ad net/ixgbe: fix VF reset to apply to correct VF
In SR-IOV configuration, queues 0 - nb_rx_queues belong to VF0,
which means that with the current implementation when a reset mbox
message comes from any VF, it affects the settings of VF0.

Fix this by using PF queue index to update the correct queue.

Fixes: dbb0b8737f ("ixgbe: add vlan offload support")

Signed-off-by: Alex Zelezniak <alexz@att.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Wang Wei
a75e10c9f7 net/ixgbe: start Rx/Tx after all config done
Starting rxtx before flow director config will cause driver not to
receive packets from NIC.

Signed-off-by: Wang Wei <lnykww@gmail.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Yury Kylulin
f853230920 net/ixgbe: fix mbuf leak during Rx queue release
For the vector PMD, release all mbufs from the Rx queue if no packets
are received after device start.

Fixes: 11b220c649 ("ixgbe: fix release queue mbufs")

Signed-off-by: Yury Kylulin <yury.kylulin@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-09-30 12:27:18 +02:00
Yuanhan Liu
0af54f09d9 net: fix clang build
Interestingly, clang and gcc has different prototype for _mm_prefetch().
For gcc, we have

   _mm_prefetch (const void *__P, enum _mm_hint __I)

While for clang, it's

   #define _mm_prefetch(a, sel) (__builtin_prefetch((void *)(a), 0, (sel)))

That's how the following error comes with clang:

   error: cast from 'const void *' to 'void *' drops const qualifier
   [-Werror,-Wcast-qual]
           _mm_prefetch((const void *)rused, _MM_HINT_T0);
   /usr/lib/llvm-3.8/bin/../lib/clang/3.8.0/include/xmmintrin.h:684:58:
   note: expanded from macro '_mm_prefetch'
            #define _mm_prefetch(a, sel) (__builtin_prefetch((void *)(a),
                                          0, (sel)))

What's weird is that the build was actaully Okay before. I met it while
apply Jerin's vector support for ARM patch set: he just move this piece
of code to another file, nothing else changed.

This patch fix the issue when Jerin's patchset is applied. Thus, I think
it's still needed.

Similarly, make the same change to other _mm_prefetch users, just in case
this weird issue shows up again somehow later.

Fixes: fc3d66212f ("virtio: add vector Rx")
Fixes: c95584dc2b ("ixgbe: new vectorized functions for Rx/Tx")
Fixes: 9ed94e5bb0 ("i40e: add vector Rx")
Fixes: 7092be8437 ("fm10k: add vector Rx")

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Acked-by: Jing Chen <jing.d.chen@intel.com>
2016-09-28 02:18:39 +02:00
Jan Viktorin
2f3193cf0f pci: inherit common driver in PCI driver
Remove the 'name' member from rte_pci_driver and move to generic
rte_driver.

Most of the PMD drivers were initially using DRIVER_REGISTER_PCI(<name>..)
as well as assigning a name to eth_driver.pci_drv.name member.
In this patch, only the original DRIVER_REGISTER_PCI(<name>..) name has
been populated into the rte_driver.name member - assignments through
eth_driver has been removed.

Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
[Shreyansh: Rebase and expand changes to newly added files]
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: David Marchand <david.marchand@6wind.com>
2016-10-03 16:33:55 +02:00
David Marchand
c830cb2954 drivers: use PCI registration macro
Simplify crypto and ethdev pci drivers init by using newly introduced
init macros and helpers.
Those drivers then don't need to register as "rte_driver"s anymore.

Exceptions:
- virtio and mlx* use RTE_INIT directly as they have custom initialization
  steps.
- VDEV devices are not modified - they continue to use PMD_REGISTER_DRIVER.

Update documentation for replacing an example referring to
PMD_REGISTER_DRIVER.

Signed-off-by: David Marchand <david.marchand@6wind.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2016-10-03 16:33:23 +02:00
Pablo de Lara
2f45703c17 drivers: make driver names consistent
As discussed in the past release, driver names are modified
to be more consistent, and the future driver should follow
this new convention.

Driver names consist of:
"driver category"_"driver folder name"_"optional extra name".

