nvme/core: adjust fixed doorbell mmio size #48
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If application takes more than 512 sq/cq pairs, @ctrl->doorbells can't simply represent the mmio region since it has fixed size of mmio (0x1000). To support large number of qpairs, calculate the proper mmio doorbell size and map the proper size of it. To do that, &struct nvme_ctrl_opts is used to get the size of the doorbell possible. Signed-off-by: Minwoo Im <minwoo.im@samsung.com>
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If application takes more than 512 sq/cq pairs, @ctrl->doorbells can't simply represent the mmio region since it has fixed size of mmio (0x1000). To support large number of qpairs, calculate the proper mmio doorbell size and map the proper size of it. To do that, &struct nvme_ctrl_opts is used to get the size of the doorbell possible.