| /drivers/ntb/ |
| D | core.c | 101 int ntb_register_device(struct ntb_dev *ntb) in ntb_register_device() argument
103 if (!ntb) in ntb_register_device()
105 if (!ntb->pdev) in ntb_register_device()
107 if (!ntb->ops) in ntb_register_device()
109 if (!ntb_dev_ops_is_valid(ntb->ops)) in ntb_register_device()
112 init_completion(&ntb->released); in ntb_register_device()
114 ntb->dev.bus = &ntb_bus; in ntb_register_device()
115 ntb->dev.parent = &ntb->pdev->dev; in ntb_register_device()
116 ntb->dev.release = ntb_dev_release; in ntb_register_device()
117 dev_set_name(&ntb->dev, "%s", pci_name(ntb->pdev)); in ntb_register_device()
[all …]
|
| D | msi.c | 31 int ntb_msi_init(struct ntb_dev *ntb, in ntb_msi_init() argument
42 peers = ntb_peer_port_count(ntb); in ntb_msi_init()
46 struct_size = sizeof(*ntb->msi) + sizeof(*ntb->msi->peer_mws) * peers; in ntb_msi_init()
48 ntb->msi = devm_kzalloc(&ntb->dev, struct_size, GFP_KERNEL); in ntb_msi_init()
49 if (!ntb->msi) in ntb_msi_init()
52 ntb->msi->desc_changed = desc_changed; in ntb_msi_init()
55 peer_widx = ntb_peer_mw_count(ntb) - 1 - i; in ntb_msi_init()
57 ret = ntb_peer_mw_get_addr(ntb, peer_widx, &mw_phys_addr, in ntb_msi_init()
62 ntb->msi->peer_mws[i] = devm_ioremap(&ntb->dev, mw_phys_addr, in ntb_msi_init()
64 if (!ntb->msi->peer_mws[i]) { in ntb_msi_init()
[all …]
|
| D | Makefile | 2 obj-$(CONFIG_NTB) += ntb.o hw/ test/
5 ntb-y := core.o
6 ntb-$(CONFIG_NTB_MSI) += msi.o
|
| D | Kconfig | 9 ntb Linux driver uses this point-to-point communication as a method to
27 source "drivers/ntb/hw/Kconfig"
29 source "drivers/ntb/test/Kconfig"
35 messages over the ntb hardware. The transport exposes a queue pair api
|
| /drivers/ntb/test/ |
| D | ntb_pingpong.c | 100 struct ntb_dev *ntb; member
121 link = ntb_link_is_up(pp->ntb, NULL, NULL); in pp_find_next_peer()
131 out_db = BIT_ULL(ntb_peer_port_number(pp->ntb, pidx)); in pp_find_next_peer()
145 ntb_db_set_mask(pp->ntb, pp->in_db); in pp_setup()
151 dev_dbg(&pp->ntb->dev, "Got no peers, so cancel\n"); in pp_setup()
155 dev_dbg(&pp->ntb->dev, "Ping-pong started with port %d, db %#llx\n", in pp_setup()
156 ntb_peer_port_number(pp->ntb, pp->out_pidx), pp->out_db); in pp_setup()
165 ntb_db_set_mask(pp->ntb, pp->in_db); in pp_clear()
167 dev_dbg(&pp->ntb->dev, "Ping-pong cancelled\n"); in pp_clear()
177 ntb_peer_spad_write(pp->ntb, pp->out_pidx, 0, count); in pp_ping()
[all …]
|
| D | ntb_msi_test.c | 20 struct ntb_dev *ntb; member
48 dev_dbg(&nm->ntb->dev, "Interrupt Occurred: %d", in ntb_msit_isr()
65 ret = ntb_msi_setup_mws(nm->ntb); in ntb_msit_setup_work()
67 dev_err(&nm->ntb->dev, "Unable to setup MSI windows: %d\n", in ntb_msit_setup_work()
77 irq = ntbm_msi_request_irq(nm->ntb, ntb_msit_isr, in ntb_msit_setup_work()
87 ret = ntb_spad_write(nm->ntb, 2 * i + 1, in ntb_msit_setup_work()
92 ret = ntb_spad_write(nm->ntb, 2 * i + 2, in ntb_msit_setup_work()
