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Searched refs:ccw (Results 1 – 25 of 93) sorted by relevance

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/openbmc/linux/drivers/s390/char/
H A Dtape.h309 return ccw + 1; in tape_ccw_cc()
316 ccw->flags = 0; in tape_ccw_end()
319 return ccw + 1; in tape_ccw_end()
326 ccw->flags = 0; in tape_ccw_cmd()
327 ccw->count = 0; in tape_ccw_cmd()
328 ccw->cda = (__u32)(addr_t) &ccw->cmd_code; in tape_ccw_cmd()
339 ccw->cda = (__u32)(addr_t) &ccw->cmd_code; in tape_ccw_repeat()
340 ccw++; in tape_ccw_repeat()
342 return ccw; in tape_ccw_repeat()
351 return ccw++; in tape_ccw_cc_idal()
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H A Dtape_std.c278 ccw = tape_ccw_repeat(ccw, FORSPACEFILE, mt_count); in tape_std_mtfsf()
279 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtfsf()
303 ccw = tape_ccw_repeat(ccw, FORSPACEBLOCK, mt_count); in tape_std_mtfsr()
304 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtfsr()
336 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtbsr()
365 ccw = tape_ccw_repeat(ccw, WRITETAPEMARK, mt_count); in tape_std_mtweof()
366 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtweof()
391 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtbsfm()
416 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtbsf()
446 ccw = tape_ccw_repeat(ccw, FORSPACEFILE, mt_count); in tape_std_mtfsfm()
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H A Draw3270.c164 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_alloc()
187 rq->ccw.cmd_code = 0; in raw3270_request_reset()
188 rq->ccw.count = 0; in raw3270_request_reset()
190 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_reset()
202 rq->ccw.cmd_code = cmd; in raw3270_request_set_cmd()
214 rq->ccw.count += size; in raw3270_request_add_data()
224 rq->ccw.cda = __pa(data); in raw3270_request_set_data()
225 rq->ccw.count = size; in raw3270_request_set_data()
234 rq->ccw.cda = __pa(ib->data); in raw3270_request_set_idal()
235 rq->ccw.count = ib->size; in raw3270_request_set_idal()
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H A Dcon3215.c147 struct ccw1 *ccw; in raw3215_mk_read_req() local
159 ccw = req->ccws; in raw3215_mk_read_req()
162 ccw->count = 160; in raw3215_mk_read_req()
175 struct ccw1 *ccw; in raw3215_mk_write_req() local
192 ccw = req->ccws; in raw3215_mk_write_req()
226 ccw->count = count; in raw3215_mk_write_req()
229 ccw++; in raw3215_mk_write_req()
236 if (ccw > req->ccws) in raw3215_mk_write_req()
239 ccw->flags = 0; in raw3215_mk_write_req()
240 ccw->cda = 0; in raw3215_mk_write_req()
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/openbmc/linux/drivers/s390/virtio/
H A Dvirtio_ccw.c490 if (!ccw) in virtio_ccw_del_vqs()
498 ccw_device_dma_free(vcdev->cdev, ccw, sizeof(*ccw)); in virtio_ccw_del_vqs()
666 if (!ccw) in virtio_ccw_find_vqs()
742 if (!ccw) in virtio_ccw_reset()
766 if (!ccw) in virtio_ccw_get_features()
829 if (!ccw) in virtio_ccw_finalize_features()
883 if (!ccw) in virtio_ccw_get_config()
923 if (!ccw) in virtio_ccw_set_config()
960 if (!ccw) in virtio_ccw_get_status()
987 if (!ccw) in virtio_ccw_set_status()
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/openbmc/qemu/hw/s390x/
H A Dmeson.build5 'ccw-device.c',
10 's390-ccw.c',
32 s390x_ss.add(when: 'CONFIG_TERMINAL3270', if_true: files('3270-ccw.c'))
36 virtio_ss.add(files('virtio-ccw.c'))
38 virtio_ss.add(when: 'CONFIG_VIRTIO_BLK', if_true: files('virtio-ccw-blk.c'))
