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Commit be168a3b authored by Jeff Skirvin's avatar Jeff Skirvin Committed by James Bottomley
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[SCSI] isci: link speeds default to gen 2 



Gen-3 operation is marginal, default to gen-2 for now.

Signed-off-by: default avatarJeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 6024d38b

drivers/scsi/isci/host.c

+3 −2
Original line number Diff line number Diff line
@@ -1676,8 +1676,9 @@ static void sci_controller_set_default_config_parameters(struct isci_host *ihost 


	/* Initialize all of the phy parameter information. */

	for (index = 0; index < SCI_MAX_PHYS; index++) {

		/* Default to 6G (i.e. Gen 3) for now. */

		ihost->user_parameters.phys[index].max_speed_generation = 3;

		/* Default to 3G (i.e. Gen 2). */

		ihost->user_parameters.phys[index].max_speed_generation =

			SCIC_SDS_PARM_GEN2_SPEED;



		/* the frequencies cannot be 0 */

		ihost->user_parameters.phys[index].align_insertion_frequency = 0x7f;

drivers/scsi/isci/init.c

+1 −1
Original line number Diff line number Diff line
@@ -114,7 +114,7 @@ u16 stp_inactive_to = 5; 
module_param(stp_inactive_to, ushort, 0);

MODULE_PARM_DESC(stp_inactive_to, "STP inactivity timeout (100us incr)");



unsigned char phy_gen = 3;

unsigned char phy_gen = SCIC_SDS_PARM_GEN2_SPEED;

module_param(phy_gen, byte, 0);

MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)");