1 /* SPDX-License-Identifier: GPL-2.0 */
17  * struct cmd_scsw - command-mode subchannel status word
24  * @isic: initial-status interruption control
25  * @alcc: address-limit checking control
26  * @ssi: suppress-suspended interruption
27  * @zcc: zero condition code
63  * struct tm_scsw - transport-mode subchannel status word
68  * @x: IRB-format control
69  * @q: interrogate-complete
79  * @schxs: subchannel-extended status
105  * struct eadm_scsw - subchannel status word for eadm subchannels
135  * union scsw - subchannel status word
136  * @cmd: command-mode SCSW
137  * @tm: transport-mode SCSW
224  * scsw_is_tm - check for transport mode scsw
227  * Return non-zero if the specified scsw is a transport mode scsw, zero
232 	return css_general_characteristics.fcx && (scsw->tm.x == 1);  in scsw_is_tm()
236  * scsw_key - return scsw key field
245 		return scsw->tm.key;  in scsw_key()
247 		return scsw->cmd.key;  in scsw_key()
251  * scsw_eswf - return scsw eswf field
260 		return scsw->tm.eswf;  in scsw_eswf()
262 		return scsw->cmd.eswf;  in scsw_eswf()
266  * scsw_cc - return scsw cc field
275 		return scsw->tm.cc;  in scsw_cc()
277 		return scsw->cmd.cc;  in scsw_cc()
281  * scsw_ectl - return scsw ectl field
290 		return scsw->tm.ectl;  in scsw_ectl()
292 		return scsw->cmd.ectl;  in scsw_ectl()
296  * scsw_pno - return scsw pno field
305 		return scsw->tm.pno;  in scsw_pno()
307 		return scsw->cmd.pno;  in scsw_pno()
311  * scsw_fctl - return scsw fctl field
320 		return scsw->tm.fctl;  in scsw_fctl()
322 		return scsw->cmd.fctl;  in scsw_fctl()
326  * scsw_actl - return scsw actl field
335 		return scsw->tm.actl;  in scsw_actl()
337 		return scsw->cmd.actl;  in scsw_actl()
341  * scsw_stctl - return scsw stctl field
350 		return scsw->tm.stctl;  in scsw_stctl()
352 		return scsw->cmd.stctl;  in scsw_stctl()
356  * scsw_dstat - return scsw dstat field
365 		return scsw->tm.dstat;  in scsw_dstat()
367 		return scsw->cmd.dstat;  in scsw_dstat()
371  * scsw_cstat - return scsw cstat field
380 		return scsw->tm.cstat;  in scsw_cstat()
382 		return scsw->cmd.cstat;  in scsw_cstat()
386  * scsw_cmd_is_valid_key - check key field validity
389  * Return non-zero if the key field of the specified command mode scsw is
390  * valid, zero otherwise.
394 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_key()
398  * scsw_cmd_is_valid_sctl - check sctl field validity
401  * Return non-zero if the sctl field of the specified command mode scsw is
402  * valid, zero otherwise.
406 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_sctl()
410  * scsw_cmd_is_valid_eswf - check eswf field validity
413  * Return non-zero if the eswf field of the specified command mode scsw is
414  * valid, zero otherwise.
418 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);  in scsw_cmd_is_valid_eswf()
422  * scsw_cmd_is_valid_cc - check cc field validity
425  * Return non-zero if the cc field of the specified command mode scsw is
426  * valid, zero otherwise.
430 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&  in scsw_cmd_is_valid_cc()
431 	       (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);  in scsw_cmd_is_valid_cc()
435  * scsw_cmd_is_valid_fmt - check fmt field validity
438  * Return non-zero if the fmt field of the specified command mode scsw is
439  * valid, zero otherwise.
443 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_fmt()
447  * scsw_cmd_is_valid_pfch - check pfch field validity
450  * Return non-zero if the pfch field of the specified command mode scsw is
451  * valid, zero otherwise.
455 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_pfch()
459  * scsw_cmd_is_valid_isic - check isic field validity
462  * Return non-zero if the isic field of the specified command mode scsw is
463  * valid, zero otherwise.
467 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_isic()
471  * scsw_cmd_is_valid_alcc - check alcc field validity
474  * Return non-zero if the alcc field of the specified command mode scsw is
475  * valid, zero otherwise.
479 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_alcc()
483  * scsw_cmd_is_valid_ssi - check ssi field validity
486  * Return non-zero if the ssi field of the specified command mode scsw is
487  * valid, zero otherwise.
