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Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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It's hard to read, especially when it is:
ceph: __choose_mds 00000000b7bc9c15 is_hash=1 (-271041095) mode 0
At the same time, switch to __func__ to get rid of the checkpatch
warning.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Instead of using the copy-from operation, switch copy_file_range to the
new copy-from2 operation, which allows to send the truncate_seq and
truncate_size parameters.
If an OSD does not support the copy-from2 operation it will return
-EOPNOTSUPP. In that case, the kernel client will stop trying to do
remote object copies for this fs client and will always use the generic
VFS copy_file_range.
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Move s_ref up to plug a 4 byte hole, which plugs another.
Move r_kref to shave 8 bytes off per request on x86_64.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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gcc -O3 warns about a dummy variable that is passed
down into rbd_img_fill_nodata without being initialized:
drivers/block/rbd.c: In function 'rbd_img_fill_nodata':
drivers/block/rbd.c:2573:13: error: 'dummy' is used uninitialized in this function [-Werror=uninitialized]
fctx->iter = *fctx->pos;
Since this is a dummy, I assume the warning is harmless, but
it's better to initialize it anyway and avoid the warning.
Fixes: mmtom ("init/Kconfig: enable -O3 for all arches")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The total bytes may potentially be larger than 8.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Just in case the session's refcount reach 0 and is releasing, and
if we get the session without checking it, we may encounter kernel
crash.
Rename get_session to ceph_get_mds_session and make it global.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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It's possible to pass the mount helper a server path that has more
than one contiguous slash character. For example:
$ mount -t ceph 192.168.195.165:40176:/// /mnt/cephfs/
In the MDS server side the extra slashes of the server path will be
treated as snap dir, and then we can get the following debug logs:
ceph: mount opening path //
ceph: open_root_inode opening '//'
ceph: fill_trace 0000000059b8a3bc is_dentry 0 is_target 1
ceph: alloc_inode 00000000dc4ca00b
ceph: get_inode created new inode 00000000dc4ca00b 1.ffffffffffffffff ino 1
ceph: get_inode on 1=1.ffffffffffffffff got 00000000dc4ca00b
And then when creating any new file or directory under the mount
point, we can hit the following BUG_ON in ceph_fill_trace():
BUG_ON(ceph_snap(dir) != dvino.snap);
Have the client ignore the extra slashes in the server path when
mounting. This will also canonicalize the path, so that identical mounts
can be consilidated.
1) "//mydir1///mydir//"
2) "/mydir1/mydir"
3) "/mydir1/mydir/"
Regardless of the internal treatment of these paths, the kernel still
stores the original string including the leading '/' for presentation
to userland.
URL: https://tracker.ceph.com/issues/42771
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The m_num_mds here is actually the number for MDSs which are in
up:active status, and it will be duplicated to m_num_active_mds,
so remove it.
Add possible_max_rank to the mdsmap struct and this will be
the correctly possible largest rank boundary.
Remove the special case for one mds in __mdsmap_get_random_mds(),
because the validate mds rank may not always be 0.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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In the debug logs about the di->offset or ctx->pos it is in hex
format, but some others are using the dec format. It is a little
hard to read.
For the xattr version, it is u64 type, using a shorter type may
truncate it.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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For the caps having no any subset mask requested we shouldn't touch
them.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Currently, we could have an open-by-handle (or NFS server) call
into the filesystem and start working with an inode before it's
properly filled out.
Don't clear I_NEW until we have filled out the inode, and discard it
properly if that fails. Note that we occasionally take an extra
reference to the inode to ensure that we don't put the last reference in
discard_new_inode, but rather leave it for ceph_async_iput.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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If max_mds > 1 and a request is submitted that chooses a random mds
rank, and the relating session is not opened yet, the request will wait
until the session has been opened and resend again.
Every time the request goes through __do_request, it will release the
req->session first and choose a random one again, which may be a
completely different rank than the one it just waited on.
In the worst case, it will open all the mds sessions one by one just
before the request can be successfully sent out.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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If all the MDS daemons are down for some reason, then the first mount
attempt will fail with EIO after the mount request times out. A mount
attempt will also fail with EIO if all of the MDS's are laggy.
