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path: root/drivers/net/ethernet/qlogic/qed/qed_hw.c
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* net: qed: correct qed_hw_err_notify() prototypeAlexander Lobakin2020-07-061-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the prototype of qed_hw_err_notify() with the following: * constify "fmt" argument according to printk() declarations; * anontate it with __cold attribute to move the function out of the line; * annotate it with __printf() attribute; This eliminates W=1+ warning: drivers/net/ethernet/qlogic/qed/qed_hw.c: In function ‘qed_hw_err_notify’: drivers/net/ethernet/qlogic/qed/qed_hw.c:851:3: warning: function ‘qed_hw_err_notify’ might be a candidate for ‘gnu_printf’ format attribute [-Wsuggest-attribute=format] len = vsnprintf(buf, QED_HW_ERR_MAX_STR_SIZE, fmt, vl); ^~~ as well as saves some code size: add/remove: 0/0 grow/shrink: 2/4 up/down: 40/-125 (-85) Function old new delta qed_dmae_execute_command 1680 1711 +31 qed_spq_post 1104 1113 +9 qed_int_sp_dpc 3554 3545 -9 qed_mcp_cmd_and_union 1896 1876 -20 qed_hw_err_notify 395 352 -43 qed_mcp_handle_events 2630 2577 -53 Total: Before=368645, After=368560, chg -0.02% __printf() will also be helpful with catching bad format strings and arguments. Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: qed: update copyright yearsAlexander Lobakin2020-06-301-0/+1
| | | | | | | | Set the actual copyright holder and years in all qed source files. Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: qed: convert to SPDX License IdentifiersAlexander Lobakin2020-06-301-28/+1
| | | | | | | | | | | QLogic QED drivers source code is dual licensed under GPL-2.0/BSD-3-Clause. Remove all the boilerplates in the existing code and replace it with the correct SPDX tag. Signed-off-by: Alexander Lobakin <alobakin@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: qed: critical err reporting to management firmwareIgor Russkikh2020-05-141-0/+3
| | | | | | | | | | | | | | | On various critical errors, notification handler should also report the err information into the management firmware. MFW can interact with server/motherboard backend agents - these are used by server manufacturers to monitor server HW health. Thus, it is important for driver to report on any faulty conditions Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: qed: invoke err notify on critical areasIgor Russkikh2020-05-141-3/+4
| | | | | | | | | | | | | | In a number of critical places not only debug trace should be printed, but the appropriate hw error condition should be raised and error handling/recovery should start. Introduce our new qed_hw_err_notify invocation in these places to record and indicate critical error conditions in hardware. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: qed: adding hw_err states and handlingIgor Russkikh2020-05-141-0/+32
| | | | | | | | | | | | | | | | Here we introduce qed device error tracking flags and error types. qed_hw_err_notify is an entrace point to report errors. It'll notify higher level drivers (qede/qedr/etc) to handle and recover the error. List of posible errors comes from hardware interfaces, but could be extended in future. Signed-off-by: Ariel Elior <ariel.elior@marvell.com> Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Use dmae to write to widebus registers in fw_funcsMichal Kalderon2020-01-271-37/+30
| | | | | | | | | | | | | | 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>
* qed: Modify api for performing a dmae to another PFMichal Kalderon2019-05-261-20/+24
| | | | | | | | | | | | | This patch modifies the dmae API to enable performing a dmae operation to another PF. This enables sharing between the llh entries between PFs and thus increasing the amount of filters per PF under certain configurations. The llh entries require using the dmae since the memory is widebus, which requires atomicity in access. 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>
* qed: Add infrastructure for error detection and recoveryTomer Tayar2019-01-281-0/+11
| | | | | | | | | | | | | | This patch adds the detection and handling of a parity error ("process kill event"), including the update of the protocol drivers, and the prevention of any HW access that will lead to device access towards the host while recovery is in progress. It also provides the means for the protocol drivers to trigger a recovery process on their decision. Signed-off-by: Tomer Tayar <tomer.tayar@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed*: Utilize FW 8.37.2.0Michal Kalderon2018-06-051-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This FW contains several fixes and features. RDMA - Several modifications and fixes for Memory Windows - drop vlan and tcp timestamp from mss calculation in driver for this FW - Fix SQ completion flow when local ack timeout is infinite - Modifications in t10dif support ETH - Fix aRFS for tunneled traffic without inner IP. - Fix chip configuration which may fail under heavy traffic conditions. - Support receiving any-VNI in VXLAN and GENEVE RX classification. iSCSI / FcoE - Fix iSCSI recovery flow - Drop vlan and tcp timestamp from mss calc for fw 8.37.2.0 Misc - Several registers (split registers) won't read correctly with ethtool -d Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed*: Utilize FW 8.33.1.0Tomer Tayar2018-01-021-0/+68
| | | | | | | | | | | | | | | | | | | | | | Advance the qed* drivers to use firmware 8.33.1.0: Modify core driver (qed) to utilize the new FW and initialize the device with it. This is the lion's share of the patch, and includes changes to FW interface files, device initialization flows, FW interaction flows, and debug collection flows. Modify Ethernet driver (qede) to make use of new FW in fastpath. Modify RoCE/iWARP driver (qedr) to make use of new FW in fastpath. Modify FCoE driver (qedf) to make use of new FW in fastpath. Modify iSCSI driver (qedi) to make use of new FW in fastpath. Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com> Signed-off-by: Yuval Bason <Yuval.Bason@cavium.com> Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Manish Chopra <Manish.Chopra@cavium.com> Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com> Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Warn PTT usage by wrong hw-functionMintz, Yuval2017-04-061-0/+7
| | | | | | | | | | PTT entries are per-hwfn; If some errneous flow is trying to use a PTT belonging to a differnet hwfn warn user, as this can break every register accessing flow later and is very hard to root-cause. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Revise QM cofigurationAriel Elior2017-04-031-52/+0
