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authorRalph Campbell <ralph.campbell@qlogic.com>2008-04-16 21:09:30 -0700
committerRoland Dreier <rolandd@cisco.com>2008-04-16 21:09:30 -0700
commitafce688ba968723a9e281b141bf7b0ab43a36968 (patch)
treef8e2999000a3be7a34bc307f2b8c4471ee2e3dad /drivers/infiniband/hw/ipath/ipath_kernel.h
parent6bb68835d3eb72cd490056fda75d95493c31461b (diff)
IB/ipath: Header file changes to support IBA7220
This is part of a patch series to add support for a new HCA. This patch adds new fields to the header files. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_kernel.h')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_kernel.h165
1 files changed, 156 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 89059962109..feb4f9dbac7 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -42,6 +42,8 @@
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/scatterlist.h>
#include <asm/io.h>
#include <rdma/ib_verbs.h>
@@ -180,6 +182,8 @@ struct ipath_portdata {
};
struct sk_buff;
+struct ipath_sge_state;
+struct ipath_verbs_txreq;
/*
* control information for layered drivers
@@ -193,6 +197,37 @@ struct ipath_skbinfo {
dma_addr_t phys;
};
+struct ipath_sdma_txreq {
+ int flags;
+ int sg_count;
+ union {
+ struct scatterlist *sg;
+ void *map_addr;
+ };
+ void (*callback)(void *, int);
+ void *callback_cookie;
+ int callback_status;
+ u16 start_idx; /* sdma private */
+ u16 next_descq_idx; /* sdma private */
+ struct list_head list; /* sdma private */
+};
+
+struct ipath_sdma_desc {
+ __le64 qw[2];
+};
+
+#define IPATH_SDMA_TXREQ_F_USELARGEBUF 0x1
+#define IPATH_SDMA_TXREQ_F_HEADTOHOST 0x2
+#define IPATH_SDMA_TXREQ_F_INTREQ 0x4
+#define IPATH_SDMA_TXREQ_F_FREEBUF 0x8
+#define IPATH_SDMA_TXREQ_F_FREEDESC 0x10
+#define IPATH_SDMA_TXREQ_F_VL15 0x20
+
+#define IPATH_SDMA_TXREQ_S_OK 0
+#define IPATH_SDMA_TXREQ_S_SENDERROR 1
+#define IPATH_SDMA_TXREQ_S_ABORTED 2
+#define IPATH_SDMA_TXREQ_S_SHUTDOWN 3
+
/* max dwords in small buffer packet */
#define IPATH_SMALLBUF_DWORDS (dd->ipath_piosize2k >> 2)
@@ -385,6 +420,15 @@ struct ipath_devdata {
u32 ipath_pcibar0;
/* so we can rewrite it after a chip reset */
u32 ipath_pcibar1;
+ u32 ipath_x1_fix_tries;
+ u32 ipath_autoneg_tries;
+ u32 serdes_first_init_done;
+
+ struct ipath_relock {
+ atomic_t ipath_relock_timer_active;
+ struct timer_list ipath_relock_timer;
+ unsigned int ipath_relock_interval; /* in jiffies */
+ } ipath_relock_singleton;
/* interrupt number */
int ipath_irq;
@@ -431,8 +475,38 @@ struct ipath_devdata {
void *ipath_dummy_hdrq; /* used after port close */
dma_addr_t ipath_dummy_hdrq_phys;
+ /* SendDMA related entries */
+ spinlock_t ipath_sdma_lock;
+ u64 ipath_sdma_status;
+ unsigned long ipath_sdma_abort_jiffies;
+ unsigned long ipath_sdma_abort_intr_timeout;
+ unsigned long ipath_sdma_buf_jiffies;
+ struct ipath_sdma_desc *ipath_sdma_descq;
+ u64 ipath_sdma_descq_added;
+ u64 ipath_sdma_descq_removed;
+ int ipath_sdma_desc_nreserved;
+ u16 ipath_sdma_descq_cnt;
+ u16 ipath_sdma_descq_tail;
+ u16 ipath_sdma_descq_head;
+ u16 ipath_sdma_next_intr;
+ u16 ipath_sdma_reset_wait;
+ u8 ipath_sdma_generation;
+ struct tasklet_struct ipath_sdma_abort_task;
+ struct tasklet_struct ipath_sdma_notify_task;
+ struct list_head ipath_sdma_activelist;
+ struct list_head ipath_sdma_notifylist;
+ atomic_t ipath_sdma_vl15_count;
+ struct timer_list ipath_sdma_vl15_timer;
+
+ dma_addr_t ipath_sdma_descq_phys;
+ volatile __le64 *ipath_sdma_head_dma;
+ dma_addr_t ipath_sdma_head_phys;
+
unsigned long ipath_ureg_align; /* user register alignment */
+ struct delayed_work ipath_autoneg_work;
+ wait_queue_head_t ipath_autoneg_wait;
+
