Author: cem Date: Wed Nov 11 18:55:25 2015 New Revision: 290682 URL: https://svnweb.freebsd.org/changeset/base/290682
Log: NTB: Diff reduce with Linux No functional change. Sponsored by: EMC / Isilon Storage Division Modified: head/sys/dev/ntb/if_ntb/if_ntb.c head/sys/dev/ntb/ntb_hw/ntb_hw.c head/sys/dev/ntb/ntb_hw/ntb_regs.h Modified: head/sys/dev/ntb/if_ntb/if_ntb.c ============================================================================== --- head/sys/dev/ntb/if_ntb/if_ntb.c Wed Nov 11 18:55:16 2015 (r290681) +++ head/sys/dev/ntb/if_ntb/if_ntb.c Wed Nov 11 18:55:25 2015 (r290682) @@ -273,7 +273,7 @@ static void ntb_net_tx_handler(struct nt static void ntb_net_rx_handler(struct ntb_transport_qp *qp, void *qp_data, void *data, int len); static void ntb_net_event_handler(void *data, enum ntb_link_event status); -static int ntb_transport_init(struct ntb_softc *ntb); +static int ntb_transport_probe(struct ntb_softc *ntb); static void ntb_transport_free(struct ntb_transport_ctx *); static void ntb_transport_init_queue(struct ntb_transport_ctx *nt, unsigned int qp_num); @@ -368,7 +368,7 @@ ntb_setup_interface(void) return (ENXIO); } - rc = ntb_transport_init(net_softc.ntb); + rc = ntb_transport_probe(net_softc.ntb); if (rc != 0) { printf("ntb: Cannot init transport: %d\n", rc); return (rc); @@ -541,7 +541,7 @@ ntb_net_event_handler(void *data, enum n /* Transport Init and teardown */ static int -ntb_transport_init(struct ntb_softc *ntb) +ntb_transport_probe(struct ntb_softc *ntb) { struct ntb_transport_ctx *nt = &net_softc; struct ntb_transport_mw *mw; @@ -596,6 +596,8 @@ ntb_transport_init(struct ntb_softc *ntb nt->link_is_up = false; ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO); ntb_link_event(ntb); + + callout_reset(&nt->link_work, 0, ntb_transport_link_work, nt); return (0); err: @@ -693,6 +695,8 @@ ntb_transport_init_queue(struct ntb_tran STAILQ_INIT(&qp->rx_pend_q); STAILQ_INIT(&qp->rx_free_q); STAILQ_INIT(&qp->tx_free_q); + + callout_reset(&qp->link_work, 0, ntb_qp_link_work, qp); } static void Modified: head/sys/dev/ntb/ntb_hw/ntb_hw.c ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_hw.c Wed Nov 11 18:55:16 2015 (r290681) +++ head/sys/dev/ntb/ntb_hw/ntb_hw.c Wed Nov 11 18:55:25 2015 (r290682) @@ -518,26 +518,26 @@ ntb_attach(device_t device) error = ntb_detect_atom(ntb); else error = ntb_detect_xeon(ntb); - if (error) + if (error != 0) goto out; ntb_detect_max_mw(ntb); + pci_enable_busmaster(ntb->device); + error = ntb_map_pci_bars(ntb); - if (error) + if (error != 0) goto out; if (ntb->type == NTB_ATOM) error = ntb_atom_init_dev(ntb); else error = ntb_xeon_init_dev(ntb); - if (error) - goto out; - error = ntb_init_isr(ntb); - if (error) + if (error != 0) goto out; - ntb_sysctl_init(ntb); - pci_enable_busmaster(ntb->device); + ntb_poll_link(ntb); + + ntb_sysctl_init(ntb); out: if (error != 0) @@ -556,6 +556,7 @@ ntb_detach(device_t device) ntb_db_set_mask(ntb, ntb->db_valid_mask); callout_drain(&ntb->heartbeat_timer); callout_drain(&ntb->lr_timer); + pci_disable_busmaster(ntb->device); if (ntb->type == NTB_XEON) ntb_teardown_xeon(ntb); ntb_teardown_interrupts(ntb); @@ -1274,18 +1275,22 @@ ntb_xeon_init_dev(struct ntb_softc *ntb) return (rc); /* Enable Bus Master and Memory Space on the secondary side */ - ntb_reg_write(2, XEON_PCICMD_OFFSET, + ntb_reg_write(2, XEON_SPCICMD_OFFSET, PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); - /* Enable link training */ - ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO); + /* + * Mask all doorbell interrupts. + */ + ntb_db_set_mask(ntb, ntb->db_valid_mask); - return (0); + rc = ntb_init_isr(ntb); + return (rc); } static