100 ntb_spad_write(nm->ntb, 0, irq_count); in ntb_msit_setup_work()
101 ntb_peer_db_set(nm->ntb, BIT(ntb_port_number(nm->ntb))); in ntb_msit_setup_work()
109 dev_dbg(&nm->ntb->dev, "MSI Descriptors Changed\n"); in ntb_msit_desc_changed()
[all …]
|
| D | ntb_perf.c | 188 struct ntb_dev *ntb; member
253 link = ntb_link_is_up(peer->perf->ntb, NULL, NULL); in perf_link_is_up()
264 dev_dbg(&perf->ntb->dev, "CMD send: %d 0x%llx\n", cmd, data); in perf_spad_cmd_send()
277 sts = ntb_peer_spad_read(perf->ntb, peer->pidx, in perf_spad_cmd_send()
284 ntb_peer_spad_write(perf->ntb, peer->pidx, in perf_spad_cmd_send()
287 ntb_peer_spad_write(perf->ntb, peer->pidx, in perf_spad_cmd_send()
290 ntb_peer_spad_write(perf->ntb, peer->pidx, in perf_spad_cmd_send()
293 ntb_peer_db_set(perf->ntb, PERF_SPAD_NOTIFY(peer->gidx)); in perf_spad_cmd_send()
295 dev_dbg(&perf->ntb->dev, "DB ring peer %#llx\n", in perf_spad_cmd_send()
310 ntb_db_clear(perf->ntb, PERF_SPAD_NOTIFY(perf->gidx)); in perf_spad_cmd_recv()
[all …]
|
| D | ntb_tool.c | 257 struct ntb_dev *ntb; member
296 up = ntb_link_is_up(tc->ntb, &speed, &width); in tool_link_event()
298 dev_dbg(&tc->ntb->dev, "link is %s speed %d width %d\n", in tool_link_event()
309 db_mask = ntb_db_vector_mask(tc->ntb, vec); in tool_db_event()
310 db_bits = ntb_db_read(tc->ntb); in tool_db_event()
312 dev_dbg(&tc->ntb->dev, "doorbell vec %d mask %#llx bits %#llx\n", in tool_db_event()
323 msg_sts = ntb_msg_read_sts(tc->ntb); in tool_msg_event()
325 dev_dbg(&tc->ntb->dev, "message bits %#llx\n", msg_sts); in tool_msg_event()
354 pos = scnprintf(buf, buf_size, "%#llx\n", fn_read(tc->ntb)); in tool_fn_read()
394 ret = fn_set(tc->ntb, bits); in tool_fn_write()
[all …]
|
| D | Kconfig | 6 doorbells of the ntb hardware. This driver may be used to test that
7 your ntb hardware and drivers are functioning at a basic level.
17 This driver may be used to test that your ntb hardware and drivers are
|
| /drivers/ntb/hw/amd/ |
| D | ntb_hw_amd.c | 84 static int amd_ntb_mw_count(struct ntb_dev *ntb, int pidx) in amd_ntb_mw_count() argument
89 return ntb_ndev(ntb)->mw_count; in amd_ntb_mw_count()
92 static int amd_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx, in amd_ntb_mw_get_align() argument
97 struct amd_ntb_dev *ndev = ntb_ndev(ntb); in amd_ntb_mw_get_align()
114 *size_max = pci_resource_len(ndev->ntb.pdev, bar); in amd_ntb_mw_get_align()
119 static int amd_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int idx, in amd_ntb_mw_set_trans() argument
122 struct amd_ntb_dev *ndev = ntb_ndev(ntb); in amd_ntb_mw_set_trans()
136 mw_size = pci_resource_len(ntb->pdev, bar); in amd_ntb_mw_set_trans()
145 base_addr = pci_resource_start(ntb->pdev, bar); in amd_ntb_mw_set_trans()
206 if (ndev->ntb.topo == NTB_TOPO_SEC) { in amd_ntb_get_link_status()
[all …]
|
| D | ntb_hw_amd.h | 181 struct ntb_dev ntb; member