491 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);  in scsw_cmd_is_valid_ssi()
495  * scsw_cmd_is_valid_zcc - check zcc field validity
498  * Return non-zero if the zcc field of the specified command mode scsw is
499  * valid, zero otherwise.
503 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&  in scsw_cmd_is_valid_zcc()
504 	       (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);  in scsw_cmd_is_valid_zcc()
508  * scsw_cmd_is_valid_ectl - check ectl field validity
511  * Return non-zero if the ectl field of the specified command mode scsw is
512  * valid, zero otherwise.
517 	if (!(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND))  in scsw_cmd_is_valid_ectl()
521 	if (!(scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS))  in scsw_cmd_is_valid_ectl()
527 	if (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS)  in scsw_cmd_is_valid_ectl()
534  * scsw_cmd_is_valid_pno - check pno field validity
537  * Return non-zero if the pno field of the specified command mode scsw is
538  * valid, zero otherwise.
543 	if (!scsw->cmd.fctl)  in scsw_cmd_is_valid_pno()
547 	if (!(scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND))  in scsw_cmd_is_valid_pno()
553 	if (!(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS))  in scsw_cmd_is_valid_pno()
557 	if (scsw->cmd.actl & SCSW_ACTL_SUSPENDED)  in scsw_cmd_is_valid_pno()
564  * scsw_cmd_is_valid_fctl - check fctl field validity
567  * Return non-zero if the fctl field of the specified command mode scsw is
568  * valid, zero otherwise.
577  * scsw_cmd_is_valid_actl - check actl field validity
580  * Return non-zero if the actl field of the specified command mode scsw is
581  * valid, zero otherwise.
590  * scsw_cmd_is_valid_stctl - check stctl field validity
593  * Return non-zero if the stctl field of the specified command mode scsw is
594  * valid, zero otherwise.
603  * scsw_cmd_is_valid_dstat - check dstat field validity
606  * Return non-zero if the dstat field of the specified command mode scsw is
607  * valid, zero otherwise.
611 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&  in scsw_cmd_is_valid_dstat()
612 	       (scsw->cmd.cc != 3);  in scsw_cmd_is_valid_dstat()
616  * scsw_cmd_is_valid_cstat - check cstat field validity
619  * Return non-zero if the cstat field of the specified command mode scsw is
620  * valid, zero otherwise.
624 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&  in scsw_cmd_is_valid_cstat()
625 	       (scsw->cmd.cc != 3);  in scsw_cmd_is_valid_cstat()
629  * scsw_tm_is_valid_key - check key field validity
632  * Return non-zero if the key field of the specified transport mode scsw is
633  * valid, zero otherwise.
637 	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC);  in scsw_tm_is_valid_key()
641  * scsw_tm_is_valid_eswf - check eswf field validity
644  * Return non-zero if the eswf field of the specified transport mode scsw is
645  * valid, zero otherwise.
649 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);  in scsw_tm_is_valid_eswf()
653  * scsw_tm_is_valid_cc - check cc field validity
656  * Return non-zero if the cc field of the specified transport mode scsw is
657  * valid, zero otherwise.
661 	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) &&  in scsw_tm_is_valid_cc()
662 	       (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);  in scsw_tm_is_valid_cc()
666  * scsw_tm_is_valid_fmt - check fmt field validity
669  * Return non-zero if the fmt field of the specified transport mode scsw is
670  * valid, zero otherwise.
678  * scsw_tm_is_valid_x - check x field validity
681  * Return non-zero if the x field of the specified transport mode scsw is
682  * valid, zero otherwise.
690  * scsw_tm_is_valid_q - check q field validity
693  * Return non-zero if the q field of the specified transport mode scsw is
694  * valid, zero otherwise.
702  * scsw_tm_is_valid_ectl - check ectl field validity
705  * Return non-zero if the ectl field of the specified transport mode scsw is
706  * valid, zero otherwise.
711 	if (!(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND))  in scsw_tm_is_valid_ectl()
715 	if (!(scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS))  in scsw_tm_is_valid_ectl()
721 	if (scsw->tm.stctl & SCSW_STCTL_INTER_STATUS)  in scsw_tm_is_valid_ectl()
728  * scsw_tm_is_valid_pno - check pno field validity
731  * Return non-zero if the pno field of the specified transport mode scsw is
732  * valid, zero otherwise.