41 virtio_ss.add(when: 'CONFIG_VIRTIO_NET', if_true: files('virtio-ccw-net.c'))
42 virtio_ss.add(when: 'CONFIG_VIRTIO_RNG', if_true: files('virtio-ccw-rng.c'))
46 virtio_ss.add(when: 'CONFIG_VIRTIO_9P', if_true: files('virtio-ccw-9p.c'))
48 virtio_ss.add(when: 'CONFIG_VHOST_SCSI', if_true: files('vhost-scsi-ccw.c'))
58 if_true: [files('virtio-ccw-gpu.c'), pixman])
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H A Dvirtio-ccw.c288 if (!ccw.cda) { in virtio_ccw_handle_set_vq()
337 check_len = !((ccw.flags & CCW_FLAG_SLI) && !(ccw.flags & CCW_FLAG_DC)); in virtio_ccw_cb()
375 if (!ccw.cda) { in virtio_ccw_cb()
422 if (!ccw.cda) { in virtio_ccw_cb()
467 if (!ccw.cda) { in virtio_ccw_cb()
485 if (!ccw.cda) { in virtio_ccw_cb()
506 if (!ccw.cda) { in virtio_ccw_cb()
526 if (!ccw.cda) { in virtio_ccw_cb()
572 if (!ccw.cda) { in virtio_ccw_cb()
596 if (!ccw.cda) { in virtio_ccw_cb()
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H A D3270-ccw.c22 static int handle_payload_3270_read(EmulatedCcw3270Device *dev, CCW1 *ccw) in handle_payload_3270_read() argument
28 if (!ccw->cda) { in handle_payload_3270_read()
36 ccw_dev->sch->curr_status.scsw.count = ccw->count - len; in handle_payload_3270_read()
42 static int handle_payload_3270_write(EmulatedCcw3270Device *dev, CCW1 *ccw) in handle_payload_3270_write() argument
48 if (!ccw->cda) { in handle_payload_3270_write()
52 len = ck->write_payload_3270(dev, ccw->cmd_code); in handle_payload_3270_write()
58 ccw_dev->sch->curr_status.scsw.count = ccw->count - len; in handle_payload_3270_write()
62 static int emulated_ccw_3270_cb(SubchDev *sch, CCW1 ccw) in emulated_ccw_3270_cb() argument
67 switch (ccw.cmd_code) { in emulated_ccw_3270_cb()
72 rc = handle_payload_3270_write(dev, &ccw); in emulated_ccw_3270_cb()
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/openbmc/linux/drivers/s390/block/
H A Ddasd_fba.c84 ccw->flags = 0; in define_extent()
85 ccw->count = 16; in define_extent()
104 ccw->flags = 0; in locate_record()
105 ccw->count = 8; in locate_record()
254 ccw->count = 0; in ccw_write_no_data()
521 ccw++; in dasd_fba_build_cp_regular()
538 ccw++; in dasd_fba_build_cp_regular()
582 ccw++; in dasd_fba_free_cp()
584 ccw++; in dasd_fba_free_cp()
590 ccw++; in dasd_fba_free_cp()
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H A Ddasd_eckd.c1558 ccw++; in dasd_eckd_read_features()
1627 ccw++; in dasd_eckd_read_vol_info()
1811 ccw++; in dasd_eckd_read_ext_pool_info()
2269 ccw++; in dasd_eckd_analysis_ccw()
2654 ccw++; in dasd_eckd_build_check()
4912 ccw++; in dasd_eckd_free_cp()
5318 ccw++; in dasd_eckd_performance()
5467 ccw++; in dasd_symm_io()
5947 ccw++; in dasd_eckd_read_message_buffer()
6035 ccw++; in dasd_eckd_query_host_access()
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H A Ddasd_3990_erp.c201 struct ccw1 *ccw; in dasd_3990_erp_DCTL() local
222 ccw->count = 4; in dasd_3990_erp_DCTL()
1710 ccw->count = 16; in dasd_3990_erp_action_1B_32()
1714 ccw++; in dasd_3990_erp_action_1B_32()
1718 ccw->count = 16; in dasd_3990_erp_action_1B_32()
1722 ccw++; in dasd_3990_erp_action_1B_32()
1724 ccw->cda = cpa; in dasd_3990_erp_action_1B_32()
1769 struct ccw1 *ccw; in dasd_3990_update_1B() local
1851 ccw->cda = cpa; in dasd_3990_update_1B()
2374 struct ccw1 *ccw; in dasd_3990_erp_add_erp() local
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/openbmc/linux/drivers/s390/cio/
H A Dvfio_ccw_cp.c264 if (ccw->count == 0) in ccw_does_data_transfer()
