From bbe37a67d9da18e40dfd9232586612424b1466f7 Mon Sep 17 00:00:00 2001 From: Vijaya Mohan Guvva Date: Mon, 13 May 2013 02:33:19 -0700 Subject: [SCSI] bfa: Support for FC BB credit recovery This patch includes changes to 1) Enable/disable fc credit recovery on Brocade FC adapter port operating at max supported speed. 2) Get credit recovery status and stats related to credit loss and recovered credits Signed-off-by: Vijaya Mohan Guvva Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfad_bsg.c | 47 ++++++++++++++++++++++++++++++++------------- 1 file changed, 34 insertions(+), 13 deletions(-) (limited to 'drivers/scsi/bfa/bfad_bsg.c') diff --git a/drivers/scsi/bfa/bfad_bsg.c b/drivers/scsi/bfa/bfad_bsg.c index 555e7db94a1c..bda1500e1a20 100644 --- a/drivers/scsi/bfa/bfad_bsg.c +++ b/drivers/scsi/bfa/bfad_bsg.c @@ -402,25 +402,43 @@ bfad_iocmd_port_cfg_maxfrsize(struct bfad_s *bfad, void *cmd) } int -bfad_iocmd_port_cfg_bbsc(struct bfad_s *bfad, void *cmd, unsigned int v_cmd) +bfad_iocmd_port_cfg_bbcr(struct bfad_s *bfad, unsigned int cmd, void *pcmd) { - struct bfa_bsg_gen_s *iocmd = (struct bfa_bsg_gen_s *)cmd; - struct bfa_fcport_s *fcport = BFA_FCPORT_MOD(&bfad->bfa); - unsigned long flags; + struct bfa_bsg_bbcr_enable_s *iocmd = + (struct bfa_bsg_bbcr_enable_s *)pcmd; + unsigned long flags; + int rc; spin_lock_irqsave(&bfad->bfad_lock, flags); - if (bfa_ioc_get_type(&bfad->bfa.ioc) == BFA_IOC_TYPE_FC) { - if (v_cmd == IOCMD_PORT_BBSC_ENABLE) - fcport->cfg.bb_scn_state = BFA_TRUE; - else if (v_cmd == IOCMD_PORT_BBSC_DISABLE) - fcport->cfg.bb_scn_state = BFA_FALSE; + if (cmd == IOCMD_PORT_BBCR_ENABLE) + rc = bfa_fcport_cfg_bbcr(&bfad->bfa, BFA_TRUE, iocmd->bb_scn); + else if (cmd == IOCMD_PORT_BBCR_DISABLE) + rc = bfa_fcport_cfg_bbcr(&bfad->bfa, BFA_FALSE, 0); + else { + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + return -EINVAL; } spin_unlock_irqrestore(&bfad->bfad_lock, flags); - iocmd->status = BFA_STATUS_OK; + iocmd->status = rc; return 0; } +int +bfad_iocmd_port_get_bbcr_attr(struct bfad_s *bfad, void *pcmd) +{ + struct bfa_bsg_bbcr_attr_s *iocmd = (struct bfa_bsg_bbcr_attr_s *) pcmd; + unsigned long flags; + + spin_lock_irqsave(&bfad->bfad_lock, flags); + iocmd->status = + bfa_fcport_get_bbcr_attr(&bfad->bfa, &iocmd->attr); + spin_unlock_irqrestore(&bfad->bfad_lock, flags); + + return 0; +} + + static int bfad_iocmd_lport_get_attr(struct bfad_s *bfad, void *cmd) { @@ -2750,9 +2768,12 @@ bfad_iocmd_handler(struct bfad_s *bfad, unsigned int cmd, void *iocmd, case IOCMD_PORT_CFG_MAXFRSZ: rc = bfad_iocmd_port_cfg_maxfrsize(bfad, iocmd); break; - case IOCMD_PORT_BBSC_ENABLE: - case IOCMD_PORT_BBSC_DISABLE: - rc = bfad_iocmd_port_cfg_bbsc(bfad, iocmd, cmd); + case IOCMD_PORT_BBCR_ENABLE: + case IOCMD_PORT_BBCR_DISABLE: + rc = bfad_iocmd_port_cfg_bbcr(bfad, cmd, iocmd); + break; + case IOCMD_PORT_BBCR_GET_ATTR: + rc = bfad_iocmd_port_get_bbcr_attr(bfad, iocmd); break; case IOCMD_LPORT_GET_ATTR: rc = bfad_iocmd_lport_get_attr(bfad, iocmd); -- cgit