> -----Original Message----- > From: Christoph Hellwig [mailto:h...@infradead.org] > Sent: Thursday, July 10, 2014 3:25 AM > To: KY Srinivasan > Cc: linux-ker...@vger.kernel.org; de...@linuxdriverproject.org; > oher...@suse.com; jbottom...@parallels.com; h...@infradead.org; > jasow...@redhat.com; a...@canonical.com; linux-s...@vger.kernel.org; > sta...@vger.kernel.org > Subject: Re: [PATCH V2 2/8] Drivers: scsi: storvsc: Set cmd_per_lun to reflect > value supported by the Host > > > - .cmd_per_lun = 1, > > + .cmd_per_lun = 255, > > .can_queue = > STORVSC_MAX_IO_REQUESTS*STORVSC_MAX_TARGETS, > > slave_configure immediately adjusts this down to > STORVSC_MAX_IO_REQUESTS (250), any reson to start out with the magic > 255 here?
The number 255 (set for cmd_per_lun) is what the host can support (I recently discovered this in an MSDN document). STORVSC_MAX_IO_REQUESTS is an implementation limitation in this driver. Regards, K. Y _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
