| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mike Marciniszyn | 2055 | 62.10% | 1 | 4.17% |
| Jason Gunthorpe | 500 | 15.11% | 2 | 8.33% |
| Tadeusz Struk | 376 | 11.36% | 3 | 12.50% |
| Vennila Megavannan | 166 | 5.02% | 1 | 4.17% |
| Parav Pandit | 63 | 1.90% | 2 | 8.33% |
| Joe Perches | 60 | 1.81% | 3 | 12.50% |
| Jubin John | 24 | 0.73% | 2 | 8.33% |
| Dennis Dalessandro | 18 | 0.54% | 1 | 4.17% |
| Moni Shoua | 12 | 0.36% | 1 | 4.17% |
| Dean Luick | 12 | 0.36% | 1 | 4.17% |
| Kaike Wan | 9 | 0.27% | 1 | 4.17% |
| Kamal Heib | 6 | 0.18% | 1 | 4.17% |
| Dasaratharaman Chandramouli | 4 | 0.12% | 1 | 4.17% |
| Mark Bloch | 1 | 0.03% | 1 | 4.17% |
| Michael J. Ruhl | 1 | 0.03% | 1 | 4.17% |
| caihuoqing | 1 | 0.03% | 1 | 4.17% |
| Krzysztof Kozlowski | 1 | 0.03% | 1 | 4.17% |
| Total | 3309 | 24 |
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause /* * Copyright(c) 2015-2017 Intel Corporation. */ #include <linux/ctype.h> #include <rdma/ib_sysfs.h> #include "hfi.h" #include "mad.h" #include "trace.h" static struct hfi1_pportdata *hfi1_get_pportdata_kobj(struct kobject *kobj) { u32 port_num; struct ib_device *ibdev = ib_port_sysfs_get_ibdev_kobj(kobj, &port_num); struct hfi1_devdata *dd = dd_from_ibdev(ibdev); return &dd->pport[port_num - 1]; } /* * Start of per-port congestion control structures and support code */ /* * Congestion control table size followed by table entries */ static ssize_t cc_table_bin_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { int ret; struct hfi1_pportdata *ppd = hfi1_get_pportdata_kobj(kobj); struct cc_state *cc_state; ret = ppd->total_cct_entry * sizeof(struct ib_cc_table_entry_shadow) + sizeof(__be16); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; rcu_read_lock(); cc_state = get_cc_state(ppd); if (!cc_state) { rcu_read_unlock(); return -EINVAL; } memcpy(buf, (void *)&cc_state->cct + pos, count); rcu_read_unlock(); return count; } static BIN_ATTR_RO(cc_table_bin, PAGE_SIZE); /* * Congestion settings: port control, control map and an array of 16 * entries for the congestion entries - increase, timer, event log * trigger threshold and the minimum injection rate delay. */ static ssize_t cc_setting_bin_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t pos, size_t count) { struct hfi1_pportdata *ppd = hfi1_get_pportdata_kobj(kobj); int ret; struct cc_state *cc_state; ret = sizeof(struct opa_congestion_setting_attr_shadow); if (pos > ret) return -EINVAL; if (count > ret - pos) count = ret - pos; if (!count) return count; rcu_read_lock(); cc_state = get_cc_state(ppd); if (!cc_state) { rcu_read_unlock(); return -EINVAL; } memcpy(buf, (void *)&cc_state->cong_setting + pos, count); rcu_read_unlock(); return count; } static BIN_ATTR_RO(cc_setting_bin, PAGE_SIZE); static struct bin_attribute *port_cc_bin_attributes[] = { &bin_attr_cc_setting_bin, &bin_attr_cc_table_bin, NULL }; static ssize_t cc_prescan_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct hfi1_devdata *dd = dd_from_ibdev(ibdev); struct hfi1_pportdata *ppd = &dd->pport[port_num - 1]; return sysfs_emit(buf, "%s\n", ppd->cc_prescan ? "on" : "off"); } static ssize_t cc_prescan_store(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, const char *buf, size_t count) { struct hfi1_devdata *dd = dd_from_ibdev(ibdev); struct