Commit Graph

15321 Commits

Author SHA1 Message Date
Jakub Kicinski
7533fdc0f7 nfp: bpf: add hardware bpf offload
Add hardware bpf offload on our smart NICs.  Detect if
capable firmware is loaded and use it to load the code JITed
with just added translator onto programmable engines.

This commit only supports offloading cls_bpf in legacy mode
(non-direct action).

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 19:50:03 -04:00
Jakub Kicinski
cd7df56ed3 nfp: add BPF to NFP code translator
Add translator for JITing eBPF to operations which
can be executed on NFP's programmable engines.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 19:50:02 -04:00
Nogah Frankel
8f8a62d462 mlxsw: spectrum: Implement max rif resource
Replace max rif const with using the result from resource query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:59 -04:00
Nogah Frankel
274df7fb77 mlxsw: pci: Add max router interface resource
Add the max number of rif (router interfaces) to resource query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:59 -04:00
Nogah Frankel
e44d49cbbc mlxsw: pci: Add some miscellaneous resources
Add max system ports, max regions and max vlan groups to resource query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:59 -04:00
Nogah Frankel
9497c042bf mlxsw: spectrum: Implement max virtual routers resource
Replace max virtual routers const with the result from
the resource query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:59 -04:00
Nogah Frankel
b8a09f0a09 mlxsw: pci: Add max virtual routers resource
Add the max number of virtual routers to resource query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:59 -04:00
Nogah Frankel
403547d38d mlxsw: profile: Add KVD resources to profile config
Use resources from resource query to determine values for
the profile configuration.
Add KVD determined section sizes to the resources struct.
Change the profile struct and value to match this changes.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:58 -04:00
Nogah Frankel
2acd10c51b mlxsw: pci: Add KVD size relate resources
Add KVD size, and minimum sizes for the single and double
sections resources to resources query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:58 -04:00
Nogah Frankel
ce0bd2b0c5 mlxsw: spectrum: lag resources- use resources data instead of consts
Use max lag and max ports in lag resources as the result of resource query
instead of using const to save them.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:58 -04:00
Nogah Frankel
9f7f797c1d mlxsw: pci: Add lag related resources to resources query
Add max lag and max ports in lag resources to resources query.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 01:00:58 -04:00
Or Gerlitz
4bdcc6ca21 mlxsw: spectrum: Make offloads stats functions static
The offloads stats functions are local to this file, make them static.

Fixes: fc1bbb0f18 ('mlxsw: spectrum: Implement offload stats ndo [..]')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:45:59 -04:00
Sean Wang
94d308d060 net: ethernet: mediatek: enhance with avoiding superfluous assignment inside mtk_get_ethtool_stats
data_src is unchanged inside the loop, so this patch moves
the assignment to outside the loop to avoid unnecessarily
assignment

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-21 00:06:32 -04:00
Jesper Dangaard Brouer
5737f6c926 mlx4: add missed recycle opportunity for XDP_TX on TX failure
Correct drop handling for XDP_TX on TX failure, were recently added in
commit 95357907ae ("mlx4: fix XDP_TX is acting like XDP_PASS on TX
ring full").

The change missed an opportunity for recycling the RX page, instead of
going through the page allocator, like the regular XDP_DROP action does.
This patch cease the opportunity, by going through the XDP_DROP case.