/* HoL blocking / user app forward-progress state */
unsigned ipath_hol_state;
unsigned ipath_hol_next;
@@ -485,6 +559,8 @@ struct ipath_devdata {
u64 ipath_intconfig;
/* kr_sendpiobufbase value */
u64 ipath_piobufbase;
+ /* kr_ibcddrctrl shadow */
+ u64 ipath_ibcddrctrl;
/* these are the "32 bit" regs */
@@ -501,7 +577,10 @@ struct ipath_devdata {
unsigned long ipath_rcvctrl;
/* shadow kr_sendctrl */
unsigned long ipath_sendctrl;
- unsigned long ipath_lastcancel; /* to not count armlaunch after cancel */
+ /* to not count armlaunch after cancel */
+ unsigned long ipath_lastcancel;
+ /* count cases where special trigger was needed (double write) */
+ unsigned long ipath_spectriggerhit;
/* value we put in kr_rcvhdrcnt */
u32 ipath_rcvhdrcnt;
@@ -523,6 +602,7 @@ struct ipath_devdata {
u32 ipath_piobcnt4k;
/* size in bytes of "4KB" PIO buffers */
u32 ipath_piosize4k;
+ u32 ipath_pioreserved; /* reserved special-inkernel; */
/* kr_rcvegrbase value */
u32 ipath_rcvegrbase;
/* kr_rcvegrcnt value */
@@ -586,7 +666,7 @@ struct ipath_devdata {
*/
u8 ipath_serial[16];
/* human readable board version */
- u8 ipath_boardversion[80];
+ u8 ipath_boardversion[96];
u8 ipath_lbus_info[32]; /* human readable localbus info */
/* chip major rev, from ipath_revision */
u8 ipath_majrev;
@@ -715,6 +795,13 @@ struct ipath_devdata {
/* interrupt mitigation reload register info */
u16 ipath_jint_idle_ticks; /* idle clock ticks */
u16 ipath_jint_max_packets; /* max packets across all ports */
+
+ /*
+ * lock for access to SerDes, and flags to sequence preset
+ * versus steady-state. 7220-only at the moment.
+ */
+ spinlock_t ipath_sdepb_lock;
+ u8 ipath_presets_needed; /* Set if presets to be restored next DOWN */
};
/* ipath_hol_state values (stopping/starting user proc, send flushing) */
@@ -724,11 +811,35 @@ struct ipath_devdata {
#define IPATH_HOL_DOWNSTOP 0
#define IPATH_HOL_DOWNCONT 1
+/* bit positions for sdma_status */
+#define IPATH_SDMA_ABORTING 0
+#define IPATH_SDMA_DISARMED 1
+#define IPATH_SDMA_DISABLED 2
+#define IPATH_SDMA_LAYERBUF 3
+#define IPATH_SDMA_RUNNING 62
+#define IPATH_SDMA_SHUTDOWN 63
+
+/* bit combinations that correspond to abort states */
+#define IPATH_SDMA_ABORT_NONE 0
+#define IPATH_SDMA_ABORT_ABORTING (1UL << IPATH_SDMA_ABORTING)
+#define IPATH_SDMA_ABORT_DISARMED ((1UL << IPATH_SDMA_ABORTING) | \
+ (1UL << IPATH_SDMA_DISARMED))
+#define IPATH_SDMA_ABORT_DISABLED ((1UL << IPATH_SDMA_ABORTING) | \
+ (1UL << IPATH_SDMA_DISABLED))
+#define IPATH_SDMA_ABORT_ABORTED ((1UL << IPATH_SDMA_ABORTING) | \
+ (1UL << IPATH_SDMA_DISARMED) | (1UL << IPATH_SDMA_DISABLED))
+#define IPATH_SDMA_ABORT_MASK ((1UL<<IPATH_SDMA_ABORTING) | \
+ (1UL << IPATH_SDMA_DISARMED) | (1UL << IPATH_SDMA_DISABLED))
+
+#define IPATH_SDMA_BUF_NONE 0
+#define IPATH_SDMA_BUF_MASK (1UL<<IPATH_SDMA_LAYERBUF)
+
/* Private data for file operations */
struct ipath_filedata {
struct ipath_portdata *pd;
unsigned subport;
unsigned tidcursor;
+ struct ipath_user_sdma_queue *pq;
};
extern struct list_head ipath_dev_list;
extern spinlock_t ipath_devs_lock;
@@ -796,6 +907,10 @@ void ipath_disable_armlaunch(struct ipath_devdata *);
void ipath_hol_down(struct ipath_devdata *);
void ipath_hol_up(struct ipath_devdata *);
void ipath_hol_event(unsigned long);
+void ipath_toggle_rclkrls(struct ipath_devdata *);
+void ipath_sd7220_clr_ibpar(struct ipath_devdata *);
+void ipath_set_relock_poll(struct ipath_devdata *, int);
+void ipath_shutdown_relock_poll(struct ipath_devdata *);
/* for use in system calls, where we want to know device type, etc. */
#define port_fp(fp) ((struct ipath_filedata *)(fp)->private_data)->pd
@@ -803,6 +918,8 @@ void ipath_hol_event(unsigned long);
