/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright IBM Corp. 2000, 2008 * Author(s): Utz Bacher <utz.bacher@de.ibm.com> * Jan Glauber <jang@linux.vnet.ibm.com> * */ #ifndef __QDIO_H__ #define __QDIO_H__ #include <linux/interrupt.h> #include <asm/cio.h> #include <asm/ccwdev.h> /* only use 4 queues to save some cachelines */ #define QDIO_MAX_QUEUES_PER_IRQ 4 #define QDIO_MAX_BUFFERS_PER_Q 128 #define QDIO_MAX_BUFFERS_MASK (QDIO_MAX_BUFFERS_PER_Q - 1) #define QDIO_MAX_ELEMENTS_PER_BUFFER 16 #define QDIO_SBAL_SIZE 256 #define QDIO_QETH_QFMT 0 #define QDIO_ZFCP_QFMT 1 #define QDIO_IQDIO_QFMT 2 /** * struct qdesfmt0 - queue descriptor, format 0 * @sliba: storage list information block address * @sla: storage list address * @slsba: storage list state block address * @akey: access key for DLIB * @bkey: access key for SL * @ckey: access key for SBALs * @dkey: access key for SLSB */ struct qdesfmt0 { u64 sliba; u64 sla; u64 slsba; u32 : 32; u32 akey : 4; u32 bkey : 4; u32 ckey : 4; u32 dkey : 4; u32 : 16; } __attribute__ ((packed)); #define QDR_AC_MULTI_BUFFER_ENABLE 0x01 /** * struct qdr - queue description record (QDR) * @qfmt: queue format * @pfmt: implementation dependent parameter format * @ac: adapter characteristics * @iqdcnt: input queue descriptor count * @oqdcnt: output queue descriptor count * @iqdsz: inpout queue descriptor size * @oqdsz: output queue descriptor size * @qiba: queue information block address * @qkey: queue information block key * @qdf0: queue descriptions */ struct qdr { u32 qfmt : 8; u32 pfmt : 8; u32 : 8; u32 ac : 8; u32 : 8; u32 iqdcnt : 8; u32 : 8; u32 oqdcnt : 8; u32 : 8; u32 iqdsz : 8; u32 : 8; u32 oqdsz : 8; /* private: */ u32 res[9]; /* public: */ u64 qiba; u32 : 32; u32 qkey : 4; u32 : 28; struct qdesfmt0 qdf0[126]; } __packed __aligned(PAGE_SIZE); #define QIB_AC_OUTBOUND_PCI_SUPPORTED 0x40 #define QIB_RFLAGS_ENABLE_QEBSM 0x80 #define QIB_RFLAGS_ENABLE_DATA_DIV 0x02 /** * struct qib - queue information block (QIB) * @qfmt: queue format * @pfmt: implementation dependent parameter format * @rflags: QEBSM * @ac: adapter characteristics * @isliba: absolute address of first input SLIB * @osliba: absolute address of first output SLIB * @ebcnam: adapter identifier in EBCDIC * @parm: implementation dependent parameters */ struct qib { u32 qfmt : 8; u32 pfmt : 8; u32 rflags : 8; u32 ac : 8; u32 : 32; u64 isliba; u64 osliba; u32 : 32; u32 : 32; u8 ebcnam[8]; /* private: */ u8 res[88]; /* public: */ u8 parm[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); /** * struct slibe - storage list information block element (SLIBE) * @parms: implementation dependent parameters */ struct slibe { u64 parms; }; /** * struct qaob - queue asynchronous operation block * @res0: reserved parameters * @res1: reserved parameter * @res2: reserved parameter * @res3: reserved parameter * @aorc: asynchronous operation return code * @flags: internal flags * @cbtbs: control block type * @sb_count: number of storage blocks * @sba: storage block element addresses * @dcount: size of storage block elements * @user0: user defineable value * @res4: reserved paramater * @user1: user defineable value * @user2: user defineable value */ struct qaob { u64 res0[6]; u8 res1; u8 res2; u8 res3; u8 aorc; u8 flags; u16 cbtbs; u8 sb_count; u64 sba[QDIO_MAX_ELEMENTS_PER_BUFFER]; u16 dcount[QDIO_MAX_ELEMENTS_PER_BUFFER]; u64 user0; u64 res4[2]; u64 user1; u64 user2; } __attribute__ ((packed, aligned(256))); /** * struct slib - storage list information block (SLIB) * @nsliba: next SLIB address (if any) * @sla: SL address * @slsba: SLSB address * @slibe: SLIB elements */ struct slib { u64 nsliba; u64 sla; u64 slsba; /* private: */ u8 res[1000]; /* public: */ struct slibe slibe[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(2048))); #define SBAL_EFLAGS_LAST_ENTRY 0x40 #define SBAL_EFLAGS_CONTIGUOUS 0x20 #define SBAL_EFLAGS_FIRST_FRAG 0x04 #define SBAL_EFLAGS_MIDDLE_FRAG 0x08 #define SBAL_EFLAGS_LAST_FRAG 0x0c #define SBAL_EFLAGS_MASK 0x6f #define SBAL_SFLAGS0_PCI_REQ 0x40 #define SBAL_SFLAGS0_DATA_CONTINUATION 0x20 /* Awesome OpenFCP extensions */ #define SBAL_SFLAGS0_TYPE_STATUS 0x00 #define SBAL_SFLAGS0_TYPE_WRITE 0x08 #define