This patch changes the code to return -EHOSTUNREACH in these situations
and adds a pr_info error message to help the admin determine the cause.
URL: https://tracker.ceph.com/issues/4386
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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When reconnecting the session but if it is denied by the MDS due
to client was in blacklist or something else, kclient will receive
a session close reply, and we will never see the important log:
"ceph: mds%d reconnect denied"
And with the confusing log:
"ceph: handle_session mds0 close 0000000085804730 state ??? seq 0"
Let's keep the session state until its memories is released.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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If the caller passes in a NULL cap_reservation, and we can't allocate
one then ensure that we fail gracefully.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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During umount, if there has no any unsafe request in the mdsc and
some requests still in-flight and not got reply yet, and if the
rest requets are all safe ones, after that even all of them in mdsc
are unregistered, the umount must wait until after mount_timeout
seconds anyway.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Even the MDS is in up:active state, but it also maybe laggy. Here
will skip the laggy MDSs.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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In case the max_mds > 1 in MDS cluster and there is no any standby
MDS and all the max_mds MDSs are in up:active state, if one of the
up:active MDSs is dead, the m->m_num_laggy in kclient will be 1.
Then the mount will fail without considering other healthy MDSs.
There manybe some MDSs still "in" the cluster but not in up:active
state, we will ignore them. Only when all the up:active MDSs in
the cluster are laggy will treat the cluster as not be available.
In case decreasing the max_mds, the cluster will not stop the extra
up:active MDSs immediately and there will be a latency. During it
the up:active MDS number will be larger than the max_mds, so later
the m_info memories will 100% be reallocated.
Here will pick out the up:active MDSs as the m_num_mds and allocate
the needed memories once.
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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ceph_pagelist_encode_string() will not fail in reserved case,
also, we do not check err code here, so remove unnecessary
assignment.
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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We print session's refcount in debug message inside
ceph_put_mds_session() and get_session(), so we don't have to
print it in con_get()/__ceph_lookup_mds_session()/con_put().
Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Manpage of cpupower is listing wrong sub-commands in "See Also"
section. The option for cpupower-idle(1) should actually be
cpupower-idle-info(1) and cpupower-idle-set(1). This patch corrects
this anomaly.
Signed-off-by: Brahadambal Srinivasan <latha@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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- voltage support for newer Logitech HID++ devices, from Pedro Vanzella.
- MX Master support improvements, from Adrian Freund and Mazin Rezk
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- support for uniq ioctl()
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With the STM32 thermal peripheral, it is not possible to dump the
temperature that has caused the interrupt.
When the temperature reaches the low threshold, we generally read
a temperature that is a little bit higher than the low threshold.
This maybe due to sampling precision, and also because the CPU becomes
hotter when it quits WFI mode.
In that case, the framework does not change the trip points. This leads
to a lot of low threshold interrupts.
The fix is to set the low threshold value 0.5 degrees Celsius
below the actual request.
The problem is not so frequent with the high threshold and it would
no be a good idea to set the threshold value higher than the request.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-7-p.paillet@st.com
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Change the way of computing to avoid rounds by 1 or 2 degrees.
Also simplify the sampling time management that is hard-coded
to maximum value during probe.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-6-p.paillet@st.com
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Let the thermal framework handle the trip points instead
of custom code inside the driver. This is backward compatible,
simplifies the driver and offers the possibility to the user
to set any trip point he needs.
stm_thermal_set_trips callback that is registered to
set_trips ops to handle the low and high thresholds and replaces
stm_thermal_set_threshold and stm_thermal_update_threshold functions.
modify irq enable to handle the thresholds.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-5-p.paillet@st.com
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In case of CPU reset, the interrupts could be enabled at boot time.
Disable interrupts and clear flags.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-4-p.paillet@st.com
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Be sure get_temp returns an error while disabling or enabling the device.
Set THERMAL_DEVICE_ENABLED state at the end of power on function.
Set THERMAL_DEVICE_DISABLED state at the beginning of power off function.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-3-p.paillet@st.com
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Fix a mistake with the ICIFR register name.
