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Commit 625d7d35 authored by Don Brace's avatar Don Brace Committed by Martin K. Petersen
Browse files

scsi: hpsa: correct ioaccel2 chaining 



- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_LAST_SG for
  the last s/g element.

- set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_CHAIN when
  chaining.

Reviewed-by: default avatarBader Ali - Saleh <bader.alisaleh@microsemi.com>
Reviewed-by: default avatarScott Teel <scott.teel@microsemi.com>
Reviewed-by: default avatarMatt Perricone <matt.perricone@microsemi.com>
Signed-off-by: default avatarDon Brace <don.brace@microsemi.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent cc8f5260

drivers/scsi/hpsa.c

+6 −1
Original line number Diff line number Diff line
@@ -4940,7 +4940,7 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, 
			curr_sg->reserved[0] = 0;

			curr_sg->reserved[1] = 0;

			curr_sg->reserved[2] = 0;

			curr_sg->chain_indicator = 0x80;

			curr_sg->chain_indicator = IOACCEL2_CHAIN;



			curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex];

		}
@@ -4957,6 +4957,11 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, 
			curr_sg++;

		}



		/*

		 * Set the last s/g element bit

		 */

		(curr_sg - 1)->chain_indicator = IOACCEL2_LAST_SG;



		switch (cmd->sc_data_direction) {

		case DMA_TO_DEVICE:

			cp->direction &= ~IOACCEL2_DIRECTION_MASK;

drivers/scsi/hpsa_cmd.h

+1 −0
Original line number Diff line number Diff line
@@ -517,6 +517,7 @@ struct ioaccel2_sg_element { 
	u8 reserved[3];

	u8 chain_indicator;

#define IOACCEL2_CHAIN 0x80

#define IOACCEL2_LAST_SG 0x40

};



/*