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Searched refs:ccw (Results 1 – 25 of 49) sorted by relevance

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/Linux-v5.15/drivers/s390/virtio/
Dvirtio_ccw.c321 struct ccw1 *ccw, __u32 intparm) in ccw_io_helper() argument
330 ret = ccw_device_start(vcdev->cdev, ccw, intparm, 0, 0); in ccw_io_helper()
346 struct ccw1 *ccw) in virtio_ccw_drop_indicator() argument
361 ccw->cmd_code = CCW_CMD_SET_IND_ADAPTER; in virtio_ccw_drop_indicator()
362 ccw->count = sizeof(*thinint_area); in virtio_ccw_drop_indicator()
363 ccw->cda = (__u32)(unsigned long) thinint_area; in virtio_ccw_drop_indicator()
371 ccw->cmd_code = CCW_CMD_SET_IND; in virtio_ccw_drop_indicator()
372 ccw->count = sizeof(indicators(vcdev)); in virtio_ccw_drop_indicator()
373 ccw->cda = (__u32)(unsigned long) indicatorp; in virtio_ccw_drop_indicator()
377 ccw->flags = 0; in virtio_ccw_drop_indicator()
[all …]
/Linux-v5.15/drivers/s390/char/
Dtape.h303 tape_ccw_cc(struct ccw1 *ccw, __u8 cmd_code, __u16 memsize, void *cda) in tape_ccw_cc() argument
305 ccw->cmd_code = cmd_code; in tape_ccw_cc()
306 ccw->flags = CCW_FLAG_CC; in tape_ccw_cc()
307 ccw->count = memsize; in tape_ccw_cc()
308 ccw->cda = (__u32)(addr_t) cda; in tape_ccw_cc()
309 return ccw + 1; in tape_ccw_cc()
313 tape_ccw_end(struct ccw1 *ccw, __u8 cmd_code, __u16 memsize, void *cda) in tape_ccw_end() argument
315 ccw->cmd_code = cmd_code; in tape_ccw_end()
316 ccw->flags = 0; in tape_ccw_end()
317 ccw->count = memsize; in tape_ccw_end()
[all …]
Dtape_std.c270 struct ccw1 *ccw; in tape_std_mtfsf() local
277 ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, in tape_std_mtfsf()
279 ccw = tape_ccw_repeat(ccw, FORSPACEFILE, mt_count); in tape_std_mtfsf()
280 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtfsf()
294 struct ccw1 *ccw; in tape_std_mtfsr() local
302 ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, in tape_std_mtfsr()
304 ccw = tape_ccw_repeat(ccw, FORSPACEBLOCK, mt_count); in tape_std_mtfsr()
305 ccw = tape_ccw_end(ccw, NOP, 0, NULL); in tape_std_mtfsr()
326 struct ccw1 *ccw; in tape_std_mtbsr() local
334 ccw = tape_ccw_cc(request->cpaddr, MODE_SET_DB, 1, in tape_std_mtbsr()
[all …]
Draw3270.c159 rq->ccw.cda = __pa(rq->buffer); in raw3270_request_alloc()
160 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_alloc()
182 rq->ccw.cmd_code = 0; in raw3270_request_reset()
183 rq->ccw.count = 0; in raw3270_request_reset()
184 rq->ccw.cda = __pa(rq->buffer); in raw3270_request_reset()
185 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_reset()
196 rq->ccw.cmd_code = cmd; in raw3270_request_set_cmd()
205 if (size + rq->ccw.count > rq->size) in raw3270_request_add_data()
207 memcpy(rq->buffer + rq->ccw.count, data, size); in raw3270_request_add_data()
208 rq->ccw.count += size; in raw3270_request_add_data()
[all …]
Dcon3215.c146 struct ccw1 *ccw; in raw3215_mk_read_req() local
158 ccw = req->ccws; in raw3215_mk_read_req()
159 ccw->cmd_code = 0x0A; /* read inquiry */ in raw3215_mk_read_req()
160 ccw->flags = 0x20; /* ignore incorrect length */ in raw3215_mk_read_req()
161 ccw->count = 160; in raw3215_mk_read_req()