268 if (ccw_is_noop(ccw)) in ccw_does_data_transfer()
280 if (ccw_is_read(ccw) || ccw_is_read_backward(ccw)) in ccw_does_data_transfer()
356 if (ccw_is_tic(ccw)) in ccwchain_cda_free()
391 if (!ccw_is_chain(ccw) && !is_tic_within_range(ccw, iova, cnt)) in ccwchain_calc_length()
394 ccw++; in ccwchain_calc_length()
569 if (ccw->count) in ccw_count_idaws()
570 bytes = ccw->count; in ccw_count_idaws()
586 iova = ccw->cda; in ccw_count_idaws()
668 ccw->cda = 0; in ccwchain_fetch_ccw()
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/openbmc/linux/drivers/dma/
H A Dmxs-dma.c404 if (!mxs_chan->ccw) { in mxs_dma_alloc_chan_resources()
506 ccw = &mxs_chan->ccw[idx - 1]; in mxs_dma_prep_slave_sg()
507 ccw->next = mxs_chan->ccw_phys + sizeof(*ccw) * idx; in mxs_dma_prep_slave_sg()
516 ccw = &mxs_chan->ccw[idx++]; in mxs_dma_prep_slave_sg()
522 ccw->bits = 0; in mxs_dma_prep_slave_sg()
541 ccw = &mxs_chan->ccw[idx++]; in mxs_dma_prep_slave_sg()
543 ccw->next = mxs_chan->ccw_phys + sizeof(*ccw) * idx; in mxs_dma_prep_slave_sg()
547 ccw->bits = 0; in mxs_dma_prep_slave_sg()
605 struct mxs_dma_ccw *ccw = &mxs_chan->ccw[i]; in mxs_dma_prep_dma_cyclic() local
610 ccw->next = mxs_chan->ccw_phys + sizeof(*ccw) * (i + 1); in mxs_dma_prep_dma_cyclic()
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/openbmc/linux/arch/s390/include/asm/
H A Didals.h88 if (ccw->flags & CCW_FLAG_IDA) in set_normalized_cda()
97 ccw->flags |= CCW_FLAG_IDA; in set_normalized_cda()
100 ccw->cda = (__u32)(unsigned long) vaddr; in set_normalized_cda()
108 clear_normalized_cda(struct ccw1 * ccw) in clear_normalized_cda() argument
110 if (ccw->flags & CCW_FLAG_IDA) { in clear_normalized_cda()
112 ccw->flags &= ~CCW_FLAG_IDA; in clear_normalized_cda()
114 ccw->cda = 0; in clear_normalized_cda()
196 ccw->cda = (u32)(addr_t) ib->data; in idal_buffer_set_cda()
197 ccw->flags |= CCW_FLAG_IDA; in idal_buffer_set_cda()
200 ccw->cda = (u32)(addr_t) ib->data[0]; in idal_buffer_set_cda()
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/openbmc/linux/Documentation/driver-api/
H A Ds390-drivers.rst39 device on the ccw bus and are described below.
40 * I/O subchannels bound to the vfio-ccw driver. See
41 Documentation/arch/s390/vfio-ccw.rst.
47 The ccw bus
50 The ccw bus typically contains the majority of devices available to a
51 s390 system. Named after the channel command word (ccw), the basic
52 command structure used to address its devices, the ccw bus contains
56 subchannel directly, but only via the I/O device on the ccw bus, the ccw
70 ccw devices
75 provides the abstractions of ccw devices and ccw device drivers.
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/openbmc/qemu/docs/devel/
H A Ds390-dasd-ipl.rst9 1. A READ IPL ccw is constructed in memory location ``0x0``.
10 This ccw, by definition, reads the IPL1 record which is located on the disk
11 at cylinder 0 track 0 record 1. Note that the chain flag is on in this ccw
12 so when it is complete another ccw will be fetched and executed from memory
17 information: ``[psw][read ccw][tic ccw]``. When the machine executes the Read
18 IPL ccw it read the 24-bytes of IPL1 to be read into memory starting at
20 ccw and a tic ccw is automatically executed because of the chain flag from
21 the original READ IPL ccw. The read ccw will read the IPL2 data into memory
29 The TIC ccw instruction at the end of the IPL1 channel program will begin
77 non-prefetch of ccw data.