For example:
- Crypto null driver       -> "crypto_null"
- Network IXGBE VF driver  -> "net_ixgbe_vf"

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-09-16 11:55:59 +02:00
Amine Kherbouche
f03723017a remove unused ring includes
This patch removes all unused <rte_ring.h> headers.

Signed-off-by: Amine Kherbouche <amine.kherbouche@6wind.com>
2016-09-16 10:16:02 +02:00
Ferruh Yigit
221fba3b98 net/ixgbe: move PCI device IDs from EAL
PCI device ids moved from common header into ixgbe driver itself.

KNI starts using pci_device_id from kni/ethtool/ixgbe driver, this is
only for KNI ethtool support, KNI data path is not affected.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-08-23 15:32:33 +02:00
Ido Barnea
ee5b56e4c9 net/ixgbe/base: fix C++ build
Signed-off-by: Ido Barnea <ibarnea@cisco.com>
2016-07-22 01:20:35 +02:00
Olivier Matz
ba9eebbb60 net/ixgbe: fix build whith offload flags disabled
The ixgbe driver does not compile if CONFIG_RTE_IXGBE_RX_OLFLAGS_ENABLE=n
because the macro has not the proper number of parameters. To reproduce
the issue:

  make config T=x86_64-native-linuxapp-gcc
  sed -i 's,\(IXGBE_RX_OLFLAGS_ENABLE\)=y,\1=n,' build/.config
  make -j4
  [...]
   ixgbe_rxtx_vec_sse.c: In function ‘_recv_raw_pkts_vec’:
   ixgbe_rxtx_vec_sse.c:345:53: error:
     macro "desc_to_olflags_v" passed 3 arguments, but takes just 2
      desc_to_olflags_v(descs, vlan_flags, &rx_pkts[pos]);
                                                        ^
   ixgbe_rxtx_vec_sse.c:345:3: error:
     ‘desc_to_olflags_v’ undeclared (first use in this function)
      desc_to_olflags_v(descs, vlan_flags, &rx_pkts[pos]);
      ^
   ixgbe_rxtx_vec_sse.c:231:10: error:
     variable ‘vlan_flags’ set but not used
     uint8_t vlan_flags;
             ^

This patch fixes the number of arguments in the macro, and ensures that
vlan_flags is marked as used to avoid the third error.

Fixes: b37b528d95 ("mbuf: add new Rx flags for stripped VLAN")

Reported-by: Amin Tootoonchian <amint@icsi.berkeley.edu>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2016-07-05 10:59:28 +02:00
Zyta Szpak
001a1c0f98 ethdev: get registers width
The ethtool app was allocating too little space for 64-bit
registers which resulted in memory corruption.

Removes hard-coded assumption that device registers
are always 32 bits wide. The rte_eth_dev_get_reg_length
and rte_eth_dev_get_reg_info callbacks did not
provide register size to the app in any way while is
needed to allocate correct number of bytes before
retrieving registers using rte_eth_dev_get_reg.

This commit changes rte_eth_dev_get_reg_info so that
it can be used to retrieve both the number of registers
and their width, and removes the now-redundant
rte_eth_dev_get_reg_length.

Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Acked-by: Remy Horton <remy.horton@intel.com>
2016-07-10 14:55:42 +02:00
Neil Horman
cb6696d220 drivers: update registration macro usage
Modify the PMD_REGISTER_DRIVER macro, adding a name argument to it.  The
addition of a name argument creates a token that can be used for subsequent
macros in the creation of unique symbol names to export additional bits of
information for use by the pmdinfogen tool.  For example:

PMD_REGISTER_DRIVER(ena_driver, ena);

registers the ena_driver struct as it always did, and creates a symbol
const char this_pmd_name0[] __attribute__((used)) = "ena";

which pmdinfogen can search for and extract.  The subsequent macro

DRIVER_REGISTER_PCI_TABLE(ena, ena_pci_id_map);

creates a symbol const char ena_pci_tbl_export[] __attribute__((used)) =
"ena_pci_id_map";

Which allows pmdinfogen to find the pci table of this driver

Using this pattern, we can export arbitrary bits of information.

pmdinfo uses this information to extract hardware support from an object
file and create a json string to make hardware support info discoverable
later.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Remy Horton <remy.horton@intel.com>
2016-07-06 23:21:40 +02:00
Remy Horton
d085232a14 ethdev: remove redundant id field in xstats name lookup
For all drivers that currently implement xstats, the id field in the
rte_eth_stats_name structure equals the entry's array index. This
patch eliminates the redundant id field as a direct index lookup is
faster than a search for the matching id field.