162 ccw->cda = (__u32) __pa(raw->inbuf); in raw3215_mk_read_req()
174 struct ccw1 *ccw; in raw3215_mk_write_req() local
191 ccw = req->ccws; in raw3215_mk_write_req()
217 if (ccw > req->ccws) in raw3215_mk_write_req()
218 ccw[-1].flags |= 0x40; /* use command chaining */ in raw3215_mk_write_req()
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/Linux-v5.15/drivers/s390/block/
Ddasd_fba.c55 MODULE_DEVICE_TABLE(ccw, dasd_fba_ids);
80 define_extent(struct ccw1 * ccw, struct DE_fba_data *data, int rw, in define_extent() argument
83 ccw->cmd_code = DASD_FBA_CCW_DEFINE_EXTENT; in define_extent()
84 ccw->flags = 0; in define_extent()
85 ccw->count = 16; in define_extent()
86 ccw->cda = (__u32) __pa(data); in define_extent()
100 locate_record(struct ccw1 * ccw, struct LO_fba_data *data, int rw, in locate_record() argument
103 ccw->cmd_code = DASD_FBA_CCW_LOCATE; in locate_record()
104 ccw->flags = 0; in locate_record()
105 ccw->count = 8; in locate_record()
[all …]
Ddasd_eckd.c74 MODULE_DEVICE_TABLE(ccw, dasd_eckd_ids);
87 struct ccw1 ccw; member
94 struct ccw1 ccw[2]; member
110 struct ccw1 ccw; member
250 static int set_timestamp(struct ccw1 *ccw, struct DE_eckd_data *data, in set_timestamp() argument
269 if (ccw) { in set_timestamp()
270 ccw->count = sizeof(struct DE_eckd_data); in set_timestamp()
271 ccw->flags |= CCW_FLAG_SLI; in set_timestamp()
278 define_extent(struct ccw1 *ccw, struct DE_eckd_data *data, unsigned int trk, in define_extent() argument
287 if (ccw) { in define_extent()
[all …]
Ddasd_3990_erp.c201 struct ccw1 *ccw; in dasd_3990_erp_DCTL() local
219 ccw = dctl_cqr->cpaddr; in dasd_3990_erp_DCTL()
220 memset(ccw, 0, sizeof(struct ccw1)); in dasd_3990_erp_DCTL()
221 ccw->cmd_code = CCW_CMD_DCTL; in dasd_3990_erp_DCTL()
222 ccw->count = 4; in dasd_3990_erp_DCTL()
223 ccw->cda = (__u32)(addr_t) DCTL_data; in dasd_3990_erp_DCTL()
1613 struct ccw1 *ccw, *oldccw; in dasd_3990_erp_action_1B_32() local
1707 ccw = erp->cpaddr; in dasd_3990_erp_action_1B_32()
1708 memset(ccw, 0, sizeof(struct ccw1)); in dasd_3990_erp_action_1B_32()
1709 ccw->cmd_code = DASD_ECKD_CCW_DEFINE_EXTENT; in dasd_3990_erp_action_1B_32()
[all …]
Ddasd_alias.c420 struct ccw1 *ccw; in read_unit_address_configuration() local
442 ccw = cqr->cpaddr; in read_unit_address_configuration()
443 ccw->cmd_code = DASD_ECKD_CCW_PSF; in read_unit_address_configuration()
444 ccw->count = sizeof(struct dasd_psf_prssd_data); in read_unit_address_configuration()
445 ccw->flags |= CCW_FLAG_CC; in read_unit_address_configuration()
446 ccw->cda = (__u32)(addr_t) prssdp; in read_unit_address_configuration()
451 ccw++; in read_unit_address_configuration()
452 ccw->cmd_code = DASD_ECKD_CCW_RSSD; in read_unit_address_configuration()
453 ccw->count = sizeof(*(lcu->uac)); in read_unit_address_configuration()
454 ccw->cda = (__u32)(addr_t) lcu->uac; in read_unit_address_configuration()
[all …]
Ddasd_eer.c461 struct ccw1 *ccw; in dasd_eer_enable() local
490 ccw = cqr->cpaddr; in dasd_eer_enable()
491 ccw->cmd_code = DASD_ECKD_CCW_SNSS; in dasd_eer_enable()
492 ccw->count = SNSS_DATA_SIZE; in dasd_eer_enable()
493 ccw->flags = 0; in dasd_eer_enable()