Fixes: 95357907ae ("mlx4: fix XDP_TX is acting like XDP_PASS on TX ring full")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 04:58:17 -04:00
Ido Schimmel
1a9234e66e mlxsw: spectrum: Fix sparse warnings
drivers/net/ethernet/mellanox/mlxsw//spectrum.c:251:28: warning: symbol
'mlxsw_sp_span_entry_find' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlxsw//spectrum.c:265:28: warning: symbol
'mlxsw_sp_span_entry_get' was not declared. Should it be static?
drivers/net/ethernet/mellanox/mlxsw//spectrum.c:367:56: warning: mixing
different enum types
drivers/net/ethernet/mellanox/mlxsw//spectrum.c:367:56:     int enum
mlxsw_sp_span_type  versus
drivers/net/ethernet/mellanox/mlxsw//spectrum.c:367:56:     int enum
mlxsw_reg_mpar_i_e
...
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:598:32: warning:
mixing different enum types
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:598:32:     int
enum mlxsw_reg_sbxx_dir  versus
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:598:32:     int
enum devlink_sb_pool_type
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:600:39: warning:
mixing different enum types
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:600:39:     int
enum mlxsw_reg_sbpr_mode  versus
drivers/net/ethernet/mellanox/mlxsw//spectrum_buffers.c:600:39:     int
enum devlink_sb_threshold_type
...
drivers/net/ethernet/mellanox/mlxsw//spectrum_router.c:255:54: warning:
mixing different enum types
drivers/net/ethernet/mellanox/mlxsw//spectrum_router.c:255:54:     int
enum mlxsw_sp_l3proto  versus
drivers/net/ethernet/mellanox/mlxsw//spectrum_router.c:255:54:     int
enum mlxsw_reg_ralxx_protocol
...
drivers/net/ethernet/mellanox/mlxsw//spectrum_router.c:1749:6: warning:
symbol 'mlxsw_sp_fib_entry_put' was not declared. Should it be static?

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 04:32:50 -04:00
Elad Raz
18c2d2c113 mlxsw: Change the RX LAG hash function from XOR to CRC
Change the RX hash function from XOR to CRC in order to have better
distribution of the traffic.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 04:32:50 -04:00
Rob Swindell
878786d95e bnxt_en: Fix build error for kernesl without RTC-LIB
bnxt_hwrm_fw_set_time() now returns -EOPNOTSUPP when built for kernel
without RTC_LIB.  Setting the firmware time is not critical to the
successful completion of the firmware update process.

Signed-off-by: Rob Swindell <Rob.Swindell@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-20 03:53:49 -04:00
Baoyou Xie
766a0e978f net/mlx5: clean function declarations in eswitch.c up
We get 2 warnings when building kernel with W=1:
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c:463:5: warning: no previous prototype for 'esw_offloads_init' [-Wmissing-prototypes]
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c:521:6: warning: no previous prototype for 'esw_offloads_cleanup' [-Wmissing-prototypes]

In fact, both functions are declared in
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c,but should be
declared in a header file, thus can be recognized in other file.

So this patch moves the declarations into
drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:52:10 -04:00
Baoyou Xie
d766e7e6b6 be2net: mark symbols static where possible
We get 4 warnings when building kernel with W=1:
drivers/net/ethernet/emulex/benet/be_main.c:4368:6: warning: no previous prototype for 'be_calculate_pf_pool_rss_tables' [-Wmissing-prototypes]
drivers/net/ethernet/emulex/benet/be_cmds.c:4385:5: warning: no previous prototype for 'be_get_nic_pf_num_list' [-Wmissing-prototypes]
drivers/net/ethernet/emulex/benet/be_cmds.c:4537:6: warning: no previous prototype for 'be_reset_nic_desc' [-Wmissing-prototypes]
drivers/net/ethernet/emulex/benet/be_cmds.c:4910:5: warning: no previous prototype for '__be_cmd_set_logical_link_config' [-Wmissing-prototypes]

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:52:10 -04:00
Philippe Reynes
6b352ebccb net: ethernet: broadcom: bcmgenet: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:39:12 -04:00
Philippe Reynes
639cfa9e8c net: ethernet: broadcom: bcm63xx: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:39:12 -04:00
Philippe Reynes
625eb8667d net: ethernet: broadcom: bcm63xx: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:39:12 -04:00
Philippe Reynes
2406e5d4c4 net: ethernet: broadcom: b44: use new api ethtool_{get|set}_link_ksettings
The ethtool api {get|set}_settings is deprecated.
We move this driver to new api {get|set}_link_ksettings.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:39:12 -04:00
Philippe Reynes
51f141bec1 net: ethernet: broadcom: b44: use phydev from struct net_device
The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:39:11 -04:00
Eddie Wai
350a714960 bnxt_en: Fixed the VF link status after a link state change
The VF link state can be changed via the 'ip link set' cmd.
Currently, the new link state does not take effect immediately.