SBAL_SFLAGS0_TYPE_READ 0x10 #define SBAL_SFLAGS0_TYPE_WRITE_READ 0x18 #define SBAL_SFLAGS0_MORE_SBALS 0x04 #define SBAL_SFLAGS0_COMMAND 0x02 #define SBAL_SFLAGS0_LAST_SBAL 0x00 #define SBAL_SFLAGS0_ONLY_SBAL SBAL_SFLAGS0_COMMAND #define SBAL_SFLAGS0_MIDDLE_SBAL SBAL_SFLAGS0_MORE_SBALS #define SBAL_SFLAGS0_FIRST_SBAL (SBAL_SFLAGS0_MORE_SBALS | SBAL_SFLAGS0_COMMAND) /** * struct qdio_buffer_element - SBAL entry * @eflags: SBAL entry flags * @scount: SBAL count * @sflags: whole SBAL flags * @length: length * @addr: address */ struct qdio_buffer_element { u8 eflags; /* private: */ u8 res1; /* public: */ u8 scount; u8 sflags; u32 length; void *addr; } __attribute__ ((packed, aligned(16))); /** * struct qdio_buffer - storage block address list (SBAL) * @element: SBAL entries */ struct qdio_buffer { struct qdio_buffer_element element[QDIO_MAX_ELEMENTS_PER_BUFFER]; } __attribute__ ((packed, aligned(256))); /** * struct sl_element - storage list entry * @sbal: absolute SBAL address */ struct sl_element { u64 sbal; } __attribute__ ((packed)); /** * struct sl - storage list (SL) * @element: SL entries */ struct sl { struct sl_element element[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(1024))); /** * struct slsb - storage list state block (SLSB) * @val: state per buffer */ struct slsb { u8 val[QDIO_MAX_BUFFERS_PER_Q]; } __attribute__ ((packed, aligned(256))); /** * struct qdio_outbuf_state - SBAL related asynchronous operation information * (for communication with upper layer programs) * (only required for use with completion queues) * @flags: flags indicating state of buffer * @aob: pointer to QAOB used for the particular SBAL * @user: pointer to upper layer program's state information related to SBAL * (stored in user1 data of QAOB) */ struct qdio_outbuf_state { u8 flags; struct qaob *aob; void *user; }; #define QDIO_OUTBUF_STATE_FLAG_PENDING 0x01 #define CHSC_AC1_INITIATE_INPUTQ 0x80 /* qdio adapter-characteristics-1 flag */ #define AC1_SIGA_INPUT_NEEDED 0x40 /* process input queues */ #define AC1_SIGA_OUTPUT_NEEDED 0x20 /* process output queues */ #define AC1_SIGA_SYNC_NEEDED 0x10 /* ask hypervisor to sync */ #define AC1_AUTOMATIC_SYNC_ON_THININT 0x08 /* set by hypervisor */ #define AC1_AUTOMATIC_SYNC_ON_OUT_PCI 0x04 /* set by hypervisor */ #define AC1_SC_QEBSM_AVAILABLE 0x02 /* available for subchannel */ #define AC1_SC_QEBSM_ENABLED 0x01 /* enabled for subchannel */ #define CHSC_AC2_MULTI_BUFFER_AVAILABLE 0x0080 #define CHSC_AC2_MULTI_BUFFER_ENABLED 0x0040 #define CHSC_AC2_DATA_DIV_AVAILABLE 0x0010 #define CHSC_AC2_DATA_DIV_ENABLED 0x0002 #define CHSC_AC3_FORMAT2_CQ_AVAILABLE 0x8000 struct qdio_ssqd_desc { u8 flags; u8:8; u16 sch; u8 qfmt; u8 parm; u8 qdioac1; u8 sch_class; u8 pcnt; u8 icnt; u8:8; u8 ocnt; u8:8; u8 mbccnt; u16 qdioac2; u64 sch_token; u8 mro; u8 mri; u16 qdioac3; u16:16; u8:8; u8 mmwc; } __attribute__ ((packed)); /* params are: ccw_device, qdio_error, queue_number, first element processed, number of elements processed, int_parm */ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int, int, int, unsigned long); /* qdio errors reported to the upper-layer program */ #define QDIO_ERROR_ACTIVATE 0x0001 #define QDIO_ERROR_GET_BUF_STATE 0x0002 #define QDIO_ERROR_SET_BUF_STATE 0x0004 #define QDIO_ERROR_SLSB_STATE 0x0100 #define QDIO_ERROR_FATAL 0x00ff #define QDIO_ERROR_TEMPORARY 0xff00 /* for qdio_cleanup */ #define QDIO_FLAG_CLEANUP_USING_CLEAR 0x01 #define QDIO_FLAG_CLEANUP_USING_HALT 0x02 /** * struct qdio_initialize - qdio initialization data * @cdev: associated ccw device * @q_format: queue format * @adapter_name: name for the adapter * @qib_param_field_format: format for qib_parm_field * @qib_param_field: pointer to 128 bytes or NULL, if no param field * @qib_rflags: rflags to set * @input_slib_elements: pointer to no_input_qs * 128 words of data or NULL * @output_slib_elements: pointer to no_output_qs * 128 words of data or NULL * @no_input_qs: number of input queues * @no_output_qs: number of output queues * @input_handler: handler to be called for input queues * @output_handler: handler to be called for output queues * @queue_start_poll_array: polling handlers (one per input queue or NULL) * @int_parm: interruption parameter * @input_sbal_addr_array: address of no_input_qs * 128 pointers * @output_sbal_addr_array: address of no_output_qs * 128 pointers * @output_sbal_state_array: no_output_qs * 128 state info (for CQ or NULL) */ struct qdio_initialize { struct ccw_device *cdev; unsigned char q_format; unsigned char qdr_ac; unsigned char adapter_name[8]; unsigned int qib_param_field_format; unsigned char *qib_param_field; unsigned char qib_rflags; unsigned long *input_slib_elements; unsigned long *output_slib_elements; unsigned int no_input_qs; unsigned int no_output_qs; qdio_handler_t *input_handler; qdio_handler_t *output_handler; void (**queue_start_poll_array) (struct ccw_device *, int, unsigned long); int scan_threshold; unsigned long int_parm; void **input_sbal_addr_array; void **output_sbal_addr_array; struct qdio_outbuf_state *output_sbal_state_array; }; /** * enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc() * @l3_ipv6_addr: entry contains IPv6 address * @l3_ipv4_addr: entry contains IPv4 address * @l2_addr_lnid: entry contains MAC address and VLAN ID */ enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid}; /** * struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc() * @nit: Network interface token * @addr: Address of one of the three types * * The struct is passed to the callback function by qdio_brinfo_desc() */ struct qdio_brinfo_entry_l3_ipv6 { u64 nit; struct { unsigned char _s6_addr[16]; } addr; } __packed; struct qdio_brinfo_entry_l3_ipv4 { u64 nit; struct { uint32_t _s_addr; } addr; } __packed; struct qdio_brinfo_entry_l2 { u64 nit; struct { u8 mac[6]; u16 lnid; } addr_lnid; } __packed; #define QDIO_STATE_INACTIVE 0x00000002 /* after qdio_cleanup */ #define QDIO_STATE_ESTABLISHED 0x00000004 /* after qdio_establish */ #define QDIO_STATE_ACTIVE 0x00000008 /* after qdio_activate */ #define QDIO_STATE_STOPPED 0x00000010 /* after queues went down */ #define QDIO_FLAG_SYNC_INPUT 0x01 #define QDIO_FLAG_SYNC_OUTPUT 0x02 #define QDIO_FLAG_PCI_OUT 0x10 int qdio_alloc_buffers(struct qdio_buffer **buf, unsigned int count); void qdio_free_buffers(struct qdio_buffer **buf, unsigned int count); void qdio_reset_buffers(struct qdio_buffer **buf, unsigned int count); extern int qdio_allocate(struct qdio_initialize *); extern int qdio_establish(struct qdio_initialize *); extern int qdio_activate(struct ccw_device *); extern void qdio_release_aob(struct qaob *); extern int do_QDIO(struct ccw_device *, unsigned int, int, unsigned int, unsigned int); extern int qdio_start_irq(struct ccw_device *, int); extern int qdio_stop_irq(struct ccw_device *, int); extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *); extern int qdio_shutdown(struct ccw_device *, int); extern int qdio_free(struct ccw_device *); extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *); extern int qdio_pnso_brinfo(struct subchannel_id schid, int cnc, u16 *response, void (*cb)(void *priv, enum qdio_brinfo_entry_type type, void *entry), void *priv); #endif /* __QDIO_H__ */
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fpu | Folder | 0755 |
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trace | Folder | 0755 |
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Kbuild | File | 557 B | 0644 |
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airq.h | File | 3.02 KB | 0644 |
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alternative-asm.h | File | 3.07 KB | 0644 |
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alternative.h | File | 4.99 KB | 0644 |
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ap.h | File | 9.9 KB | 0644 |
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appldata.h | File | 1.54 KB | 0644 |
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archrandom.h | File | 1.17 KB | 0644 |
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asm-prototypes.h | File | 227 B | 0644 |
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atomic.h | File | 5.1 KB | 0644 |
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atomic_ops.h | File | 4.02 KB | 0644 |
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barrier.h | File | 1.84 KB | 0644 |