494 ccw->cda = (__u32)(addr_t) cqr->data; in dasd_eer_enable()
/Linux-v5.15/drivers/dma/
Dmxs-dma.c115 struct mxs_dma_ccw *ccw; member
402 mxs_chan->ccw = dma_alloc_coherent(mxs_dma->dma_device.dev, in mxs_dma_alloc_chan_resources()
405 if (!mxs_chan->ccw) { in mxs_dma_alloc_chan_resources()
433 mxs_chan->ccw, mxs_chan->ccw_phys); in mxs_dma_alloc_chan_resources()
448 mxs_chan->ccw, mxs_chan->ccw_phys); in mxs_dma_free_chan_resources()
482 struct mxs_dma_ccw *ccw; in mxs_dma_prep_slave_sg() local
507 ccw = &mxs_chan->ccw[idx - 1]; in mxs_dma_prep_slave_sg()
508 ccw->next = mxs_chan->ccw_phys + sizeof(*ccw) * idx; in mxs_dma_prep_slave_sg()
509 ccw->bits |= CCW_CHAIN; in mxs_dma_prep_slave_sg()
510 ccw->bits &= ~CCW_IRQ; in mxs_dma_prep_slave_sg()
[all …]
/Linux-v5.15/drivers/s390/cio/
Dvfio_ccw_cp.c258 static inline int ccw_does_data_transfer(struct ccw1 *ccw) in ccw_does_data_transfer() argument
261 if (ccw->count == 0) in ccw_does_data_transfer()
265 if (ccw_is_noop(ccw)) in ccw_does_data_transfer()
269 if (!ccw_is_skip(ccw)) in ccw_does_data_transfer()
277 if (ccw_is_read(ccw) || ccw_is_read_backward(ccw)) in ccw_does_data_transfer()
280 if (ccw_is_sense(ccw)) in ccw_does_data_transfer()
306 static inline int is_tic_within_range(struct ccw1 *ccw, u32 head, int len) in is_tic_within_range() argument
308 if (!ccw_is_tic(ccw)) in is_tic_within_range()
311 return is_cpa_within_range(ccw->cda, head, len); in is_tic_within_range()
350 struct ccw1 *ccw = chain->ch_ccw + idx; in ccwchain_cda_free() local
[all …]
Dqdio_main.c1008 irq_ptr->ccw.cmd_code = irq_ptr->equeue.cmd; in qdio_establish()
1009 irq_ptr->ccw.flags = CCW_FLAG_SLI; in qdio_establish()
1010 irq_ptr->ccw.count = irq_ptr->equeue.count; in qdio_establish()
1011 irq_ptr->ccw.cda = (u32) virt_to_phys(irq_ptr->qdr); in qdio_establish()
1016 rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ESTABLISH, 0, 0); in qdio_establish()
1082 irq_ptr->ccw.cmd_code = irq_ptr->aqueue.cmd; in qdio_activate()
1083 irq_ptr->ccw.flags = CCW_FLAG_SLI; in qdio_activate()
1084 irq_ptr->ccw.count = irq_ptr->aqueue.count; in qdio_activate()
1085 irq_ptr->ccw.cda = 0; in qdio_activate()
1090 rc = ccw_device_start(cdev, &irq_ptr->ccw, QDIO_DOING_ACTIVATE, in qdio_activate()
/Linux-v5.15/arch/s390/include/asm/
Didals.h71 set_normalized_cda(struct ccw1 * ccw, void *vaddr) in set_normalized_cda() argument
76 if (ccw->flags & CCW_FLAG_IDA) in set_normalized_cda()
78 nridaws = idal_nr_words(vaddr, ccw->count); in set_normalized_cda()
84 idal_create_words(idal, vaddr, ccw->count); in set_normalized_cda()
85 ccw->flags |= CCW_FLAG_IDA; in set_normalized_cda()
88 ccw->cda = (__u32)(unsigned long) vaddr; in set_normalized_cda()
96 clear_normalized_cda(struct ccw1 * ccw) in clear_normalized_cda() argument
98 if (ccw->flags & CCW_FLAG_IDA) { in clear_normalized_cda()
99 kfree((void *)(unsigned long) ccw->cda); in clear_normalized_cda()
100 ccw->flags &= ~CCW_FLAG_IDA; in clear_normalized_cda()
[all …]
Dipl.h24 struct ipl_pb0_ccw ccw; member
79 } ccw; member
/Linux-v5.15/Documentation/driver-api/
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/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