Signed-off-by: Pascal Paillet <p.paillet@st.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200110101605.24984-2-p.paillet@st.com
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OF node is missing
When devm_thermal_zone_of_sensor_register() is called from
hwmon_thermal_add_sensor() it is possible that the relevant sensor is
missing an OF node. In this case thermal_zone_of_sensor_register() returns
-EINVAL which causes hwmon_thermal_add_sensor() to fail as well. This patch
changes relevant return code of thermal_zone_of_sensor_register() to
-ENODEV, which is tolerated by hwmon_thermal_add_sensor().
Here is a particular case of such behaviour: the Marvell ethernet PHYs
driver registers hwmon device for the built-in temperature sensor (see
drivers/net/phy/marvell.c). Since the sensor doesn't have associated OF
node devm_hwmon_device_register() returns error which ultimately causes
failure of the PHY driver's probe function.
Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20190827143952.19591-1-pmamonov@gmail.com
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Michal Kalderon says:
====================
qed*: Utilize FW 8.42.2.0
This FW contains several fixes and features, main ones listed below.
We have taken into consideration past comments on previous FW versions
that were uploaded and tried to separate this one to smaller patches to
ease review.
- RoCE
- SRIOV support
- Fixes in following flows:
- latency optimization flow for inline WQEs
- iwarp OOO packed DDPs flow
- tx-dif workaround calculations flow
- XRC-SRQ exceed cache num
- iSCSI
- Fixes:
- iSCSI TCP out-of-order handling.
- iscsi retransmit flow
- Fcoe
- Fixes:
- upload + cleanup flows
- Debug
- Better handling of extracting data during traffic
- ILT Dump -> dumping host memory used by chip
- MDUMP -> collect debug data on system crash and extract after
reboot
Patches prefixed with FW 8.42.2.0 are required to work with binary
8.42.2.0 FW where as the rest are FW related but do not require the
binary.
Changes from V2
---------------
- Move FW version to the start of the series to maintain minimal compatibility
- Fix some kbuild errors:
- frame size larger than 1024 (Queue Manager patch - remove redundant
field from struct)
- sparse warning on endianity (Dmae patch fix - wrong use of __le32 for field
used only on host, should be u32)
- static should be used for some functions (Debug feature ilt and mdump)
Reported-by: kbuild test robot <lkp@intel.com>
Changes from V1
---------------
- Remove epoch + kernel version from device debug dump
- don't bump driver version
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add to debug dump more information on the platform it was collected
from (pci func, path id).
Provide human readable reg fifo erros.
Removed static debug arrays from HSI Functions, and move them to
the hwfn.
Some structures were slightly changed (removing reserved chip id
for example) which lead to many long initializations being modified
with one parameter less during initialization. This leads to
some long diffs that don't really change anything.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The QM phase init tool can be invoked multiple times during
the driver lifetime. Part of the init comes from the runtime array.
The logic for setting the values did not init all values, basically
assuming the runtime array was all zeroes. But if it was invoked
multiple times, nobody was zeroing it after the first time.
In this change we zero the runtime array right after using it.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Part of the FW drop includes new debug capabilities implemented in the
qed_debug file. This patch dumps additional information during ethtool -d
for better debugging. The data dumped is the ilt (internal logical table)
and information gathered by the management firmware incase there was a
crash and driver was not able to extract the information (mdump).
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This feature enables the FW to page out FW code when required
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch contains several HSI changes. The changes are part of
features like RDMA VF and OVS, the patch also contains a fix to
how the init code determines if the dmae is ready to be used.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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- Remove struct iscsi_slow_path_hdr and field fw_cid from several structs
- Remove struct iscsi_spe_func_dstry
- Remove fields pbe_page_size_log and pbl_page_size_log from struct
iscsi_conn_offload_param
Signed-off-by: Manish Rangankar <manish.rangankar@marvell.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@marvell.com>
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The number of BTB blocks was modified to be different between the two chip
flavors supported (BB/K2) as a result, this lead to a re-write of selecting
the default hsi value based on the chip.
This patch creates a lookup table for hsi values per chip rather than
ask again and again for every value.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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LL2 queues were a limited resource due to FW constraints.