Suggested-by: Olivier Matz <olivier.matz@6wind.com>
Signed-off-by: Remy Horton <remy.horton@intel.com>
2016-07-01 16:09:06 +02:00
Daniel Mrzyglod
b47b107fd0 net/ixgbe: remove useless assignment
The "end" variable is assigned and then two lines later is assigned a
different value, making the first assignment useless. Remove it.

Coverity issue: 13335
Fixes: cf4b4708a8 ("ixgbe: improve slow-path perf with vector scattered Rx")

Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2016-06-27 18:31:57 +02:00
Beilei Xing
e9e5435479 net/ixgbe/base: update documentation for base code update
The ixgbe base driver was updated to version
cid-10g-shared-code.2016.04.12

The changes include:
Added sgmii link for X550.
Added mac link setup for X550a SFP and SFP+.
Added KR support for X550em_a.
Added new phy definitions for M88E1500.
Added support for the VLVF to be bypassed when adding/removing
a VFTA entry.
Added X550a flow control auto negotiation support.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
e230e7433c net/ixgbe/base: define bit to enable crosstalk workaround
A work around for a new crosstalk erratum that causes link flap in
entry cages has been introduced. So this patch defines the bit in
NVM that will tell software if this work around is needed.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
ee80eb5565 net/ixgbe/base: add flow control autoneg for X550a
This patch adds X550a flow control auto negotiation support.
ixgbe_setup_fc_x550a and ixgbe_fc_autoneg_X550a functions are
added to setup and enable flow control. MAC ops function pointer
fc_autoneg was added so that hardware specific fc autoneg functions
can be called from ixgbe_fc_enable_generic.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
dad45d1765 net/ixgbe/base: allow setting MAC anti spoofing per VF
Make ixgbe_set_mac_anti_spoofing() consistent with the other
functions that deal with setting VLAN and Ethertype spoofing by
changing the prototype to accept a VF parameter.

Also change the logic for writing the PFVFSPOOF register to be similar
to the MAC and Ethertype functions.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
7887b02464 net/ixgbe/base: fix endianness
This patch fixes endianness issues about host interface command.

Fixes: ad66a85dce ("ixgbe/base: new FW values")
Fixes: 0790adeb56 ("ixgbe/base: support X550em_a device")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
3c5c9e096b net/ixgbe/base: use 8 bits for PCI functions
Since PCIe standard defines maximum of 8 functions per device lan_id
is a value 0..7. Because of that, lan_id don't need to be u16.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
72ceac0fca net/ixgbe/base: unify coding style
This patch changes static keyword to STATIC definition, which can be
redefined depending on the compiler used.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
0cb9fbacbe net/ixgbe/base: allow bypassing VLAN pool filters
This patch adds support for the VLAN pool filter (VLVF) to be
bypassed when adding or removing a VLAN filter table array (VFTA) entry.
The PF can utilize the default pool while preserving the VLVF for the
VFs use.
Meanwhile, update the VF operations and drivers where corresponding
functionality is invoked.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
b978f7b38c net/ixgbe/base: simplify VLAN management
This patch simplifies the adding and removing VLANs from
VFTA/VLVF/VLVFB registers. The logic to determine the registers to use
has been simplified to (vid / 32) and (1 - vid / 32). Many conditional
paths and checks are no longer needed with this patch.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
7c9a0b715d net/ixgbe/base: limit PHY token lock to MDIO access
This patch limits getting and putting the PHY Token to PHY MDIO
access only by adding ixgbe_read_phy_reg_x550a and
ixgbe_write_phy_reg_x550a. The PHY Token is only needed to
synchronize access to the MDIO shared between the two MAC instance.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
87d2b7c5ce net/ixgbe/base: fix register access error
This patch corrects the FLA/GSCL/GSCN access offset values according
to the datasheet.

Fixes: 0790adeb56 ("ixgbe/base: support X550em_a device")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
1062ba821b net/ixgbe/base: fix race condition between ports
This patch fixes a possible race issue between ports, when issuing host
interface commands, by acquiring/releasing the management host interface
semaphore in ixgbe_host_interface_command.

