- 19 Nov, 2020 12 commits
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Julian Wiedmann authored
Improve the initial link info with data obtained from QUERY OAT. Doing so _only_ at initialization time avoids 1. dealing with multi-part replies, and 2. sifting through all the data that may get returned at runtime. This allows us to determine the correct port type for the 1000BT variant of recent OSA adapter generations (where the .card_type field in QUERY CARD INFO is no longer sufficient). Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Julian Wiedmann authored
Remove the default case for PORT_* and SPEED_* in our ethtool code. The only time these could be hit is if qeth_init_link_info() was unable to determine the port type from an OSA adapter's link_type. We already throw a message in this case, so reduce the noise and don't report bad data (ie. it's much more likely that any future link_type will represent a PORT_FIBRE link ...). Signed-off-by:
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Julian Wiedmann authored
Hard-code the minimal link info at initialization time, after we obtained the link_type. qeth_get_link_ksettings() can still override this with more accurate data from QUERY CARD INFO later on. Don't set arbitrary defaults for unknown OSA link types, they certainly won't match any future type. Signed-off-by:
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Julian Wiedmann authored
Move all the HW reply data parsing into qeth_query_card_info_cb(), and use common ethtool enums for transporting the information back to the caller. Also only look at the .port_speed field when we couldn't determine the speed from the .card_type field, and introduce some 'default' cases for SPEED_UNKNOWN, PORT_OTHER and DUPLEX_UNKNOWN. Signed-off-by:
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Julian Wiedmann authored
By the time that our .get_link_ksettings() code issues a QUERY CARD INFO cmd to get link-related information, we already set up a good amount of static link data. Return this data when the cmd fails, same as when the cmd is not supported. Signed-off-by:
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Kaixu Xia authored
Fix the following coccinelle report: ./drivers/s390/net/qeth_l3_main.c:107:2-4: WARNING: possible condition with no effect (if == else) Both branches are the same since commit ab29c480 ("s390/qeth: replace deprecated simple_stroul()"), so remove them. Reported-by:
Tosk Robot <tencent_os_robot@tencent.com> Signed-off-by:
Kaixu Xia <kaixuxia@tencent.com> [jwi: point to the commit that introduced this] Signed-off-by:
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Julian Wiedmann authored
call_switchdev_notifiers() doesn't require holding the RTNL lock since commit ff5cf100 ("net: switchdev: Change notifier chain to be atomic"). We still need it for the "lost event" slow path, to avoid racing against a concurrent .ndo_bridge_setlink(). Signed-off-by:
Alexandra Winter <wintera@linux.ibm.com> Signed-off-by:
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Heiner Kallweit authored
In rtl_tx() the released descriptors are zero'ed by rtl8169_unmap_tx_skb(). And in the beginning of rtl8169_start_xmit() we check that enough descriptors are free, therefore there's no way the DescOwn bit can be set here. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/6965d665-6c50-90c5-70e6-0bb335d4ea47@gmail.comSigned-off-by:
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Heiner Kallweit authored
Struct br_vlan_stats duplicates pcpu_sw_netstats (apart from br_vlan_stats not defining an alignment requirement), therefore switch to using the latter one. Signed-off-by:
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Jakub Kicinski authored
Sebastian Andrzej Siewior says: ==================== atm: Replace in_interrupt usage this mini series contains the removal of in_interrupt() in drivers/atm ==================== Link: https://lore.kernel.org/r/20201116162117.387191-1-bigeasy@linutronix.deSigned-off-by:
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Sebastian Andrzej Siewior authored
lanai_shutdown_tx_vci() uses in_interrupt() to issue a warning message if the function was used in context in which it is not safe to sleep. The usage of in_interrupt() in driver code is deprecated as it can not always detect all states where it is not allowed to sleep. msleep() has debug code which will trigger a warning if used in bad context. Remove in_interrupt(). Cc: Chas Williams <3chas3@gmail.com> Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Sebastian Andrzej Siewior authored