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/openbmc/qemu/target/s390x/kvm/
H A Dpv.h24 static S390CcwMachineState *ccw; in s390_is_pv() local
27 if (ccw) { in s390_is_pv()
28 return ccw->pv; in s390_is_pv()
37 ccw = S390_CCW_MACHINE(obj); in s390_is_pv()
38 return ccw->pv; in s390_is_pv()
/openbmc/linux/arch/s390/kernel/
H A Dipl_vmparm.c16 if ((ipb->ccw.vm_flags & IPL_PB0_CCW_VM_FLAG_VP) && in ipl_block_get_ascii_vmparm()
17 (ipb->ccw.vm_parm_len > 0)) { in ipl_block_get_ascii_vmparm()
19 len = min_t(size_t, size - 1, ipb->ccw.vm_parm_len); in ipl_block_get_ascii_vmparm()
20 memcpy(dest, ipb->ccw.vm_parm, len); in ipl_block_get_ascii_vmparm()
/openbmc/linux/drivers/s390/net/
H A Dctcm_mpc.c1696 ch->ccw[8].count = 0; in mpc_action_side_xid()
1697 ch->ccw[8].cda = 0x00; in mpc_action_side_xid()
1717 ch->ccw[10].count = XID2_LENGTH; in mpc_action_side_xid()
1727 ch->ccw[12].count = XID2_LENGTH; in mpc_action_side_xid()
1734 ch->ccw[9].cmd_code = CCW_CMD_READ; in mpc_action_side_xid()
1741 ch->ccw[10].count = XID2_LENGTH; in mpc_action_side_xid()
1755 ch->ccw[12].count = XID2_LENGTH; in mpc_action_side_xid()
1765 ch->ccw[13].count = 4; in mpc_action_side_xid()
1768 ch->ccw[14].flags = CCW_FLAG_SLI; in mpc_action_side_xid()
1769 ch->ccw[14].count = 0; in mpc_action_side_xid()
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H A Dctcm_fsms.c606 ch->ccw[1].count = 0; in ctcm_chx_start()
610 ch->ccw[1].count = 0; in ctcm_chx_start()
622 ch->ccw[0].count = 0; in ctcm_chx_start()
623 ch->ccw[0].cda = 0; in ctcm_chx_start()
625 ch->ccw[2].flags = CCW_FLAG_SLI; in ctcm_chx_start()
626 ch->ccw[2].count = 0; in ctcm_chx_start()
627 ch->ccw[2].cda = 0; in ctcm_chx_start()
628 memcpy(&ch->ccw[3], &ch->ccw[0], sizeof(struct ccw1) * 3); in ctcm_chx_start()
629 ch->ccw[4].cda = 0; in ctcm_chx_start()
1020 ch->ccw[4].count = skb->len; in ctcm_chx_txretry()
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/openbmc/qemu/pc-bios/s390-ccw/
H A Ddasd-ipl.c33 static bool is_read_tic_ccw_chain(Ccw0 *ccw) in is_read_tic_ccw_chain() argument
35 Ccw0 *next_ccw = ccw + 1; in is_read_tic_ccw_chain()
37 return ((ccw->cmd_code == CCW_CMD_DASD_READ || in is_read_tic_ccw_chain()
38 ccw->cmd_code == CCW_CMD_DASD_READ_MT) && in is_read_tic_ccw_chain()
39 ccw->chain && next_ccw->cmd_code == CCW_CMD_TIC); in is_read_tic_ccw_chain()
137 Ccw0 *ccw = u32toptr(ipl2_addr); in check_ipl2() local
142 if (ccw->cmd_code == 0x00) { in check_ipl2()
/openbmc/linux/drivers/crypto/nx/
H A Dnx-common-powernv.c461 u32 ccw; in nx842_exec_icswx() local
482 ccw = 0; in nx842_exec_icswx()
483 ccw = SET_FIELD(CCW_CT, ccw, nx842_ct); in nx842_exec_icswx()
484 ccw = SET_FIELD(CCW_CI_842, ccw, 0); /* use 0 for hw auto-selection */ in nx842_exec_icswx()
485 ccw = SET_FIELD(CCW_FC_842, ccw, fc); in nx842_exec_icswx()
490 ret = icswx(cpu_to_be32(ccw), crb); in nx842_exec_icswx()
493 (unsigned int)ccw, in nx842_exec_icswx()
565 u32 ccw; in nx842_exec_vas() local
579 ccw = 0; in nx842_exec_vas()
580 ccw = SET_FIELD(CCW_FC_842, ccw, fc); in nx842_exec_vas()
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/openbmc/qemu/docs/system/
H A Dtarget-s390x.rst8 ``s390-ccw-virtio``, is supported (with versioning for compatibility
20 z/VM; virtio devices (especially using virtio-ccw) make up the bulk of
21 the available devices. Passthrough of host devices via vfio-pci, vfio-ccw,
28 s390x/vfio-ccw
/openbmc/qemu/docs/system/s390x/
H A Dcss.rst5 functionless) channel paths, and channel devices (virtio-ccw, 3270, and
6 devices passed via vfio-ccw). It supports multiple subchannel sets (MSS) and
40 -device virtio-net-ccw
51 -device virtio-rng-ccw,devno=fe.0.0042
61 -device virtio-gpu-ccw,devno=fe.2.1111
71 -device virtio-mouse-ccw,devno=2.0.2222
80 -device virtio-keyboard-ccw,devno=0.0.1234
/openbmc/linux/Documentation/arch/s390/
H A Dvfio-ccw.rst2 vfio-ccw: the basic infrastructure
43 Motivation of vfio-ccw
86 Back to vfio-ccw, in short:
99 Physical vfio ccw device and its child mdev
175 2. Create a mediated vfio ccw device.
190 vfio-ccw I/O region
246 vfio-ccw cmd region
285 vfio-ccw schib region
301 vfio-ccw crw region
321 vfio-ccw operation details
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