Fixes: 36f43e8679 ("ixgbe/base: refactor manageability block communication")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
6e42840a4d net/ixgbe/base: add function to reset swfw semaphore
For X540 onwards it is possible if a system reset occurs at the
right time to leave the SWFW semaphore high. This new function will
attempt to grab and release the semaphore. If the grab times out it
will still release the semaphore placing it in a known good state.
The idea is to call this when you know no one should be holding the
semaphore (i.e. probe time)

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
f2a5f0b8ee net/ixgbe/base: update device IDs
There are two device IDs changed from 15C6/15C7 to 15E4/15E5 because of
PHY info changes. 15C6/15C7 IDs are now used for the backplane
SGMII versions.
Also, clean up some discovery kludges from the previous shared ID,
and also add 15C6/15C7 to ixgbe_set_mdio_speed just for paranoia
to control MDIO speed even though nothing should be attached.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
ad09635647 net/ixgbe/base: support new PHY types
This patch adds new phy definitions and support functions to enable those
new phy types.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
5e0920d93c net/ixgbe/base: refactor internal PHY mode determination
NW_MNG_IF_SEL register is a PHY link configuration register.
Add ixgbe_read_mng_if_sel_x550em to read NW_MNG_IF_SEL, validate
register values and save fields such as PHY MDIO address. This
centralises the reading and checking of the register in one place

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
d20977088c net/ixgbe/base: rename header guard
The ixgbe_vf.h file did not use _<FILENAME>_ and instead used
__<FILENAME>__ which is not the standard used in every other file.

Fixes: af75078fec ("first public release")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
4fe0982ee7 net/ixgbe/base: fix error path to release lock
When there is an error getting the PHY token, the error path
fails to release the locks that it has taken. Release those
locks in that failure case.

Fixes: 86b8fb293f ("ixgbe/base: add sw-firmware sync for resource sharing on X550em_a")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
64529722b3 net/ixgbe/base: fix macro name
This patch renames IXGBE_PVFTTDLEN to IXGBE_PVFTDLEN according to
abbreviation of Transmit Descriptor Length in datasheet.

Fixes: d2e72774e5 ("ixgbe/base: support X550")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
eb1ef7bea1 net/ixgbe/base: clear stale VMDq pool mappings
This patch adds clearing the pool mappings when configuring default
MAC addresses for the interface. Without this there will be the risk
of leaking an address into pool 0 which really belongs to VF 0 when
SR-IOV is enabled.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:53 +02:00
Beilei Xing
fc0559bdb5 net/ixgbe/base: add link MAC setup for X550a SFP+
This patch updates ixgbe_setup_mac_link_sfp_x550a for X550 SFP+.
ixgbe_set_lan_id_multi_port_pcie has been updated to set the MAC
instance(0/1) which is needed when configuring the external PHY,
since X550a has two instances of MGPK. The MAC instance is read
from the EEPROM.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:52 +02:00
Beilei Xing
eb540e47c6 net/ixgbe/base: allow per-device-type method calls
Use the method pointers instead of direct function calls for IOSF
access so that the right functions can be called on X550EM_a,
compared to other devices using the driver.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:52 +02:00
Beilei Xing
c00433544e net/ixgbe/base: add KR support for X550em_a devices
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:52 +02:00
Beilei Xing
a05454ba5f net/ixgbe/base: refactor EEE setup for X550
Break ixgbe_setup_eee_X550 down to better handle a change from if
statements to switch statements needed to add X550em_a KR support.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:52 +02:00
Beilei Xing
928d240123 net/ixgbe/base: fix firmware command checksum error
When software sends commands to firmware using the host
slave command interface, firmware fails to receive the
command due to a checksum failed error, as the checksum is
not being correctly set by the driver software.

This patch sets command checksum to the default value of
0xFF, as per the datasheet, therefore the checksum won't
be checked by firmware.

Fixes: 86b8fb293f ("ixgbe/base: add sw-firmware sync for resource sharing on X550em_a")
Fixes: 0790adeb56 ("ixgbe/base: support X550em_a device")

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
2016-06-27 16:17:52 +02:00