hfi1_pportdata *ppd = &dd->pport[port_num - 1]; if (!memcmp(buf, "on", 2)) ppd->cc_prescan = true; else if (!memcmp(buf, "off", 3)) ppd->cc_prescan = false; return count; } static IB_PORT_ATTR_ADMIN_RW(cc_prescan); static struct attribute *port_cc_attributes[] = { &ib_port_attr_cc_prescan.attr, NULL }; static const struct attribute_group port_cc_group = { .name = "CCMgtA", .attrs = port_cc_attributes, .bin_attrs = port_cc_bin_attributes, }; /* Start sc2vl */ struct hfi1_sc2vl_attr { struct ib_port_attribute attr; int sc; }; static ssize_t sc2vl_attr_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct hfi1_sc2vl_attr *sattr = container_of(attr, struct hfi1_sc2vl_attr, attr); struct hfi1_devdata *dd = dd_from_ibdev(ibdev); return sysfs_emit(buf, "%u\n", *((u8 *)dd->sc2vl + sattr->sc)); } #define HFI1_SC2VL_ATTR(N) \ static struct hfi1_sc2vl_attr hfi1_sc2vl_attr_##N = { \ .attr = __ATTR(N, 0444, sc2vl_attr_show, NULL), \ .sc = N, \ } HFI1_SC2VL_ATTR(0); HFI1_SC2VL_ATTR(1); HFI1_SC2VL_ATTR(2); HFI1_SC2VL_ATTR(3); HFI1_SC2VL_ATTR(4); HFI1_SC2VL_ATTR(5); HFI1_SC2VL_ATTR(6); HFI1_SC2VL_ATTR(7); HFI1_SC2VL_ATTR(8); HFI1_SC2VL_ATTR(9); HFI1_SC2VL_ATTR(10); HFI1_SC2VL_ATTR(11); HFI1_SC2VL_ATTR(12); HFI1_SC2VL_ATTR(13); HFI1_SC2VL_ATTR(14); HFI1_SC2VL_ATTR(15); HFI1_SC2VL_ATTR(16); HFI1_SC2VL_ATTR(17); HFI1_SC2VL_ATTR(18); HFI1_SC2VL_ATTR(19); HFI1_SC2VL_ATTR(20); HFI1_SC2VL_ATTR(21); HFI1_SC2VL_ATTR(22); HFI1_SC2VL_ATTR(23); HFI1_SC2VL_ATTR(24); HFI1_SC2VL_ATTR(25); HFI1_SC2VL_ATTR(26); HFI1_SC2VL_ATTR(27); HFI1_SC2VL_ATTR(28); HFI1_SC2VL_ATTR(29); HFI1_SC2VL_ATTR(30); HFI1_SC2VL_ATTR(31); static struct attribute *port_sc2vl_attributes[] = { &hfi1_sc2vl_attr_0.attr.attr, &hfi1_sc2vl_attr_1.attr.attr, &hfi1_sc2vl_attr_2.attr.attr, &hfi1_sc2vl_attr_3.attr.attr, &hfi1_sc2vl_attr_4.attr.attr, &hfi1_sc2vl_attr_5.attr.attr, &hfi1_sc2vl_attr_6.attr.attr, &hfi1_sc2vl_attr_7.attr.attr, &hfi1_sc2vl_attr_8.attr.attr, &hfi1_sc2vl_attr_9.attr.attr, &hfi1_sc2vl_attr_10.attr.attr, &hfi1_sc2vl_attr_11.attr.attr, &hfi1_sc2vl_attr_12.attr.attr, &hfi1_sc2vl_attr_13.attr.attr, &hfi1_sc2vl_attr_14.attr.attr, &hfi1_sc2vl_attr_15.attr.attr, &hfi1_sc2vl_attr_16.attr.attr, &hfi1_sc2vl_attr_17.attr.attr, &hfi1_sc2vl_attr_18.attr.attr, &hfi1_sc2vl_attr_19.attr.attr, &hfi1_sc2vl_attr_20.attr.attr, &hfi1_sc2vl_attr_21.attr.attr, &hfi1_sc2vl_attr_22.attr.attr, &hfi1_sc2vl_attr_23.attr.attr, &hfi1_sc2vl_attr_24.attr.attr, &hfi1_sc2vl_attr_25.attr.attr, &hfi1_sc2vl_attr_26.attr.attr, &hfi1_sc2vl_attr_27.attr.attr, &hfi1_sc2vl_attr_28.attr.attr, &hfi1_sc2vl_attr_29.attr.attr, &hfi1_sc2vl_attr_30.attr.attr, &hfi1_sc2vl_attr_31.attr.attr, NULL }; static const struct attribute_group port_sc2vl_group = { .name = "sc2vl", .attrs = port_sc2vl_attributes, }; /* End sc2vl */ /* Start sl2sc */ struct hfi1_sl2sc_attr { struct ib_port_attribute attr; int sl; }; static ssize_t sl2sc_attr_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct hfi1_sl2sc_attr *sattr = container_of(attr, struct hfi1_sl2sc_attr, attr); struct hfi1_devdata *dd = dd_from_ibdev(ibdev); struct hfi1_ibport *ibp = &dd->pport[port_num - 1].ibport_data; return sysfs_emit(buf, "%u\n", ibp->sl_to_sc[sattr->sl]); } #define HFI1_SL2SC_ATTR(N) \ static struct hfi1_sl2sc_attr hfi1_sl2sc_attr_##N = { \ .attr = __ATTR(N, 0444, sl2sc_attr_show, NULL), .sl = N \ } HFI1_SL2SC_ATTR(0); HFI1_SL2SC_ATTR(1); HFI1_SL2SC_ATTR(2); HFI1_SL2SC_ATTR(3); HFI1_SL2SC_ATTR(4); HFI1_SL2SC_ATTR(5); HFI1_SL2SC_ATTR(6); HFI1_SL2SC_ATTR(7); HFI1_SL2SC_ATTR(8); HFI1_SL2SC_ATTR(9); HFI1_SL2SC_ATTR(10); HFI1_SL2SC_ATTR(11); HFI1_SL2SC_ATTR(12); HFI1_SL2SC_ATTR(13); HFI1_SL2SC_ATTR(14); HFI1_SL2SC_ATTR(15); HFI1_SL2SC_ATTR(16); HFI1_SL2SC_ATTR(17); HFI1_SL2SC_ATTR(18); HFI1_SL2SC_ATTR(19); HFI1_SL2SC_ATTR(20); HFI1_SL2SC_ATTR(21); HFI1_SL2SC_ATTR(22); HFI1_SL2SC_ATTR(23); HFI1_SL2SC_ATTR(24); HFI1_SL2SC_ATTR(25); HFI1_SL2SC_ATTR(26); HFI1_SL2SC_ATTR(27); HFI1_SL2SC_ATTR(28); HFI1_SL2SC_ATTR(29); HFI1_SL2SC_ATTR(30); HFI1_SL2SC_ATTR(31); static struct attribute *port_sl2sc_attributes[] = { &hfi1_sl2sc_attr_0.attr.attr, &hfi1_sl2sc_attr_1.attr.attr, &hfi1_sl2sc_attr_2.attr.attr, &hfi1_sl2sc_attr_3.attr.attr, &hfi1_sl2sc_attr_4.attr.attr, &hfi1_sl2sc_attr_5.attr.attr, &hfi1_sl2sc_attr_6.attr.attr, &hfi1_sl2sc_attr_7.attr.attr, &hfi1_sl2sc_attr_8.attr.attr, &hfi1_sl2sc_attr_9.attr.attr, &hfi1_sl2sc_attr_10.attr.attr, &hfi1_sl2sc_attr_11.attr.attr, &hfi1_sl2sc_attr_12.attr.attr, &hfi1_sl2sc_attr_13.attr.attr, &hfi1_sl2sc_attr_14.attr.attr, &hfi1_sl2sc_attr_15.attr.attr, &hfi1_sl2sc_attr_16.attr.attr, &hfi1_sl2sc_attr_17.attr.attr, &hfi1_sl2sc_attr_18.attr.attr, &hfi1_sl2sc_attr_19.attr.attr, &hfi1_sl2sc_attr_20.attr.attr, &hfi1_sl2sc_attr_21.attr.attr, &hfi1_sl2sc_attr_22.attr.attr, &hfi1_sl2sc_attr_23.attr.attr, &hfi1_sl2sc_attr_24.attr.attr, &hfi1_sl2sc_attr_25.attr.attr, &hfi1_sl2sc_attr_26.attr.attr, &hfi1_sl2sc_attr_27.attr.attr, &hfi1_sl2sc_attr_28.attr.attr, &hfi1_sl2sc_attr_29.attr.attr, &hfi1_sl2sc_attr_30.attr.attr, &hfi1_sl2sc_attr_31.attr.attr, NULL }; static const struct attribute_group port_sl2sc_group = { .name = "sl2sc", .attrs = port_sl2sc_attributes, }; /* End sl2sc */ /* Start vl2mtu */ struct hfi1_vl2mtu_attr { struct ib_port_attribute attr; int vl; }; static ssize_t vl2mtu_attr_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *attr, char *buf) { struct hfi1_vl2mtu_attr *vlattr = container_of(attr, struct hfi1_vl2mtu_attr, attr); struct hfi1_devdata *dd = dd_from_ibdev(ibdev); return sysfs_emit(buf, "%u\n", dd->vld[vlattr->vl].mtu); } #define HFI1_VL2MTU_ATTR(N) \ static struct hfi1_vl2mtu_attr hfi1_vl2mtu_attr_##N = { \ .attr = __ATTR(N, 0444, vl2mtu_attr_show, NULL), \ .vl = N, \ } HFI1_VL2MTU_ATTR(0); HFI1_VL2MTU_ATTR(1); HFI1_VL2MTU_ATTR(2); HFI1_VL2MTU_ATTR(3); HFI1_VL2MTU_ATTR(4); HFI1_VL2MTU_ATTR(5); HFI1_VL2MTU_ATTR(6); HFI1_VL2MTU_ATTR(7); HFI1_VL2MTU_ATTR(8); HFI1_VL2MTU_ATTR(9); HFI1_VL2MTU_ATTR(10); HFI1_VL2MTU_ATTR(11); HFI1_VL2MTU_ATTR(12); HFI1_VL2MTU_ATTR(13); HFI1_VL2MTU_ATTR(14); HFI1_VL2MTU_ATTR(15); static struct attribute *port_vl2mtu_attributes[] = { &hfi1_vl2mtu_attr_0.attr.attr, &hfi1_vl2mtu_attr_1.attr.attr, &hfi1_vl2mtu_attr_2.attr.attr, &hfi1_vl2mtu_attr_3.attr.attr, &hfi1_vl2mtu_attr_4.attr.attr, &hfi1_vl2mtu_attr_5.attr.attr, &hfi1_vl2mtu_attr_6.attr.attr, &hfi1_vl2mtu_attr_7.attr.attr, &hfi1_vl2mtu_attr_8.attr.attr, &hfi1_vl2mtu_attr_9.attr.attr, &hfi1_vl2mtu_attr_10.attr.attr, &hfi1_vl2mtu_attr_11.attr.attr, &hfi1_vl2mtu_attr_12.attr.attr, &hfi1_vl2mtu_attr_13.attr.attr, &hfi1_vl2mtu_attr_14.attr.attr, &hfi1_vl2mtu_attr_15.attr.attr, NULL }; static const struct attribute_group port_vl2mtu_group = { .name = "vl2mtu", .attrs = port_vl2mtu_attributes, }; /* end of per-port file structures and support code */ /* * Start of per-unit (or driver, in some cases, but replicated * per unit) functions (these get a device *) */ static ssize_t hw_rev_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); return sysfs_emit(buf, "%x\n", dd_from_dev(dev)->minrev); } static DEVICE_ATTR_RO(hw_rev); static ssize_t board_id_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); if (!dd->boardname) return -EINVAL; return sysfs_emit(buf, "%s\n", dd->boardname); } static DEVICE_ATTR_RO(board_id); static ssize_t boardversion_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* The string printed here is already newline-terminated. */ return sysfs_emit(buf, "%s", dd->boardversion); } static DEVICE_ATTR_RO(boardversion); static ssize_t nctxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* * Return the smaller of send and receive contexts. * Normally, user level applications would require both a send * and a receive context, so returning the smaller of the two counts * give a more accurate picture of total contexts available. */ return sysfs_emit(buf, "%u\n", min(dd->num_user_contexts, (u32)dd->sc_sizes[SC_USER].count)); } static DEVICE_ATTR_RO(nctxts); static ssize_t nfreectxts_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* Return the number of free user ports (contexts) available. */ return sysfs_emit(buf, "%u\n", dd->freectxts); } static DEVICE_ATTR_RO(nfreectxts); static ssize_t serial_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); /* dd->serial is already newline terminated in chip.c */ return sysfs_emit(buf, "%s", dd->serial); } static DEVICE_ATTR_RO(serial); static ssize_t chip_reset_store(struct device *device, struct device_attribute *attr, const char *buf, size_t count) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); int ret; if (count < 5 || memcmp(buf, "reset", 5) || !dd->diag_client) { ret = -EINVAL; goto bail; } ret = hfi1_reset_device(dd->unit); bail: return ret < 0 ? ret : count; } static DEVICE_ATTR_WO(chip_reset); /* * Convert the reported temperature from an integer (reported in * units of 0.25C) to a floating point number. */ #define temp_d(t) ((t) >> 2) #define temp_f(t) (((t)&0x3) * 25u) /* * Dump tempsense values, in decimal, to ease shell-scripts. */ static ssize_t tempsense_show(struct device *device, struct device_attribute *attr, char *buf) { struct hfi1_ibdev *dev = rdma_device_to_drv_device(device, struct hfi1_ibdev, rdi.ibdev); struct hfi1_devdata *dd = dd_from_dev(dev); struct hfi1_temp temp; int ret; ret = hfi1_tempsense_rd(dd, &temp); if (ret) return ret; return sysfs_emit(buf, "%u.%02u %u.%02u %u.%02u %u.%02u %u %u %u\n", temp_d(temp.curr), temp_f(temp.curr), temp_d(temp.lo_lim), temp_f(temp.lo_lim), temp_d(temp.hi_lim), temp_f(temp.hi_lim), temp_d(temp.crit_lim), temp_f(temp.crit_lim), temp.triggers & 0x1, temp.triggers & 0x2, temp.triggers & 0x4); } static DEVICE_ATTR_RO(tempsense); /* * end of per-unit (or driver, in some cases, but replicated * per unit) functions */ /* start of per-unit file structures and support code */ static struct attribute *hfi1_attributes[] = { &dev_attr_hw_rev.attr, &dev_attr_board_id.attr, &dev_attr_nctxts.attr, &dev_attr_nfreectxts.attr, &dev_attr_serial.attr, &dev_attr_boardversion.attr, &dev_attr_tempsense.attr, &dev_attr_chip_reset.attr, NULL, }; const struct attribute_group ib_hfi1_attr_group = { .attrs = hfi1_attributes, }; const struct attribute_group *hfi1_attr_port_groups[] = { &port_cc_group, &port_sc2vl_group, &port_sl2sc_group, &port_vl2mtu_group, NULL, }; struct sde_attribute { struct attribute attr; ssize_t (*show)(struct sdma_engine *sde, char *buf); ssize_t (*store)(struct sdma_engine *sde, const char *buf, size_t cnt); }; static ssize_t sde_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct sde_attribute *sde_attr = container_of(attr, struct sde_attribute, attr); struct sdma_engine *sde = container_of(kobj, struct sdma_engine, kobj); if (!sde_attr->show) return -EINVAL; return sde_attr->show(sde, buf); } static ssize_t sde_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct sde_attribute *sde_attr = container_of(attr, struct sde_attribute, attr); struct sdma_engine *sde = container_of(kobj, struct sdma_engine, kobj); if (!capable(CAP_SYS_ADMIN)) return -EPERM; if (!sde_attr->store) return -EINVAL; return sde_attr->store(sde, buf, count); } static const struct sysfs_ops sde_sysfs_ops = { .show = sde_show, .store = sde_store, }; static struct kobj_type sde_ktype = { .sysfs_ops = &sde_sysfs_ops, }; #define SDE_ATTR(_name, _mode, _show, _store) \ struct sde_attribute sde_attr_##_name = \ __ATTR(_name, _mode, _show, _store) static ssize_t sde_show_cpu_to_sde_map(struct sdma_engine *sde, char *buf) { return sdma_get_cpu_to_sde_map(sde, buf); } static ssize_t sde_store_cpu_to_sde_map(struct sdma_engine *sde, const char *buf, size_t count) { return sdma_set_cpu_to_sde_map(sde, buf, count); } static ssize_t sde_show_vl(struct sdma_engine *sde, char *buf) { int vl; vl = sdma_engine_get_vl(sde); if (vl < 0) return vl; return sysfs_emit(buf, "%d\n", vl); } static SDE_ATTR(cpu_list, S_IWUSR | S_IRUGO, sde_show_cpu_to_sde_map, sde_store_cpu_to_sde_map); static SDE_ATTR(vl, S_IRUGO, sde_show_vl, NULL); static struct sde_attribute *sde_attribs[] = { &sde_attr_cpu_list, &sde_attr_vl }; /* * Register and create our files in /sys/class/infiniband. */ int hfi1_verbs_register_sysfs(struct hfi1_devdata *dd) { struct ib_device *dev = &dd->verbs_dev.rdi.ibdev; struct device *class_dev = &dev->dev; int i, j, ret; for (i = 0; i < dd->num_sdma; i++) { ret = kobject_init_and_add(&dd->per_sdma[i].kobj, &sde_ktype, &class_dev->kobj, "sdma%d", i); if (ret) goto bail; for (j = 0; j < ARRAY_SIZE(sde_attribs); j++) { ret = sysfs_create_file(&dd->per_sdma[i].kobj, &sde_attribs[j]->attr); if (ret) goto bail; } } return 0; bail: /* * The function kobject_put() will call kobject_del() if the kobject * has been added successfully. The sysfs files created under the * kobject directory will also be removed during the process. */ for (; i >= 0; i--) kobject_put(&dd->per_sdma[i].kobj); return ret; } /* * Unregister and remove our files in /sys/class/infiniband. */ void hfi1_verbs_unregister_sysfs(struct hfi1_devdata *dd) { int i; /* Unwind operations in hfi1_verbs_register_sysfs() */ for (i = 0; i < dd->num_sdma; i++) kobject_put(&dd->per_sdma[i].kobj); }
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