The fix is for the PF to send a link change async event to the
designated VF after a VF link state change.  This async event will
trigger the VF to update the link status.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Deepak Khungar
ae8e98a6fa bnxt_en: Support for "ethtool -r" command
Restart autoneg if autoneg is enabled.

Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Michael Chan
4ffcd58230 bnxt_en: Pad TX packets below 52 bytes.
The hardware has a limitation that it won't pass host to BMC loopback
packets below 52-bytes.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Michael Chan
001154eb24 bnxt_en: Call firmware to approve the random VF MAC address.
After generating the random MAC address for VF, call the firmware to
approve it.  This step serves 2 purposes.  Some hypervisor (e.g. ESX)
wants to approve the MAC address.  2nd, the call will setup the
proper forwarding database in the internal switch.

We need to unlock the hwrm_cmd_lock mutex before calling bnxt_approve_mac().
We can do that because we are at the end of the function and all the
previous firmware response data has been copied.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Michael Chan
7cc5a20e38 bnxt_en: Re-arrange bnxt_hwrm_func_qcaps().
Re-arrange the code so that the generation of the random MAC address for
the VF is at the end of the function.  The next patch will add one more step
to call bnxt_approve_mac() to get the firmware to approve the random MAC
address.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Michael Chan
47f8e8b9bb bnxt_en: Fix ethtool -l|-L inconsistent channel counts.
The existing code is inconsistent in reporting and accepting the combined
channel count.  bnxt_get_channels() reports maximum combined as the
maximum rx count.  bnxt_set_channels() accepts combined count that
cannot be bigger than max rx or max tx.

For example, if max rx = 2 and max tx = 1, we report max supported
combined to be 2.  But if the user tries to set combined to 2, it will
fail because 2 is bigger than max tx which is 1.

Fix the code to be consistent.  Max allowed combined = max(max_rx, max_tx).
We will accept a combined channel count <= max(max_rx, max_tx).

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:25 -04:00
Rob Swindell
5ac67d8bc7 bnxt_en: Added support for Secure Firmware Update
Using Ethtool flashdev command, entire NVM package (*.pkg) files
may now be staged into the "update" area of the NVM and subsequently
verified and installed by the firmware using the newly introduced
command: NVM_INSTALL_UPDATE.

We also introduce use of the new firmware command FW_SET_TIME so that the
NVM-resident package installation log contains valid time-stamps.

Signed-off-by: Rob Swindell <Rob.Swindell@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:24 -04:00
Michael Chan
441cabbbf1 bnxt_en: Update to firmware interface spec 1.5.1.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:24 -04:00
Michael Chan
adbc830545 bnxt_en: Simplify PCI device names and add additinal PCI IDs.
Remove "Single-port/Dual-port" from the device names.  Dual-port devices
will appear as 2 separate devices, so no need to call each a dual-port
device.  Use a more generic name for VF devices belonging to the same
chip fanmily.  Add some remaining NPAR device IDs.

Signed-off-by: David Christensen <david.christensen@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:24 -04:00
Michael Chan
8d6be8b627 bnxt_en: Use RSS flags defined in the bnxt_hsi.h file.
And remove redundant definitions of the same flags.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 21:32:24 -04:00
Wei Yongjun
106323b905 cxgb4: Fix return value check in cfg_queues_uld()
Fix the retrn value check which testing the wrong variable
in cfg_queues_uld().

Fixes: 94cdb8bb99 ("cxgb4: Add support for dynamic allocation of
resources for ULD")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 01:42:28 -04:00
Nelson Chang
7aab747e55 net: ethernet: mediatek: add ethtool functions to configure RX flows of HW LRO
The codes add ethtool functions to set RX flows for HW LRO. Because the
HW LRO hardware can only recognize the destination IP of TCP/IP RX flows,
the ethtool command to add HW LRO flow is as below:
ethtool -N [devname] flow-type tcp4 dst-ip [ip_addr] loc [0~1]

Otherwise, cause the hardware can set total four destination IPs, each
GMAC (GMAC1/GMAC2) can set two IPs separately at most.

Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 01:40:47 -04:00
Nelson Chang
ee40681037 net: ethernet: mediatek: add HW LRO functions of PDMA RX rings
The codes add the large receive offload (LRO) functions by hardware as below:
1) PDMA has total four RX rings that one is the normal ring, and others can
   be configured as LRO rings.
2) Only TCP/IP RX flows can be offloaded. The hardware can set four IP
   addresses at most, if the destination IP of the RX flow matches one of
   them, it has the chance to be offloaded.
3) There three RX flows can be offloaded at most, and one flow is mapped to
   one RX ring.
4) If there are more than three candidate RX flows, the hardware can
   choose three of them by throughput comparison results.

Signed-off-by: Nelson Chang <nelson.chang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 01:40:47 -04:00
Hariprasad Shenai
0fbc81b3ad chcr/cxgb4i/cxgbit/RDMA/cxgb4: Allocate resources dynamically for all cxgb4 ULD's
Allocate resources dynamically to cxgb4's Upper layer driver's(ULD) like
cxgbit, iw_cxgb4 and cxgb4i. Allocate resources when they register with
cxgb4 driver and free them while unregistering. All the queues and the
interrupts for them will be allocated during ULD probe only and freed
during remove.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 01:37:32 -04:00
Jesper Dangaard Brouer
95357907ae mlx4: fix XDP_TX is acting like XDP_PASS on TX ring full
The XDP_TX action can fail transmitting the frame in case the TX ring
is full or port is down.  In case of TX failure it should drop the
frame, and not as now call 'break' which is the same as XDP_PASS.

Fixes: 9ecc2d8617 ("net/mlx4_en: add xdp forwarding and data write support")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Brenden Blanco <bblanco@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-19 01:32:19 -04:00
Nogah Frankel
fc1bbb0f18 mlxsw: spectrum: Implement offload stats ndo and expose HW stats by default
Change the default statistics ndo to return HW statistics
(like the one returned by ethtool_ops).
The HW stats are collected to a cache by delayed work every 1 sec.
Implement the offload stat ndo.
Add a function to get SW statistics, to be called from this function.

Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-18 22:33:42 -04:00
Colin Ian King
22da734925 net: r6040: add in missing white space in error message text
A couple of dev_err messages span two lines and the literal
string is missing a white space between words. Add the white
space and join the two lines into one.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: FLorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-18 22:22:16 -04:00
Julia Lawall
373075049c dwc_eth_qos: constify net_device_ops structures
Check for net_device_ops structures that are only stored in the netdev_ops
field of a net_device structure.  This field is declared const, so
net_device_ops structures that have this property can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct net_device_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device e;
position p;
@@
e.netdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct net_device_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct net_device_ops i = { ... };
// </smpl>

The result of size on this file before the change is:
   text	      data     bss     dec         hex	  filename
  21623       1316      40   22979        59c3
   drivers/net/ethernet/synopsys/dwc_eth_qos.o

and after the change it is:
   text	     data        bss	    dec	    hex	filename
  22199       724         40      22963    59b3
   drivers/net/ethernet/synopsys/dwc_eth_qos.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 10:07:23 -04:00
Julia Lawall
66f58ec486 hisilicon: constify net_device_ops structures
Check for net_device_ops structures that are only stored in the netdev_ops
field of a net_device structure.  This field is declared const, so
net_device_ops structures that have this property can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct net_device_ops i@p = { ... };

@ok@
identifier r.i;
struct net_device e;
position p;
@@
e.netdev_ops = &i@p;

@bad@
position p != {r.p,ok.p};
identifier r.i;
struct net_device_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct net_device_ops i = { ... };
// </smpl>

The result of size on this file before the change is:

   text	      data     bss     dec         hex	  filename
   7995	       848       8    8851        2293
   drivers/net/ethernet/hisilicon/hip04_eth.o

and after the change it is:

   text	     data        bss	    dec	    hex	filename
   8571	      256          8       8835    2283
   drivers/net/ethernet/hisilicon/hip04_eth.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 10:07:23 -04:00
Tariq Toukan
4415a0319f net/mlx5e: Implement RX mapped page cache for page recycle
Instead of reallocating and mapping pages for RX data-path,
recycle already used pages in a per ring cache.