737 	if (!scsw->tm.fctl)  in scsw_tm_is_valid_pno()
741 	if (!(scsw->tm.stctl & SCSW_STCTL_STATUS_PEND))  in scsw_tm_is_valid_pno()
747 	if (!(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS))  in scsw_tm_is_valid_pno()
751 	if (scsw->tm.actl & SCSW_ACTL_SUSPENDED)  in scsw_tm_is_valid_pno()
758  * scsw_tm_is_valid_fctl - check fctl field validity
761  * Return non-zero if the fctl field of the specified transport mode scsw is
762  * valid, zero otherwise.
771  * scsw_tm_is_valid_actl - check actl field validity
774  * Return non-zero if the actl field of the specified transport mode scsw is
775  * valid, zero otherwise.
784  * scsw_tm_is_valid_stctl - check stctl field validity
787  * Return non-zero if the stctl field of the specified transport mode scsw is
788  * valid, zero otherwise.
797  * scsw_tm_is_valid_dstat - check dstat field validity
800  * Return non-zero if the dstat field of the specified transport mode scsw is
801  * valid, zero otherwise.
805 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&  in scsw_tm_is_valid_dstat()
806 	       (scsw->tm.cc != 3);  in scsw_tm_is_valid_dstat()
810  * scsw_tm_is_valid_cstat - check cstat field validity
813  * Return non-zero if the cstat field of the specified transport mode scsw is
814  * valid, zero otherwise.
818 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&  in scsw_tm_is_valid_cstat()
819 	       (scsw->tm.cc != 3);  in scsw_tm_is_valid_cstat()
823  * scsw_tm_is_valid_fcxs - check fcxs field validity
826  * Return non-zero if the fcxs field of the specified transport mode scsw is
827  * valid, zero otherwise.
835  * scsw_tm_is_valid_schxs - check schxs field validity
838  * Return non-zero if the schxs field of the specified transport mode scsw is
839  * valid, zero otherwise.
843 	return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK |  in scsw_tm_is_valid_schxs()
850  * scsw_is_valid_actl - check actl field validity
853  * Return non-zero if the actl field of the specified scsw is valid,
855  * Return zero if the field does not contain a valid value.
866  * scsw_is_valid_cc - check cc field validity
869  * Return non-zero if the cc field of the specified scsw is valid,
871  * Return zero if the field does not contain a valid value.
882  * scsw_is_valid_cstat - check cstat field validity
885  * Return non-zero if the cstat field of the specified scsw is valid,
887  * Return zero if the field does not contain a valid value.
898  * scsw_is_valid_dstat - check dstat field validity
901  * Return non-zero if the dstat field of the specified scsw is valid,
903  * Return zero if the field does not contain a valid value.
914  * scsw_is_valid_ectl - check ectl field validity
917  * Return non-zero if the ectl field of the specified scsw is valid,
919  * Return zero if the field does not contain a valid value.
930  * scsw_is_valid_eswf - check eswf field validity
933  * Return non-zero if the eswf field of the specified scsw is valid,
935  * Return zero if the field does not contain a valid value.
946  * scsw_is_valid_fctl - check fctl field validity
949  * Return non-zero if the fctl field of the specified scsw is valid,
951  * Return zero if the field does not contain a valid value.
962  * scsw_is_valid_key - check key field validity
965  * Return non-zero if the key field of the specified scsw is valid,
967  * Return zero if the field does not contain a valid value.
978  * scsw_is_valid_pno - check pno field validity
981  * Return non-zero if the pno field of the specified scsw is valid,
983  * Return zero if the field does not contain a valid value.
994  * scsw_is_valid_stctl - check stctl field validity
997  * Return non-zero if the stctl field of the specified scsw is valid,
999  * Return zero if the field does not contain a valid value.
1010  * scsw_cmd_is_solicited - check for solicited scsw
1013  * Return non-zero if the command mode scsw indicates that the associated
1014  * status condition is solicited, zero if it is unsolicited.
1018 	return (scsw->cmd.cc != 0) || (scsw->cmd.stctl !=  in scsw_cmd_is_solicited()
1023  * scsw_tm_is_solicited - check for solicited scsw
1026  * Return non-zero if the transport mode scsw indicates that the associated
1027  * status condition is solicited, zero if it is unsolicited.
1031 	return (scsw->tm.cc != 0) || (scsw->tm.stctl !=  in scsw_tm_is_solicited()
1036  * scsw_is_solicited - check for solicited scsw
1039  * Return non-zero if the transport or command mode scsw indicates that the
1040  * associated status condition is solicited, zero if it is unsolicited.