From be540a991e2097c313d7304e0daaf89d68011bb9 Mon Sep 17 00:00:00 2001 From: Krishna Gudipati Date: Mon, 13 Jun 2011 15:53:04 -0700 Subject: [SCSI] bfa: FC credit recovery and misc bug fixes. - Introduce FC credit recovery. - Added module parameter to enable/disable credit recovery. Bug Fixes: - Removed check for ignoring plogi from initiator in switched fabric mode. - The ABTS for PLOGI is going out few millisecs earlier due to FW timer calibration (around 300 miilisecs earlier). So there is a window if an accept comes during this time HBA would have initiated an ABORT. - Added 1 to FC_ELS_TOV for compensating for FW timer. Signed-off-by: Krishna Gudipati Signed-off-by: James Bottomley --- drivers/scsi/bfa/bfa_fcbuild.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers/scsi/bfa/bfa_fcbuild.c') diff --git a/drivers/scsi/bfa/bfa_fcbuild.c b/drivers/scsi/bfa/bfa_fcbuild.c index b7e25345165..08fba370cf4 100644 --- a/drivers/scsi/bfa/bfa_fcbuild.c +++ b/drivers/scsi/bfa/bfa_fcbuild.c @@ -94,7 +94,6 @@ fcbuild_init(void) */ plogi_tmpl.csp.verhi = FC_PH_VER_PH_3; plogi_tmpl.csp.verlo = FC_PH_VER_4_3; - plogi_tmpl.csp.bbcred = cpu_to_be16(0x0004); plogi_tmpl.csp.ciro = 0x1; plogi_tmpl.csp.cisc = 0x0; plogi_tmpl.csp.altbbcred = 0x0; @@ -207,7 +206,7 @@ fc_bls_rsp_build(struct fchs_s *fchs, u32 d_id, u32 s_id, __be16 ox_id) static u16 fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id, __be16 ox_id, wwn_t port_name, wwn_t node_name, - u16 pdu_size, u8 els_code) + u16 pdu_size, u16 bb_cr, u8 els_code) { struct fc_logi_s *plogi = (struct fc_logi_s *) (pld); @@ -220,6 +219,7 @@ fc_plogi_x_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id, fc_els_rsp_build(fchs, d_id, s_id, ox_id); plogi->csp.rxsz = plogi->class3.rxsz = cpu_to_be16(pdu_size); + plogi->csp.bbcred = cpu_to_be16(bb_cr); memcpy(&plogi->port_name, &port_name, sizeof(wwn_t)); memcpy(&plogi->node_name, &node_name, sizeof(wwn_t)); @@ -268,15 +268,17 @@ fc_flogi_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id, u16 fc_flogi_acc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id, __be16 ox_id, wwn_t port_name, wwn_t node_name, - u16 pdu_size, u16 local_bb_credits) + u16 pdu_size, u16 local_bb_credits, u8 bb_scn) { u32 d_id = 0; + u16 bbscn_rxsz = (bb_scn << 12) | pdu_size; memcpy(flogi, &plogi_tmpl, sizeof(struct fc_logi_s)); fc_els_rsp_build(fchs, d_id, s_id, ox_id); flogi->els_cmd.els_code = FC_ELS_ACC; - flogi->csp.rxsz = flogi->class3.rxsz = cpu_to_be16(pdu_size); + flogi->class3.rxsz = cpu_to_be16(pdu_size); + flogi->csp.rxsz = cpu_to_be16(bbscn_rxsz); /* bb_scn/rxsz */ flogi->port_name = port_name; flogi->node_name = node_name; @@ -306,19 +308,19 @@ fc_fdisc_build(struct fchs_s *fchs, struct fc_logi_s *flogi, u32 s_id, u16 fc_plogi_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name, - u16 pdu_size) + u16 pdu_size, u16 bb_cr) { return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name, - node_name, pdu_size, FC_ELS_PLOGI); + node_name, pdu_size, bb_cr, FC_ELS_PLOGI); } u16 fc_plogi_acc_build(struct fchs_s *fchs, void *pld, u32 d_id, u32 s_id, u16 ox_id, wwn_t port_name, wwn_t node_name, - u16 pdu_size) + u16 pdu_size, u16 bb_cr) { return fc_plogi_x_build(fchs, pld, d_id, s_id, ox_id, port_name, - node_name, pdu_size, FC_ELS_ACC); + node_name, pdu_size, bb_cr, FC_ELS_ACC); } enum fc_parse_status -- cgit v1.2.3