push_scqe() uses in_interrupt() to figure out if it is allowed to sleep. The usage of in_interrupt() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be separated or the context be conveyed in an argument passed by the caller, which usually knows the context. Aside of that in_interrupt() is not correct as it does not catch preempt disabled regions which neither can sleep. ns_send() (the only caller of push_scqe()) has the following callers: - vcc_sendmsg() used as proto_ops::sendmsg is expected to be invoked in preemtible context. -> vcc->dev->ops->send() (ns_send()) - atm_vcc::send via atmdev_ops::send either directly (pointer copied by atm_init_aal34() or atm_init_aal5()) or via atm_send_aal0(). This is invoked by drivers (like br2684, clip, pppoatm, ...) which are called from net_device_ops::ndo_start_xmit with BH disabled. Add atmdev_ops::send_bh which is used by callers from BH context (atm_send_aal*()) and if this callback missing then ::send is used instead. Implement this callback in nicstar and use it to replace in_interrupt(). Cc: Chas Williams <3chas3@gmail.com> Signed-off-by:
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- 18 Nov, 2020 25 commits
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Jakub Kicinski authored
Alex Elder says: ==================== net: ipa: IPA register cleanup This series consists of cleanup patches, almost entirely related to the definitions for IPA registers. Some comments are updated or added to provide better information about defined IPA registers. Other cleanups ensure symbol names and their assigned values are defined consistently. Some essentially duplicate definitions get consolidated for simplicity. In a few cases some minor bugs (missing definitions) are fixed. With these changes, all IPA register offsets and associated field masks should be correct for IPA versions 3.5.1, 4.0, 4.1, and 4.2. ==================== Link: https://lore.kernel.org/r/20201116233805.13775-1-elder@linaro.orgSigned-off-by:
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Alex Elder authored
Some last cleanups for the existing IPA register definitions: - Remove the definition of IPA_REG_ENABLED_PIPES_OFFSET, because it is not used. - Use "IPA_" instead of "BAM_" as the prefix on fields associated with the FLAVOR_0 register. We use GSI (not BAM), but the fields apply to both GSI and BAM. - Get rid of the definition of IPA_CS_RSVD; it is never used. - Add two missing field mask definitions for the INIT_DEAGGR endpoint register. - Eliminate a few of the defined sequencer types, because they are unused. We can add them back when needed. - Add a field mask to indicate which bit causes an interrupt on the microcontroller. Signed-off-by:Alex Elder <elder@linaro.org> Signed-off-by:
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Alex Elder authored
Move the definition of the ipa_irq_id enumerated type out of "ipa_interrupt.h" and into "ipa_reg.h", and flesh out its set of defined values. Each interrupt id indicates a particular type of IPA interrupt that can be signaled. Their numeric values define bit positions in the IPA_IRQ_* registers, so should their definitions should accompany the definition of those register offsets. Signed-off-by:
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Alex Elder authored
Move a few things around in "ipa_reg.h": - Move the definition of ipa_reg_state_aggr_active_offset() down a bit in the file so definitions are ordered by offset (for the lowest supported IPA version) like all other definitions. - Move the definition TIMER_FREQUENCY to be immediately above the definition of ipa_aggr_granularity_val() where it's used. - Move each register field value enumerated type definition to immediately follow the definitions of the register and field it is associated with. No code functionality is modified by this patch. Signed-off-by: -
Alex Elder authored
Revise or add comments in "ipa_reg.h" for to provide more information, and to improve clarity and consistency. - Always provide a comment to define when a register or field is supported (or not) for certain versions of IPA hardware. - Try to be specific about *which* or *how many* definitions a comment refers to. - Move comments stating that ipa->available defines the valid bits in various registers *above* the register offset definition, to avoid some checkpatch.pl warnings. No code is changed by this patch. Signed-off-by: -
Alex Elder authored
Consistently define numeric values for enumerated type members using hexidecimal (rather than decimal) format values. Align the values assigned in the same column in each file. Only assign values where they really matter, for example don't assign IPA_ENDPOINT_AP_MODEM_TX the value 0. Signed-off-by:
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Alex Elder authored
The backward compatibility register field masks are defined using single-bit masks defined with BIT(x) rather than GENMASK(x, x). Change this one set of definitions to follow the GENMASK() pattern used everywhere else. Add a few missing field definitions for this register as well. Signed-off-by:
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Alex Elder authored
Several IPA register field masks are defined without the "_FMASK" suffix naming convention. Rename these, so all field masks are consistently named. Signed-off-by:
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Alex Elder authored
Rename two suspend IRQ registers so they follow the IPA_REG_IRQ_xxx naming convention used elsewhere. Signed-off-by:
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Alex Elder authored
IPA version 3.5.1 represents the timer used in avoiding head-of-line blocking with a simple tick count. IPA v4.2 changes that, instead splitting the timer field into two parts (base and scale) to represent the ticks in the timer period. IPA v4.0 and IPA v4.1 use the same method as IPA v3.5.1. Change the test in ipa_reg_init_hol_block_timer_val() so the result is correct for those versions as well. Signed-off-by:
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Alex Elder authored
For IPA v3.5.1, the IPA filter/routing hash enable register actually does exist, but it is at offset 0x8c into the IPA register space. For newer versions of IPA it is at offset 0x148. Define a new inline function ipa_reg_filt_rout_hash_en_offset() to return the appropriate value for a given version of IPA hardware. Signed-off-by:
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Alex Elder authored
The IPA filter/routing hash enable register and filter/routing hash flush register each have four single-bit fields representing the four hashed tables to be enabled or flushed. The field positions are identical, so just use a single set of field masks to represent the fields for both registers. Signed-off-by:
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Xie He authored
commit f7365919 ("net: wan: Delete the DLCI / SDLA drivers") deleted "Documentation/networking/framerelay.rst". However, it is still referenced in "Documentation/networking/index.rst". We need to remove the reference, too. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
Xie He <xie.he.0141@gmail.com> Link: https://lore.kernel.org/r/20201118124226.15588-1-xie.he.0141@gmail.comSigned-off-by:
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Jakub Kicinski authored
Ido Schimmel says: ==================== mlxsw: Preparations for nexthop objects support - part 2/2 This patch set contains the second round of preparations towards nexthop objects support in mlxsw. Follow up patches can be found here [1]. The patches are mostly small and trivial and contain non-functional changes aimed at making it easier to integrate nexthop objects with mlxsw. Patch #1 is a fix for an issue introduced in previous submission. Found by Coverity. [1] https://github.com/idosch/linux/tree/submit/nexthop_objects ==================== Link: https://lore.kernel.org/r/20201117174704.291990-1-idosch@idosch.orgSigned-off-by:
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Ido Schimmel authored
The function is responsible for allocating the adjacency entries used by the nexthop group and populating them with the adjacency information such as egress RIF and MAC address. Allow the function to return an error when it encounters a problem and have the relevant call sites check it. Signed-off-by:
Ido Schimmel <idosch@nvidia.com> Reviewed-by:
Jiri Pirko <jiri@nvidia.com> Signed-off-by:
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Ido Schimmel authored
Currently, a nexthop group is destroyed when the last FIB entry is detached from it. When nexthop objects are supported, this can no longer be the case, as the group is a separate object whose lifetime is managed by user space. Add an indication if a nexthop group can be destroyed and always set it to true for the existing IPv4 and IPv6 nexthop groups. Signed-off-by:
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Ido Schimmel authored
When the IPv6 FIB info has a nexthop object, the nexthop offload indication is set on the nexthop object and not on the FIB info itself. Therefore, do not try to clear the offload indication from the FIB info when it has a nexthop object. Signed-off-by:
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Ido Schimmel authored
Attach the FIB entry to the nexthop group after setting the offload flag on the IPv6 FIB info (i.e., 'struct fib6_info'). The second operation is not needed when the nexthop group is a nexthop object. This will allow us to have a common exit path from the function, regardless of the nexthop group's type. Signed-off-by:
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Ido Schimmel authored
The previous patch associated a nexthop group with the FIB entry before the entry's type is determined. Make use of the nexthop group when determining the entry's type instead of relying on helpers that assume that the nexthop info is not a nexthop object (i.e., 'struct nexthop'). Signed-off-by:
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Ido Schimmel authored