int ntb_atom_init_dev(struct ntb_softc *ntb) { + int error; KASSERT(ntb->conn_type == NTB_CONN_B2B, ("Unsupported NTB configuration (%d)\n", ntb->conn_type)); @@ -1310,9 +1315,13 @@ ntb_atom_init_dev(struct ntb_softc *ntb) configure_atom_secondary_side_bars(ntb); /* Enable Bus Master and Memory Space on the secondary side */ - ntb_reg_write(2, ATOM_PCICMD_OFFSET, + ntb_reg_write(2, ATOM_SPCICMD_OFFSET, PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN); + error = ntb_init_isr(ntb); + if (error != 0) + return (error); + /* Initiate PCI-E link training */ ntb_link_enable(ntb, NTB_SPEED_AUTO, NTB_WIDTH_AUTO); @@ -1988,6 +1997,19 @@ ntb_sysctl_init(struct ntb_softc *ntb) CTLFLAG_RD, NULL, "Raw HW registers (big-endian)"); regpar = SYSCTL_CHILDREN(tmptree); + SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "ntbcntl", + CTLFLAG_RD | CTLTYPE_OPAQUE, ntb, NTB_REG_32 | + ntb->reg->ntb_ctl, sysctl_handle_register, "IU", + "NTB Control register"); + SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "lnkcap", + CTLFLAG_RD | CTLTYPE_OPAQUE, ntb, NTB_REG_32 | + 0x19c, sysctl_handle_register, "IU", + "NTB Link Capabilities"); + SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "lnkcon", + CTLFLAG_RD | CTLTYPE_OPAQUE, ntb, NTB_REG_32 | + 0x1a0, sysctl_handle_register, "IU", + "NTB Link Control register"); + SYSCTL_ADD_PROC(ctx, regpar, OID_AUTO, "db_mask", CTLFLAG_RD | CTLTYPE_OPAQUE, ntb, NTB_REG_64 | NTB_DB_READ | ntb->self_reg->db_mask, @@ -2352,7 +2374,7 @@ ntb_peer_spad_write(struct ntb_softc *nt return (EINVAL); if (HAS_FEATURE(NTB_SDOORBELL_LOCKUP)) - ntb_mw_write(4, XEON_SHADOW_SPAD_OFFSET + idx * 4, val); + ntb_mw_write(4, XEON_SPAD_OFFSET + idx * 4, val); else ntb_reg_write(4, ntb->peer_reg->spad + idx * 4, val); @@ -2378,7 +2400,7 @@ ntb_peer_spad_read(struct ntb_softc *ntb return (EINVAL); if (HAS_FEATURE(NTB_SDOORBELL_LOCKUP)) - *val = ntb_mw_read(4, XEON_SHADOW_SPAD_OFFSET + idx * 4); + *val = ntb_mw_read(4, XEON_SPAD_OFFSET + idx * 4); else *val = ntb_reg_read(4, ntb->peer_reg->spad + idx * 4); @@ -2564,7 +2586,7 @@ ntb_peer_db_set(struct ntb_softc *ntb, u { if (HAS_FEATURE(NTB_SDOORBELL_LOCKUP)) { - ntb_mw_write(2, XEON_SHADOW_PDOORBELL_OFFSET, bit); + ntb_mw_write(2, XEON_PDOORBELL_OFFSET, bit); return; } @@ -2600,7 +2622,7 @@ ntb_get_peer_db_addr(struct ntb_softc *n ("invalid b2b idx")); bar = &ntb->bar_info[ntb_mw_to_bar(ntb, ntb->b2b_mw_idx)]; - regoff = XEON_SHADOW_PDOORBELL_OFFSET; + regoff = XEON_PDOORBELL_OFFSET; } KASSERT(bar->pci_bus_tag != X86_BUS_SPACE_IO, ("uh oh")); Modified: head/sys/dev/ntb/ntb_hw/ntb_regs.h ============================================================================== --- head/sys/dev/ntb/ntb_hw/ntb_regs.h Wed Nov 11 18:55:16 2015 (r290681) +++ head/sys/dev/ntb/ntb_hw/ntb_regs.h Wed Nov 11 18:55:25 2015 (r290682) @@ -46,7 +46,7 @@ #define XEON_DB_LINK_BIT (1 << XEON_DB_LINK) #define XEON_SPAD_COUNT 16 -#define XEON_PCICMD_OFFSET 0x0504 +#define XEON_SPCICMD_OFFSET 0x0504 #define XEON_DEVCTRL_OFFSET 0x0598 #define XEON_DEVSTS_OFFSET 0x059a #define XEON_LINK_STATUS_OFFSET 0x01a2 @@ -91,7 +91,7 @@ #define ATOM_DB_MSIX_VECTOR_SHIFT 1 #define ATOM_SPAD_COUNT 16 -#define ATOM_PCICMD_OFFSET 0xb004 +#define ATOM_SPCICMD_OFFSET 0xb004 #define ATOM_MBAR23_OFFSET 0xb018 #define ATOM_MBAR45_OFFSET 0xb020 #define ATOM_DEVCTRL_OFFSET 0xb048 @@ -168,8 +168,4 @@ /* The peer ntb secondary config space is 32KB fixed size */ #define XEON_B2B_MIN_SIZE 0x8000 -/* XEON Shadowed MMIO Space */ -#define XEON_SHADOW_PDOORBELL_OFFSET 0x60 -#define XEON_SHADOW_SPAD_OFFSET 0x80 - #endif /* _NTB_REGS_H_ */ _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"