Performance tests:
The following results were measured on a freshly booted system,
giving optimal baseline performance, as high-order pages are yet to
be fragmented and depleted.

We ran pktgen single-stream benchmarks, with iptables-raw-drop:

Single stride, 64 bytes:
* 4,739,057 - baseline
* 4,749,550 - order0 no cache
* 4,786,899 - order0 with cache
1% gain

Larger packets, no page cross, 1024 bytes:
* 3,982,361 - baseline
* 3,845,682 - order0 no cache
* 4,127,852 - order0 with cache
3.7% gain

Larger packets, every 3rd packet crosses a page, 1500 bytes:
* 3,731,189 - baseline
* 3,579,414 - order0 no cache
* 3,931,708 - order0 with cache
5.4% gain

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 09:51:40 -04:00
Tariq Toukan
a5a0c59016 net/mlx5e: Introduce API for RX mapped pages
Manage the allocation and deallocation of mapped RX pages only
through dedicated API functions.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 09:51:40 -04:00
Tariq Toukan
7e42667170 net/mlx5e: Single flow order-0 pages for Striding RQ
To improve the memory consumption scheme, we omit the flow that
demands and splits high-order pages in Striding RQ, and stay
with a single Striding RQ flow that uses order-0 pages.

Moving to fragmented memory allows the use of larger MPWQEs,
which reduces the number of UMR posts and filler CQEs.

Moving to a single flow allows several optimizations that improve
performance, especially in production servers where we would
anyway fallback to order-0 allocations:
- inline functions that were called via function pointers.
- improve the UMR post process.

This patch alone is expected to give a slight performance reduction.
However, the new memory scheme gives the possibility to use a page-cache
of a fair size, that doesn't inflate the memory footprint, which will
dramatically fix the reduction and even give a performance gain.

Performance tests:
The following results were measured on a freshly booted system,
giving optimal baseline performance, as high-order pages are yet to
be fragmented and depleted.

We ran pktgen single-stream benchmarks, with iptables-raw-drop:

Single stride, 64 bytes:
* 4,739,057 - baseline
* 4,749,550 - this patch
no reduction

Larger packets, no page cross, 1024 bytes:
* 3,982,361 - baseline
* 3,845,682 - this patch
3.5% reduction

Larger packets, every 3rd packet crosses a page, 1500 bytes:
* 3,731,189 - baseline
* 3,579,414 - this patch
4% reduction

Fixes: 461017cb00 ("net/mlx5e: Support RX multi-packet WQE (Striding RQ)")
Fixes: bc77b240b3 ("net/mlx5e: Add fragmented memory support for RX multi packet WQE")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-17 09:51:40 -04:00
Wei Yongjun
1d7b47a3c7 net: emac: remove .owner field for driver
Remove .owner field if calls are used which set it automatically.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 04:25:50 -04:00
Wei Yongjun
7e5eded5c1 net: emac: remove unnecessary dev_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 04:25:50 -04:00
Sean Wang
dce6fa4219 net: ethernet: mediatek: avoid race condition during the reset process
add the protection of the race condition between
the reset process and hardware access happening
on the related callbacks.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 02:22:58 -04:00
Sean Wang
2a8307aab3 net: ethernet: mediatek: add more resets for internal ethernet circuit block
struct mtk_eth has already contained struct regmap ethsys pointer
to the address range of the internal circuit reset, so we reuse it
to reset more internal blocks on ethernet hardware such as packet
processing engine (PPE) and frame engine (FE) instead of rstc which
deals with FE only.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16 02:22:58 -04:00