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2018-10-17octeontx2-af: Forward CGX link notifications to PFsLinu Cherian
Upon receiving notification from firmware the CGX event handler in the AF driver gets the current link info such as status, speed, duplex etc from CGX driver and sends it across to PFs who have registered to receive such notifications. To support above - Mbox messaging support for sending msgs from AF to PF has been added. - Added mbox msgs so that PFs can register/unregister for link events. - Link notifications are sent to PF under two scenarioss. 1. When a asynchronous link change notification is received from firmware with notification flag turned on for that PF. 2. Upon notification turn on request, the current link status is send to the PF. Also added a new mailbox msg using which RVU PF/VF can retrieve their mapped CGX LMAC's current link info. Link info includes status, speed, duplex and lmac type. Signed-off-by: Linu Cherian <lcherian@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17octeontx2-af: Support for MAC address filters in CGXVidhya Raman
This patch adds support for setting MAC address filters in CGX for PF interfaces. Also PF interfaces can be put in promiscuous mode. Dataplane PFs access this functionality using mailbox messages to the AF driver. Signed-off-by: Vidhya Raman <vraman@marvell.com> Signed-off-by: Stanislaw Kardach <skardach@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17octeontx2-af: Support to retrieve CGX LMAC statsChristina Jacob
This patch adds support for a RVU PF/VF driver to retrieve it's mapped CGX LMAC Rx and Tx stats from AF via mbox. New mailbox msg is added is added. Signed-off-by: Christina Jacob <cjacob@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17octeontx2-af: CGX Rx/Tx enable/disable mbox handlersSunil Goutham
Added new mailbox msgs for RVU PF/VFs to request AF to enable/disable their mapped CGX::LMAC Rx & Tx. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: Linu Cherian <lcherian@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17octeontx2-af: Improve register polling loopSunil Goutham
Instead of looping on a integer timeout, use time_before(jiffies), so that maximum poll time is capped. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17sparc: Fix syscall fallback bugs in VDSO.David S. Miller
First, the trap number for 32-bit syscalls is 0x10. Also, only negate the return value when syscall error is indicated by the carry bit being set. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17scsi: fnic: replace gross legacy tag hack with blk-mq hackJens Axboe
Would be nice to fix up the SCSI midlayer instead, but this will do for now. Cc: Christoph Hellwig <hch@lst.de> Cc: Satish Kharat <satishkh@cisco.com> Cc: linux-scsi@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: mesh: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: ips: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: smartpqi: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Don Brace <don.brace@microchip.com> Acked-by: Don Brace <don.brace@microchip.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: vmw_pscsi: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: snic: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: qla4xxx: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: qla2xxx: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: qla1280: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: qedi: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: qedf: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Chad Dupuis <chad.dupuis@cavium.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: pm8001: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: nsp32: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: mvsas: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: mvumi: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Also reuse an existing helper (after fixing the error return) to set the DMA mask instead of having three copies of the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: mpt3sas: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Also simplify setting the DMA mask a bit. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: megaraid_sas: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Sumit Saxena <sumit.saxena@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: megaraid_mbox: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: hpsa: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Don Brace <don.brace@microchip.com> Acked-by: Don Brace <don.brace@microchip.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: fnic: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: csiostor: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: be2iscsi: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: atp870u: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: a100u2w: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: BusLogic: switch to generic DMA APIChristoph Hellwig
Switch from the legacy PCI DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: 3w-sas: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: 3w-xxx: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: 3w-9xxx: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Adam Radford <aradford@gmail.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: aic94xx: fully convert to the generic DMA APIChristoph Hellwig
The driver is currently using an odd mix of legacy PCI DMA API and generic DMA API calls, switch it over to the generic API entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: esp_scsi: Optimize PIO loopsFinn Thain
Avoid function calls in the inner PIO loops. On a Centris 660av this improves throughput for sequential read transfers by about 40% and sequential write by about 10%. Unfortunately it is not possible to have methods like .esp_write8 placed inline so this is always going to be slow, even with LTO. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: esp_scsi: De-duplicate PIO routinesFinn Thain
