Guilherme G. Piccoli 54adc01055 nvme/quirk: Add a delay before checking for adapter readiness ... When disabling the controller, the specification says the register NVME_REG_CC should be written and then driver needs to wait the adapter to be ready, which is checked by reading another register bit (NVME_CSTS_RDY). There's a timeout validation in this checking, so in case this timeout is reached the driver gives up and removes the adapter from the system. After a firmware activation procedure, the PCI_DEVICE(0x1c58, 0x0003) (HGST adapter) end up being removed if we issue a reset_controller, because driver keeps verifying the NVME_REG_CSTS until the timeout is reached. This patch adds a necessary quirk for this adapter, by introducing a delay before nvme_wait_ready(), so the reset procedure is able to be completed. This quirk is needed because just increasing the timeout is not enough in case of this adapter - the driver must wait before start reading NVME_REG_CSTS register on this specific device. Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>		2016-07-12 08:23:00 -07:00
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host	nvme/quirk: Add a delay before checking for adapter readiness	2016-07-12 08:23:00 -07:00
target	nvmet-rdma: add a NVMe over Fabrics RDMA target driver	2016-07-08 08:38:49 -06:00
Kconfig	nvmet: add a generic NVMe target	2016-07-05 11:30:33 -06:00
Makefile	nvmet: add a generic NVMe target	2016-07-05 11:30:33 -06:00