216 #define ntb_ndev(__ntb) container_of(__ntb, struct amd_ntb_dev, ntb)
|
| /drivers/ntb/hw/intel/ |
| D | ntb_hw_gen1.h | 158 int intel_ntb_mw_count(struct ntb_dev *ntb, int pidx);
159 int intel_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, int idx,
162 int intel_ntb_peer_mw_count(struct ntb_dev *ntb);
163 int intel_ntb_peer_mw_get_addr(struct ntb_dev *ntb, int idx,
165 u64 intel_ntb_link_is_up(struct ntb_dev *ntb, enum ntb_speed *speed,
167 int intel_ntb_link_disable(struct ntb_dev *ntb);
168 u64 intel_ntb_db_valid_mask(struct ntb_dev *ntb);
169 int intel_ntb_db_vector_count(struct ntb_dev *ntb);
170 u64 intel_ntb_db_vector_mask(struct ntb_dev *ntb, int db_vector);
171 int intel_ntb_db_set_mask(struct ntb_dev *ntb, u64 db_bits);
[all …]
|
| D | ntb_hw_gen3.c | 102 rc = pci_read_config_word(ndev->ntb.pdev, in gen3_poll_link()
150 pdev = ndev->ntb.pdev; in gen3_setup_b2b_mw()
187 switch (ndev->ntb.topo) { in gen3_init_ntb()
194 if (ndev->ntb.topo == NTB_TOPO_B2B_USD) { in gen3_init_ntb()
232 pdev = ndev->ntb.pdev; in gen3_init_dev()
240 ndev->ntb.topo = xeon_ppd_topo(ndev, ppd); in gen3_init_dev()
242 ntb_topo_string(ndev->ntb.topo)); in gen3_init_dev()
243 if (ndev->ntb.topo == NTB_TOPO_NONE) in gen3_init_dev()
281 ntb_topo_string(ndev->ntb.topo)); in ndev_ntb3_debugfs_read()
347 if (ntb_topo_is_b2b(ndev->ntb.topo)) { in ndev_ntb3_debugfs_read()
[all …]
|
| D | ntb_hw_gen1.c | 152 if (!ntb_topo_is_b2b(ndev->ntb.topo)) in ndev_reset_unsafe_flags()
193 dev_dbg(&ndev->ntb.pdev->dev, "Peer db addr %llx\n", *db_addr); in ndev_db_addr()
198 dev_dbg(&ndev->ntb.pdev->dev, "Peer db size %llx\n", *db_size); in ndev_db_addr()
289 dev_dbg(&ndev->ntb.pdev->dev, "Peer spad addr %llx\n", in ndev_spad_addr()
331 dev_dbg(&ndev->ntb.pdev->dev, "vec %d vec_mask %llx\n", vec, vec_mask); in ndev_interrupt()
337 ntb_link_event(&ndev->ntb); in ndev_interrupt()
341 ntb_db_event(&ndev->ntb, vec); in ndev_interrupt()
350 dev_dbg(&nvec->ndev->ntb.pdev->dev, "irq: %d nvec->num: %d\n", in ndev_vec_isr()
360 return ndev_interrupt(ndev, irq - ndev->ntb.pdev->irq); in ndev_irq_isr()
370 pdev = ndev->ntb.pdev; in ndev_init_isr()
[all …]
|
| D | ntb_hw_gen4.c | 104 pdev = ndev->ntb.pdev; in gen4_setup_b2b_mw()
141 if (ndev->ntb.topo == NTB_TOPO_B2B_USD) in gen4_init_ntb()
185 struct pci_dev *pdev = ndev->ntb.pdev; in gen4_init_dev()
197 ndev->ntb.topo = gen4_ppd_topo(ndev, ppd1); in gen4_init_dev()
199 ndev->ntb.topo = spr_ppd_topo(ndev, ppd1); in gen4_init_dev()
201 ntb_topo_string(ndev->ntb.topo)); in gen4_init_dev()
202 if (ndev->ntb.topo == NTB_TOPO_NONE) in gen4_init_dev()
243 ntb_topo_string(ndev->ntb.topo)); in ndev_ntb4_debugfs_read()
311 if (!pci_read_config_word(ndev->ntb.pdev, in ndev_ntb4_debugfs_read()
320 if (!pci_read_config_dword(ndev->ntb.pdev, in ndev_ntb4_debugfs_read()
[all …]
|
| D | ntb_hw_gen3.h | 107 int intel_ntb3_link_enable(struct ntb_dev *ntb, enum ntb_speed max_speed,