73 Devices that want to initiate channel I/O need to attach to the ccw bus.
[all …]
/Linux-v5.15/drivers/s390/net/
Dctcm_mpc.c1512 rc = ccw_device_start(ch->cdev, &ch->ccw[15], 0, 0xff, 0); in mpc_action_send_discontact()
1694 ch->ccw[8].flags = CCW_FLAG_SLI | CCW_FLAG_CC; in mpc_action_side_xid()
1695 ch->ccw[8].count = 0; in mpc_action_side_xid()
1696 ch->ccw[8].cda = 0x00; in mpc_action_side_xid()
1707 ch->ccw[9].cmd_code = CCW_CMD_WRITE; in mpc_action_side_xid()
1708 ch->ccw[9].flags = CCW_FLAG_SLI | CCW_FLAG_CC; in mpc_action_side_xid()
1709 ch->ccw[9].count = TH_HEADER_LENGTH; in mpc_action_side_xid()
1710 ch->ccw[9].cda = virt_to_phys(ch->xid_th); in mpc_action_side_xid()
1714 ch->ccw[10].cmd_code = CCW_CMD_WRITE; in mpc_action_side_xid()
1715 ch->ccw[10].flags = CCW_FLAG_SLI | CCW_FLAG_CC; in mpc_action_side_xid()
[all …]
Dctcm_fsms.c279 clear_normalized_cda(&ch->ccw[4]); in chx_txdone()
307 ch->ccw[1].count = ch->trans_skb->len; in chx_txdone()
310 rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); in chx_txdone()
418 ch->ccw[1].count = ch->max_bufsize; in chx_rx()
419 rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); in chx_rx()
475 ch->ccw[1].count = 2; /* Transfer only length */ in chx_firstio()
479 rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); in chx_firstio()
525 ch->ccw[1].count = ch->max_bufsize; in chx_rxidle()
527 rc = ccw_device_start(ch->cdev, &ch->ccw[0], 0, 0xff, 0); in chx_rxidle()
563 CTCM_CCW_DUMP((char *)&ch->ccw[6], sizeof(struct ccw1) * 2); in ctcm_chx_setmode()
[all …]
Dctcm_main.c220 clear_normalized_cda(&ch->ccw[4]); in channel_remove()
222 clear_normalized_cda(&ch->ccw[1]); in channel_remove()
230 kfree(ch->ccw); in channel_remove()
384 clear_normalized_cda(&ch->ccw[1]); in ctcm_ch_alloc_buffer()
395 ch->ccw[1].count = ch->max_bufsize; in ctcm_ch_alloc_buffer()
396 if (set_normalized_cda(&ch->ccw[1], ch->trans_skb->data)) { in ctcm_ch_alloc_buffer()
407 ch->ccw[1].count = 0; in ctcm_ch_alloc_buffer()
534 ch->ccw[4].count = block_len; in ctcm_transmit_skb()
535 if (set_normalized_cda(&ch->ccw[4], skb->data)) { in ctcm_transmit_skb()
554 ch->ccw[1].count = skb->len; in ctcm_transmit_skb()
[all …]
/Linux-v5.15/arch/s390/kernel/
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()
Dipl.c334 return sprintf(page, "0.%x.%04x\n", ipl_block.ccw.ssid, in sys_ipl_device_show()
335 ipl_block.ccw.devno); in sys_ipl_device_show()
602 memset(ipb->ccw.vm_parm, 0, DIAG308_VMPARM_SIZE); in reipl_generic_vmparm_store()
603 ipb->ccw.vm_parm_len = ip_len; in reipl_generic_vmparm_store()