| | | | | | | | | | Refactor and clean up the queue manager initialization logic. Also, this adds support for RoC low latency queues, which later would be used for improving RoCE latency in high throughput scenarios. Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Add support for hardware offloaded FCoE.Arun Easi2017-02-191-0/+3
| | | | | | | | | | This adds the backbone required for the various HW initalizations which are necessary for the FCoE driver (qedf) for QLogic FastLinQ 4xxxx line of adapters - FW notification, resource initializations, etc. Signed-off-by: Arun Easi <arun.easi@cavium.com> Signed-off-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed*: Update to dual-licenseMintz, Yuval2017-01-011-4/+28
| | | | | | | | | | | Since the submission of the qedr driver, there's inconsistency in the licensing of the various qed/qede files - some are GPLv2 and some are dual-license. Since qedr requires dual-license and it's dependent on both, we're updating the licensing of all qed/qede source files. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Remove OOM messagesJoe Perches2016-09-061-9/+3
| | | | | | | | | | | | | | | | | These messages are unnecessary as OOM allocation failures already do a dump_stack() giving more or less the same information. $ size drivers/net/ethernet/qlogic/qed/built-in.o* (defconfig x86-64) text data bss dec hex filename 127817 27969 32800 188586 2e0aa drivers/net/ethernet/qlogic/qed/built-in.o.new 132474 27969 32800 193243 2f2db drivers/net/ethernet/qlogic/qed/built-in.o.old Miscellanea: o Change allocs to the generally preferred forms where possible. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed*: Semantic changesYuval Mintz2016-08-151-84/+53
| | | | | | | | | | | | Make semantic-only adjustments to qed* drivers, such as: - Changes in code indentation. - Usage of BIT() macro. - re-naming of variables. - Re-ordering of variable declerations. - Removal of (== 0) and (!= 0) in conditions. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Add support for coalescing config read/update.Sudarsana Reddy Kalluru2016-06-231-0/+23
| | | | | | | | | | This patch adds support for configuring the device tx/rx coalescing timeout values in the order of micro seconds. It also adds APIs for upper layer drivers for reading/updating the coalescing values. Signed-off-by: Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Initialize hardware for new protocolsYuval Mintz2016-06-031-6/+20
| | | | | | | | | | | | | RoCE and iSCSI would require some added/changed hw configuration in order to properly run; The biggest single change being the requirement of allocating and mapping host memory for several HW blocks that aren't being used by qede [SRC, QM, TM, etc.]. In addition, whereas qede is only using context memory for HW blocks, the new protocol would also require task memories to be added. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Utilize FW 8.10.3.0Yuval Mintz2016-06-021-3/+3
| | | | | | | | | | | | | | | The New QED firmware contains several fixes, including: - Wrong classification of packets in 4-port devices. - Anti-spoof interoperability with encapsulated packets. - Tx-switching of encapsulated packets. It also slightly improves Tx performance of the device. In addition, this firmware contains the necessary logic for supporting iscsi & rdma, for which we plan on pushing protocol drivers in the imminent future. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Introduce VFsYuval Mintz2016-05-121-2/+10
| | | | | | | | | | | | | | | | | This adds the qed VFs for the first time - The vfs are limited functions, with a very different PCI bar structure [when compared with PFs] to better impose the related security demands associated with them. This patch includes the logic neccesary to allow VFs to successfully probe [without actually adding the ability to enable iov]. This includes diverging all the flows that would occur as part of the pci probe of the driver, preventing VF from accessing registers/memories it can't and instead utilize the VF->PF channel to query the PF for needed information. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Add VF->PF channel infrastructureYuval Mintz2016-05-121-6/+38
| | | | | | | | | | | | | | | | | | | | | Communication between VF and PF is based on a dedicated HW channel; VF will prepare a messge, and by signaling the HW the PF would get a notification of that message existance. The PF would then copy the message, process it and DMA an answer back to the VF as a response. The messages themselves are TLV-based - allowing easier backward/forward compatibility. This patch adds the infrastructure of the channel on the PF side - starting with the arrival of the notification and ending with DMAing the response back to the VF. It also adds a dummy-response as reference, as it only lays the groundwork of the communication; it doesn't really add support of any actual messages. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Add CONFIG_QED_SRIOVYuval Mintz2016-05-121-0/+11
| | | | | | | | | | | | | Add support for a new Kconfig option for qed* driver which would allow [eventually] the support in VFs. This patch adds the necessary logic in the PF to learn about the possible VFs it will have to support [Based on PCI configuration space and HW], and prepare a database with an entry per-VF as infrastructure for future interaction with said VFs. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Turn most GFP_ATOMIC into GFP_KERNELYuval Mintz2016-02-211-1/+1
| | | | | | | | | Initial driver submission used GFP_ATOMIC almost inclusively when allocating memory. We now remedy this point, using GFP_KERNEL where it's possible. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Add module with basic common supportYuval Mintz2015-10-271-0/+776
The Qlogic Everest Driver is the backend module for the QL4xxx ethernet products by Qlogic. This module serves two main purposes: 1. It's responsible to contain all the common code that will be shared between the various drivers that would be used with said line of products. Flows such as chip initialization and de-initialization fall under this category. 2. It would abstract the protocol-specific HW & FW components, allowing the protocol drivers to have a clean APIs which is detached in its slowpath configuration from the actual HSI. This adds a very basic module without any protocol-specific bits. I.e., this adds a basic implementation that almost entirely falls under the first category. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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