2 * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
6 * Linux driver for Brocade Fibre Channel Host Bus Adapter.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License (GPL) Version 2 as
10 * published by the Free Software Foundation
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
19 * port_loop.c vport private loop implementation.
23 #include "fcs_lport.h"
24 #include "fcs_rport.h"
25 #include "fcs_trcmod.h"
26 #include "lport_priv.h"
28 BFA_TRC_FILE(FCS
, LOOP
);
31 * ALPA to LIXA bitmap mapping
33 * ALPA 0x00 (Word 0, Bit 30) is invalid for N_Ports. Also Word 0 Bit 31
34 * is for L_bit (login required) and is filled as ALPA 0x00 here.
36 static const u8 port_loop_alpa_map
[] = {
37 0xEF, 0xE8, 0xE4, 0xE2, 0xE1, 0xE0, 0xDC, 0xDA, /* Word 3 Bits 0..7 */
38 0xD9, 0xD6, 0xD5, 0xD4, 0xD3, 0xD2, 0xD1, 0xCE, /* Word 3 Bits 8..15 */
39 0xCD, 0xCC, 0xCB, 0xCA, 0xC9, 0xC7, 0xC6, 0xC5, /* Word 3 Bits 16..23 */
40 0xC3, 0xBC, 0xBA, 0xB9, 0xB6, 0xB5, 0xB4, 0xB3, /* Word 3 Bits 24..31 */
42 0xB2, 0xB1, 0xAE, 0xAD, 0xAC, 0xAB, 0xAA, 0xA9, /* Word 2 Bits 0..7 */
43 0xA7, 0xA6, 0xA5, 0xA3, 0x9F, 0x9E, 0x9D, 0x9B, /* Word 2 Bits 8..15 */
44 0x98, 0x97, 0x90, 0x8F, 0x88, 0x84, 0x82, 0x81, /* Word 2 Bits 16..23 */
45 0x80, 0x7C, 0x7A, 0x79, 0x76, 0x75, 0x74, 0x73, /* Word 2 Bits 24..31 */
47 0x72, 0x71, 0x6E, 0x6D, 0x6C, 0x6B, 0x6A, 0x69, /* Word 1 Bits 0..7 */
48 0x67, 0x66, 0x65, 0x63, 0x5C, 0x5A, 0x59, 0x56, /* Word 1 Bits 8..15 */
49 0x55, 0x54, 0x53, 0x52, 0x51, 0x4E, 0x4D, 0x4C, /* Word 1 Bits 16..23 */
50 0x4B, 0x4A, 0x49, 0x47, 0x46, 0x45, 0x43, 0x3C, /* Word 1 Bits 24..31 */
52 0x3A, 0x39, 0x36, 0x35, 0x34, 0x33, 0x32, 0x31, /* Word 0 Bits 0..7 */
53 0x2E, 0x2D, 0x2C, 0x2B, 0x2A, 0x29, 0x27, 0x26, /* Word 0 Bits 8..15 */
54 0x25, 0x23, 0x1F, 0x1E, 0x1D, 0x1B, 0x18, 0x17, /* Word 0 Bits 16..23 */
55 0x10, 0x0F, 0x08, 0x04, 0x02, 0x01, 0x00, 0x00, /* Word 0 Bits 24..31 */
61 static bfa_status_t
bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s
*port
,
64 static void bfa_fcs_port_loop_plogi_response(void *fcsarg
,
65 struct bfa_fcxp_s
*fcxp
,
67 bfa_status_t req_status
,
70 struct fchs_s
*rsp_fchs
);
72 * Called by port to initializar in provate LOOP topology.
75 bfa_fcs_port_loop_init(struct bfa_fcs_port_s
*port
)
80 * Called by port to notify transition to online state.
83 bfa_fcs_port_loop_online(struct bfa_fcs_port_s
*port
)
86 u8 num_alpa
= port
->port_topo
.ploop
.num_alpa
;
87 u8
*alpa_pos_map
= port
->port_topo
.ploop
.alpa_pos_map
;
88 struct bfa_fcs_rport_s
*r_port
;
92 * If the port role is Initiator Mode, create Rports.
94 if (port
->port_cfg
.roles
== BFA_PORT_ROLE_FCP_IM
) {
96 * Check if the ALPA positional bitmap is available.
97 * if not, we send PLOGI to all possible ALPAs.
100 for (ii
= 0; ii
< num_alpa
; ii
++) {
102 * ignore ALPA of bfa port
104 if (alpa_pos_map
[ii
] != port
->pid
) {
105 r_port
= bfa_fcs_rport_create(port
,
110 for (ii
= 0; ii
< MAX_ALPA_COUNT
; ii
++) {
112 * ignore ALPA of bfa port
114 if ((port_loop_alpa_map
[ii
] > 0)
115 && (port_loop_alpa_map
[ii
] != port
->pid
))
116 bfa_fcs_port_loop_send_plogi(port
,
117 port_loop_alpa_map
[ii
]);
130 * Called by port to notify transition to offline state.
133 bfa_fcs_port_loop_offline(struct bfa_fcs_port_s
*port
)
139 * Called by port to notify a LIP on the loop.
142 bfa_fcs_port_loop_lip(struct bfa_fcs_port_s
*port
)
150 bfa_fcs_port_loop_send_plogi(struct bfa_fcs_port_s
*port
, u8 alpa
)
153 struct bfa_fcxp_s
*fcxp
= NULL
;
156 bfa_trc(port
->fcs
, alpa
);
158 fcxp
= bfa_fcxp_alloc(NULL
, port
->fcs
->bfa
, 0, 0, NULL
, NULL
, NULL
,
162 len
= fc_plogi_build(&fchs
, bfa_fcxp_get_reqbuf(fcxp
), alpa
,
163 bfa_fcs_port_get_fcid(port
), 0,
164 port
->port_cfg
.pwwn
, port
->port_cfg
.nwwn
,
165 bfa_fcport_get_maxfrsize(port
->fcs
->bfa
));
167 bfa_fcxp_send(fcxp
, NULL
, port
->fabric
->vf_id
, port
->lp_tag
, BFA_FALSE
,
168 FC_CLASS_3
, len
, &fchs
,
169 bfa_fcs_port_loop_plogi_response
, (void *)port
,
170 FC_MAX_PDUSZ
, FC_RA_TOV
);
172 return BFA_STATUS_OK
;
176 * Called by fcxp to notify the Plogi response
179 bfa_fcs_port_loop_plogi_response(void *fcsarg
, struct bfa_fcxp_s
*fcxp
,
180 void *cbarg
, bfa_status_t req_status
,
181 u32 rsp_len
, u32 resid_len
,
182 struct fchs_s
*rsp_fchs
)
184 struct bfa_fcs_port_s
*port
= (struct bfa_fcs_port_s
*) cbarg
;
185 struct fc_logi_s
*plogi_resp
;
186 struct fc_els_cmd_s
*els_cmd
;
188 bfa_trc(port
->fcs
, req_status
);
193 if (req_status
!= BFA_STATUS_OK
) {
194 bfa_trc(port
->fcs
, req_status
);
197 * This could mean that the device with this APLA does not
204 els_cmd
= (struct fc_els_cmd_s
*) BFA_FCXP_RSP_PLD(fcxp
);
205 plogi_resp
= (struct fc_logi_s
*) els_cmd
;
207 if (els_cmd
->els_code
== FC_ELS_ACC
) {
208 bfa_fcs_rport_start(port
, rsp_fchs
, plogi_resp
);
210 bfa_trc(port
->fcs
, plogi_resp
->els_cmd
.els_code
);