605 ipb->ccw.vm_flags |= IPL_PB0_CCW_VM_FLAG_VP; in reipl_generic_vmparm_store()
606 memcpy(ipb->ccw.vm_parm, buf, ip_len); in reipl_generic_vmparm_store()
607 ASCEBC(ipb->ccw.vm_parm, ip_len); in reipl_generic_vmparm_store()
609 ipb->ccw.vm_flags &= ~IPL_PB0_CCW_VM_FLAG_VP; in reipl_generic_vmparm_store()
910 DEFINE_IPL_CCW_ATTR_RW(reipl_ccw, device, reipl_block_ccw->ccw);
992 memcpy(dst, ipb->ccw.nss_name, NSS_NAME_SIZE); in reipl_get_ascii_nss_name()
[all …]
/Linux-v5.15/drivers/crypto/nx/
Dnx-common-powernv.c464 u32 ccw; in nx842_exec_icswx() local
485 ccw = 0; in nx842_exec_icswx()
486 ccw = SET_FIELD(CCW_CT, ccw, nx842_ct); in nx842_exec_icswx()
487 ccw = SET_FIELD(CCW_CI_842, ccw, 0); /* use 0 for hw auto-selection */ in nx842_exec_icswx()
488 ccw = SET_FIELD(CCW_FC_842, ccw, fc); in nx842_exec_icswx()
493 ret = icswx(cpu_to_be32(ccw), crb); in nx842_exec_icswx()
496 (unsigned int)ccw, in nx842_exec_icswx()
497 (unsigned int)be32_to_cpu(crb->ccw)); in nx842_exec_icswx()
568 u32 ccw; in nx842_exec_vas() local
582 ccw = 0; in nx842_exec_vas()
[all …]
/Linux-v5.15/Documentation/s390/
Dvfio-ccw.rst2 vfio-ccw: the basic infrastructure
9 Linux/s390. Motivation for vfio-ccw is to passthrough subchannels to a
43 Motivation of vfio-ccw
48 (virtio-ccw)" transport. This makes virtio devices discoverable via
86 Back to vfio-ccw, in short:
99 Physical vfio ccw device and its child mdev
102 As mentioned above, we realize vfio-ccw with a mdev implementation.
105 vfio-ccw device does not have an IOMMU level translation or isolation.
108 handling the I/O instruction interception, vfio-ccw has the software
127 - The vfio_mdev driver for the mediated vfio ccw device.
[all …]
Ddriver-model.rst11 All ccw devices are accessed via a subchannel, this is reflected in the
29 system; it is a pseudo subchannel where disconnected ccw devices are moved to
30 if they are displaced by another ccw device becoming operational on their
31 former subchannel. The ccw devices will be moved again to a proper subchannel
34 You should address a ccw device via its bus id (e.g. 0.0.4711); the device can
35 be found under bus/ccw/devices/.
37 All ccw devices export some data via sysfs.
69 1.1 Bringing up a ccw device
80 1.2 Writing a driver for ccw devices
246 The ccwgroup mechanism is designed to handle devices consisting of multiple ccw
[all …]
/Linux-v5.15/arch/powerpc/include/asm/
Dicswx.h142 __be32 ccw; member
185 static inline int icswx(__be32 ccw, struct coprocessor_request_block *crb) in icswx() argument
187 __be64 ccw_reg = ccw; in icswx()

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