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_ */
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