((struct ipath_filedata *)(fp)->private_data)->subport
#define tidcursor_fp(fp) \
((struct ipath_filedata *)(fp)->private_data)->tidcursor
+#define user_sdma_queue_fp(fp) \
+ ((struct ipath_filedata *)(fp)->private_data)->pq
/*
* values for ipath_flags
@@ -852,9 +969,16 @@ void ipath_hol_event(unsigned long);
/* Use GPIO interrupts for new counters */
#define IPATH_GPIO_ERRINTRS 0x100000
#define IPATH_SWAP_PIOBUFS 0x200000
+ /* Supports Send DMA */
+#define IPATH_HAS_SEND_DMA 0x400000
+ /* Supports Send Count (not just word count) in PBC */
+#define IPATH_HAS_PBC_CNT 0x800000
/* Suppress heartbeat, even if turning off loopback */
#define IPATH_NO_HRTBT 0x1000000
+#define IPATH_HAS_THRESH_UPDATE 0x4000000
#define IPATH_HAS_MULT_IB_SPEED 0x8000000
+#define IPATH_IB_AUTONEG_INPROG 0x10000000
+#define IPATH_IB_AUTONEG_FAILED 0x20000000
/* Linkdown-disable intentionally, Do not attempt to bring up */
#define IPATH_IB_LINK_DISABLED 0x40000000
#define IPATH_IB_FORCE_NOTIFY 0x80000000 /* force notify on next ib change */
@@ -879,6 +1003,7 @@ void ipath_free_data(struct ipath_portdata *dd);
u32 __iomem *ipath_getpiobuf(struct ipath_devdata *, u32, u32 *);
void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start,
unsigned len, int avail);
+void ipath_init_iba7220_funcs(struct ipath_devdata *);
void ipath_init_iba6120_funcs(struct ipath_devdata *);
void ipath_init_iba6110_funcs(struct ipath_devdata *);
void ipath_get_eeprom_info(struct ipath_devdata *);
@@ -897,6 +1022,33 @@ void signal_ib_event(struct ipath_devdata *dd, enum ib_event_type ev);
#define IPATH_LED_LOG 2 /* Logical (link) YELLOW LED */
void ipath_set_led_override(struct ipath_devdata *dd, unsigned int val);
+/* send dma routines */
+int setup_sdma(struct ipath_devdata *);
+void teardown_sdma(struct ipath_devdata *);
+void ipath_sdma_intr(struct ipath_devdata *);
+int ipath_sdma_verbs_send(struct ipath_devdata *, struct ipath_sge_state *,
+ u32, struct ipath_verbs_txreq *);
+/* ipath_sdma_lock should be locked before calling this. */
+int ipath_sdma_make_progress(struct ipath_devdata *dd);
+
+/* must be called under ipath_sdma_lock */
+static inline u16 ipath_sdma_descq_freecnt(const struct ipath_devdata *dd)
+{
+ return dd->ipath_sdma_descq_cnt -
+ (dd->ipath_sdma_descq_added - dd->ipath_sdma_descq_removed) -
+ 1 - dd->ipath_sdma_desc_nreserved;
+}
+
+static inline void ipath_sdma_desc_reserve(struct ipath_devdata *dd, u16 cnt)
+{
+ dd->ipath_sdma_desc_nreserved += cnt;
+}
+
+static inline void ipath_sdma_desc_unreserve(struct ipath_devdata *dd, u16 cnt)
+{
+ dd->ipath_sdma_desc_nreserved -= cnt;
+}
+
/*
* number of words used for protocol header if not set by ipath_userinit();
*/
@@ -925,8 +1077,7 @@ void ipath_write_kreg_port(const struct ipath_devdata *, ipath_kreg,
/*
* At the moment, none of the s-registers are writable, so no
- * ipath_write_sreg(), and none of the c-registers are writable, so no
- * ipath_write_creg().
+ * ipath_write_sreg().
*/
/**
@@ -1123,6 +1274,7 @@ int ipathfs_remove_device(struct ipath_devdata *);
dma_addr_t ipath_map_page(struct pci_dev *, struct page *, unsigned long,
size_t, int);
dma_addr_t ipath_map_single(struct pci_dev *, void *, size_t, int);
+const char *ipath_get_unit_name(int unit);
/*
* Flush write combining store buffers (if present) and perform a write
@@ -1137,11 +1289,6 @@ dma_addr_t ipath_map_single(struct pci_dev *, void *, size_t, int);
extern unsigned ipath_debug; /* debugging bit mask */
extern unsigned ipath_linkrecovery;
extern unsigned ipath_mtu4096;
-
-#define IPATH_MAX_PARITY_ATTEMPTS 10000 /* max times to try recovery */
-
-const char *ipath_get_unit_name(int unit);
-
extern struct mutex ipath_mutex;
#define IPATH_DRV_NAME "ib_ipath"