Each FIB entry has a type (e.g., remote, local) that determines how the entry is programmed to the device. In order to determine if the entry is local (directly connected) or remote (has a gateway) the relevant FIB info structures (e.g., 'struct fib_info') are checked. When entries that use nexthop objects are supported, these checks will need to be changed to take into account 'struct nexthop'. Instead, first associate the entry with a nexthop group so that the next patch could determine the entry's type based on the associated nexthop group's type. Signed-off-by:
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Ido Schimmel authored
The sole caller of the function will soon only have the ifindex available, instead of the pointer itself. Therefore, change the function to take the ifindex as input and have it get the pointer. Signed-off-by:
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Ido Schimmel authored
The ifindex of the nexthop device was never set for IPv4 nexthops, unlike IPv6 nexthops. This went unnoticed since only IPv6 nexthops use it. Set the ifindex for IPv4 nexthops in order to be consistent with IPv6 and also because it will be used by a later patch. Signed-off-by:
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Ido Schimmel authored
The function allocates 'nhgi', not 'nh_grp', so it needs to free the former in its error path. Fixes: 7f7a417e ("mlxsw: spectrum_router: Split nexthop group configuration to a different struct") Addresses-Coverity: ("Memory - corruptions (USE_AFTER_FREE)") Reviewed-by:
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Ahmad Fatoum authored
It's arguable most people interested in configuring a PPS signal want it as external output, not as kernel input. PTP_CLK_REQ_PPS is for input though. Add documentation to nudge readers into the correct direction. Signed-off-by:
Ahmad Fatoum <a.fatoum@pengutronix.de> Acked-by:
Richard Cochran <richardcochran@gmail.com> Link: https://lore.kernel.org/r/20201117213826.18235-1-a.fatoum@pengutronix.deSigned-off-by:
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Gustavo A. R. Silva authored
Fix the following unreachable code issue: drivers/net/ethernet/netronome/nfp/crypto/tls.c: In function 'nfp_net_tls_add': include/linux/compiler_attributes.h:208:41: warning: statement will never be executed [-Wswitch-unreachable] 208 | # define fallthrough __attribute__((__fallthrough__)) | ^~~~~~~~~~~~~ drivers/net/ethernet/netronome/nfp/crypto/tls.c:299:3: note: in expansion of macro 'fallthrough' 299 | fallthrough; | ^~~~~~~~~~~ Reported-by:kernel test robot <lkp@intel.com> Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by:
Simon Horman <simon.horman@netronome.com> Link: https://lore.kernel.org/r/20201117171347.GA27231@embeddedorSigned-off-by:
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- 17 Nov, 2020 3 commits
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Jakub Kicinski authored
Mauro Carvalho Chehab says: ==================== Fix several bad kernel-doc markups Kernel-doc has always be limited to a probably bad documented rule: The kernel-doc markups should appear *imediatelly before* the function or data structure that it documents. On other words, if a C file would contain something like this: /** * foo - function foo * @args: foo args */ static inline void bar(int args); /** * bar - function bar * @args: foo args */ static inline void foo(void *args); The output (in ReST format) will be: .. c:function:: void bar (int args) function foo **Parameters** ``int args`` foo args .. c:function:: void foo (void *args) function bar **Parameters** ``void *args`` foo args Which is clearly a wrong result. Before this changeset, not even a warning is produced on such cases. As placing such markups just before the documented data is a common practice, on most cases this is fine. However, as patches touch things, identifiers may be renamed, and people may forget to update the kernel-doc markups to follow such changes. This has been happening for quite a while, as there are lots of files with kernel-doc problems. This series address those issues and add a file at the end that will enforce that the identifier will match the kernel-doc markup, avoiding this problem from keep happening as time goes by. ==================== Link: https://lore.kernel.org/r/cover.1605521731.git.mchehab+huawei@kernel.orgSigned-off-by:
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Mauro Carvalho Chehab authored
Some identifiers have different names between their prototypes and the kernel-doc markup. In the specific case of netif_subqueue_stopped(), keep the current markup for __netif_subqueue_stopped(), adding a new one for netif_subqueue_stopped(). Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by:
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Mauro Carvalho Chehab authored
Some identifiers have different names between their prototypes and the kernel-doc markup. Signed-off-by:
Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by:
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