As a temporary measure, the code to implement PIO transfers was duplicated in zorro_esp and mac_esp. Now that it has stabilized move the common code into the core driver but don't build it unless needed. This replaces the inline assembler with more portable writesb() calls. Optimizing the m68k writesb() implementation is a separate patch. [mkp: applied by hand] Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Stan Johnson <userm57@yahoo.com> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: esp_scsi: Eliminate ESP_FLAG_DOING_SLOWCMDFinn Thain
The concept of a 'slow command' as it appears in esp_scsi is confusing because it could refer to an ESP command or a SCSI command. It turns out that it refers to a particular ESP select command which the driver also tracks as 'ESP_SELECT_MSGOUT'. For readability, it is better to use the terminology from the datasheets. The global ESP_FLAG_DOING_SLOWCMD flag is redundant anyway, as it can be inferred from esp->select_state. Remove the ESP_FLAG_DOING_SLOWCMD cruft and just use a boolean local variable. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: esp_scsi: Grant disconnect privilege for untagged commandsFinn Thain
A SCSI device is not granted disconnect privilege by an esp_scsi host unless that device has its simple_tags flag set. However, a device may support disconnect/reselect and not support command queueing. Allow such devices to disconnect and thereby improve bus utilization. Drop the redundant 'lp' check. The mid-layer invokes .slave_alloc and .slave_destroy in such a way that we may rely on scmd->device->hostdata for as long as scmd belongs to the low-level driver. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: esp_scsi: Track residual for PIO transfersFinn Thain
If a target disconnects during a PIO data transfer the command may fail when the target reconnects: scsi host1: DMA length is zero! scsi host1: cur adr[04380000] len[00000000] The scsi bus is then reset. This happens because the residual reached zero before the transfer was completed. The usual residual calculation relies on the Transfer Count registers. That works for DMA transfers but not for PIO transfers. Fix the problem by storing the PIO transfer residual and using that to correctly calculate bytes_sent. Fixes: 6fe07aaffbf0 ("[SCSI] m68k: new mac_esp scsi driver") Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: zorro_esp: Limit DMA transfers to 65535 bytesFinn Thain
The core driver, esp_scsi, does not use the ESP_CONFIG2_FENAB bit, so the chip's Transfer Counter register is only 16 bits wide (not 24). A larger transfer cannot work and will theoretically result in a failed command and a "DMA length is zero" error. Fixes: 3109e5ae0311 ("scsi: zorro_esp: New driver for Amiga Zorro NCR53C9x boards") Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Cc: Michael Schmitz <schmitzmic@gmail.com> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: dc395x: use generic DMA APIChristoph Hellwig
Convert the driver from the legacy pci_* DMA API to the generic DMA API. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: dc395x: fix DMA API usage in sg_update_listChristoph Hellwig
We need to transfer device ownership to the CPU before we can manipulate the mapped data. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: dc395x: fix dma API usage in srb_doneChristoph Hellwig
We can't just transfer ownership to the CPU and then unmap, as this will break with swiotlb. Instead unmap the command and sense buffer a little earlier in the I/O completion handler and get rid of the pci_dma_sync_sg_for_cpu call entirely. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: dc395x: simplify list handlingChristoph Hellwig
Remove the list wrappers, including the pointless list iteration before deletion. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: myrs: Add Mylex RAID controller (SCSI interface)Hannes Reinecke
This patch adds support for the Mylex DAC960 RAID controller, supporting the newer, SCSI-based interface. The driver is a re-implementation of the original DAC960 driver. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: myrb: Add Mylex RAID controller (block interface)Hannes Reinecke
This patch adds support for the Mylex DAC960 RAID controller, supporting the older, block-based interface only. The driver is a re-implementation of the original DAC960 driver. Signed-off-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: advansys: remove unused variable 'srb_tag' in adv_isr_callbackYueHaibing
drivers/scsi/advansys.c: In function 'adv_isr_callback': drivers/scsi/advansys.c:5952:6: warning: variable 'srb_tag' set but not used [-Wunused-but-set-variable] It never used since introduction in commit 9c17c62aedb0 ("advansys: use shared host tag map for command lookup") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: core: Remove scsi_block_when_processing_errors: messageLaurence Oberman
This message floods the log when enabling mask 0x7 for /proc/sys/dev/scsi/logging_level: xxxxxxxx kernel: scsi_block_when_processing_errors: rtn: 1 It's not needed and makes tracing just scsi_eh* messages way too verbose so get rid of it. [mkp: mangled patch, applied by hand] Signed-off-by: Laurence Oberman <loberman@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Chad Dupuis <chad.dupuis@cavium.com> Reviewed-by: Ewan D. Milne <emilne@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17scsi: ibmvscsi_tgt: Remove target_wait_for_sess_cmd()Bryant G. Ly
There is currently a bug with the driver where there is never a call to target_sess_cmd_list_set_waiting(), it only called target_wait_for_sess_cmd(), which basically means that the sess_wait_list would always be empty. Thus, list_empty(&sess->sess_wait_list) = true, (eg: no se_cmd I/O is quiesced, because no se_cmd in sess_wait_list), since commit 712db3eb2c35 ("scsi: ibmvscsis: Properly deregister target sessions") in 4.9.y code. ibmvscsi_tgt does not remove the I_T Nexus when a VM is active so we can fix this issue by removing the call to target_wait_for_sess_cmd() altogether. Signed-off-by: Bryant G. Ly <bly@catalogicsoftware.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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