This FW introduced a new resource which is a context based ll2 queue
(memory on host). The additional ll2 queues are required for RDMA SRIOV.
The code refers to the previous ll2 queues as ram-based or legacy, and the
new queues as ctx-based.
This change decreased the "legacy" ram-based queues therefore the first ll2
queue used for iWARP was converted to the ctx-based ll2 queue.
This feature also exposed a bug in the DIRECT_REG_WR64 macro implementation
which didn't have an effect in other use cases.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are several wide-bus registers written to by the fw_funcs
that require using the dmae for atomicity. Therefore using the dmae
channel functionality was added to the fw_funcs file, since the code
is very similar to the previously used code, the structures used were
moved to qed_hsi. Due to FW conventions, the names of the flags in the
struct changed. Since this required slight modification in the places
that set the flags the code was modified to use GET/SET FIELD macros.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert storm ram line to regpair rather than two distinct u32
to better represent the u64 width of the ram.
Convert some defines to be hex instead of negative values
these values also changed by FW from previous value.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch contains changes in initialization and usage of the QM blocks.
Instead of setting a rate limiter per vport the rate limiters are now a
global resource and set independentaly.
The patch also contains a field name change:
vport_wfq which is part of vport_params was renamed to wfq as the vport
prefix is redundant.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch contains register initialization related changes.
- Modifications to the runtime offsets - these are defines used
by the driver or firmware functions to set values that are used
by the initialization functions to set device register values.
- Global window values changes to provide different device register
ranges.
- Additional device registers addresses were added to the register file,
used in later stages.
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IRO stands for internal RAM offsets. Updating the FW binary produces
different iro offsets. This file contains the different values,
and a new representation of the values.
Update the FW version
Signed-off-by: Ariel Elior <ariel.elior@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sunil Goutham says:
====================
octeontx2-pf: Add network driver for physical function
OcteonTX2 SOC's resource virtualization unit (RVU) supports
multiple physical and virtual functions. Each of the PF's
functionality is determined by what kind of resources are attached
to it. If NPA and NIX blocks are attached to a PF it can function
as a highly capable network device.
This patch series add a network driver for the PF. Initial set of
patches adds mailbox communication with admin function (RVU AF)
and configuration of queues. Followed by Rx and tx pkts NAPI
handler and then support for HW offloads like RSS, TSO, Rxhash etc.
Ethtool support to extract stats, config RSS, queue sizes, queue
count is also added.
Added documentation to give a high level overview of HW and
different drivers which will be upstreamed and how they interact.
Changes from v5:
* Fixed otx2_atomic64_add() non ARM64 fallback definition.
- Suggested by David Miller
Changes from v4:
* Replaced pci_set_dma_mask and pci_set_consistent_dma_mask
fn()s with dma_set_mask_and_coherent().
* Some additonal code cleanup.
* Fixed receive buffer segmnetation logic in otx2_alloc_rbuf()
* Removed all unused BIG_ENDIAN structure definitions.
* Removed unnecessary memory barriers
- Sugested by Jakub Kicinski
* Fixed mailbox initalization failure handling
* Removed unused function parameter in otx2_skb_add_frag()
- Suggested by Maciej Fijalkowski
Changes from v3:
* Fixed receive side scaling reinitialization during interface
DOWN and UP to retain user configured settings, if any.
* Removed driver version from ethtool.
* Fixed otx2_set_rss_hash_opts() to return error incase RSS is
not enabled.
- Sugested by Jakub Kicinski
Changes from v2:
* Removed frames, bytes, dropped packet stats from ethtool to avoid
duplication of same stats in netlink and ethtool.
- Sugested by Jakub Kicinski
* Removed number of channels and ringparam upper bound checking
in ethtool support.
* Fixed RSS hash option setting to reject unsupported config.
- Suggested by Michal Kubecek
Changes from v1:
* Made driver dependent on 64bit, to fix build errors related to
non availability of writeq/readq APIs for 32bit platforms.
- Reported by kbuild test robot
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Added maintainers entry for Marvell OcteonTX2 SOC's physical
function NIC driver.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Added high level overview of OcteonTx2 RVU HW and functionality of
various drivers which will be upstreamed.
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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