109 u64 intel_ntb3_db_read(struct ntb_dev *ntb);
110 int intel_ntb3_db_clear(struct ntb_dev *ntb, u64 db_bits);
111 int intel_ntb3_peer_db_set(struct ntb_dev *ntb, u64 db_bits);
112 int intel_ntb3_peer_db_addr(struct ntb_dev *ntb, phys_addr_t *db_addr,
|
| D | ntb_hw_intel.h | 141 struct ntb_dev ntb; member
192 #define ntb_ndev(__ntb) container_of(__ntb, struct intel_ntb_dev, ntb)
|
| /drivers/ntb/hw/idt/ |
| D | ntb_hw_idt.c | 530 dev_dbg(&ndev->ntb.pdev->dev, "Local port: %hhu, num of peers: %hhu\n", in idt_scan_ports()
535 dev_warn(&ndev->ntb.pdev->dev, "No active peer found\n"); in idt_scan_ports()
548 static int idt_ntb_port_number(struct ntb_dev *ntb) in idt_ntb_port_number() argument
550 struct idt_ntb_dev *ndev = to_ndev_ntb(ntb); in idt_ntb_port_number()
563 static int idt_ntb_peer_port_count(struct ntb_dev *ntb) in idt_ntb_peer_port_count() argument
565 struct idt_ntb_dev *ndev = to_ndev_ntb(ntb); in idt_ntb_peer_port_count()
577 static int idt_ntb_peer_port_number(struct ntb_dev *ntb, int pidx) in idt_ntb_peer_port_number() argument
579 struct idt_ntb_dev *ndev = to_ndev_ntb(ntb); in idt_ntb_peer_port_number()
598 static int idt_ntb_peer_port_idx(struct ntb_dev *ntb, int port) in idt_ntb_peer_port_idx() argument
600 struct idt_ntb_dev *ndev = to_ndev_ntb(ntb); in idt_ntb_peer_port_idx()
[all …]
|
| D | ntb_hw_idt.h | 1125 struct ntb_dev ntb; member
1153 #define to_ndev_ntb(__ntb) container_of(__ntb, struct idt_ntb_dev, ntb)
|
| /drivers/ntb/hw/mscc/ |
| D | ntb_hw_switchtec.c | 46 struct ntb_dev ntb; member
93 static struct switchtec_ntb *ntb_sndev(struct ntb_dev *ntb) in ntb_sndev() argument
95 return container_of(ntb, struct switchtec_ntb, ntb); in ntb_sndev()
166 static int switchtec_ntb_mw_count(struct ntb_dev *ntb, int pidx) in switchtec_ntb_mw_count() argument
168 struct switchtec_ntb *sndev = ntb_sndev(ntb); in switchtec_ntb_mw_count()
191 static int switchtec_ntb_mw_get_align(struct ntb_dev *ntb, int pidx, in switchtec_ntb_mw_get_align() argument
196 struct switchtec_ntb *sndev = ntb_sndev(ntb); in switchtec_ntb_mw_get_align()
270 static int switchtec_ntb_mw_set_trans(struct ntb_dev *ntb, int pidx, int widx, in switchtec_ntb_mw_set_trans() argument
273 struct switchtec_ntb *sndev = ntb_sndev(ntb); in switchtec_ntb_mw_set_trans()
285 if (widx >= switchtec_ntb_mw_count(ntb, pidx)) in switchtec_ntb_mw_set_trans()
[all …]
|
| /drivers/ntb/hw/ |
| D | Kconfig | 2 source "drivers/ntb/hw/amd/Kconfig"
3 source "drivers/ntb/hw/idt/Kconfig"
4 source "drivers/ntb/hw/intel/Kconfig"
5 source "drivers/ntb/hw/mscc/Kconfig"
|
| /drivers/net/ |
| D | ntb_netdev.c | 403 struct ntb_dev *ntb; in ntb_netdev_probe() local
409 ntb = dev_ntb(client_dev->parent); in ntb_netdev_probe()
410 pdev = ntb->pdev; in ntb_netdev_probe()
|
| /drivers/ |
| D | Makefile | 171 obj-$(CONFIG_NTB) += ntb/
|
| D | Kconfig | 181 source "drivers/ntb/Kconfig"
|