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bitops.h | File | 10.13 KB | 0644 |
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bug.h | File | 1.49 KB | 0644 |
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bugs.h | File | 441 B | 0644 |
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cache.h | File | 387 B | 0644 |
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ccwdev.h | File | 7.99 KB | 0644 |
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ccwgroup.h | File | 2.53 KB | 0644 |
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checksum.h | File | 3.24 KB | 0644 |
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chpid.h | File | 974 B | 0644 |
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cio.h | File | 8.01 KB | 0644 |
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clp.h | File | 1.32 KB | 0644 |
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cmb.h | File | 425 B | 0644 |
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cmpxchg.h | File | 1.76 KB | 0644 |
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compat.h | File | 7.9 KB | 0644 |
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cpacf.h | File | 16.8 KB | 0644 |
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cpcmd.h | File | 1.11 KB | 0644 |
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cpu.h | File | 549 B | 0644 |
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cpu_mf.h | File | 8.99 KB | 0644 |
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cpufeature.h | File | 963 B | 0644 |
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cputime.h | File | 805 B | 0644 |
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crw.h | File | 1.86 KB | 0644 |
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css_chars.h | File | 769 B | 0644 |
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ctl_reg.h | File | 2.89 KB | 0644 |
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current.h | File | 405 B | 0644 |
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debug.h | File | 8.1 KB | 0644 |
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delay.h | File | 721 B | 0644 |
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diag.h | File | 5.94 KB | 0644 |
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dis.h | File | 637 B | 0644 |
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dma-mapping.h | File | 621 B | 0644 |
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dma.h | File | 456 B | 0644 |
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eadm.h | File | 2.03 KB | 0644 |
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ebcdic.h | File | 1.41 KB | 0644 |
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elf.h | File | 10.36 KB | 0644 |
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exec.h | File | 269 B | 0644 |
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extable.h | File | 875 B | 0644 |
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extmem.h | File | 804 B | 0644 |
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facility.h | File | 2.44 KB | 0644 |
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fcx.h | File | 7.91 KB | 0644 |
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ftrace.h | File | 1.66 KB | 0644 |
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futex.h | File | 2.09 KB | 0644 |
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gmap.h | File | 4.93 KB | 0644 |
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hardirq.h | File | 670 B | 0644 |
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hugetlb.h | File | 2.87 KB | 0644 |
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hw_irq.h | File | 249 B | 0644 |
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idals.h | File | 5.22 KB | 0644 |
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idle.h | File | 709 B | 0644 |
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io.h | File | 2.03 KB | 0644 |
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ipl.h | File | 3.6 KB | 0644 |
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irq.h | File | 2.55 KB | 0644 |
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irqflags.h | File | 1.76 KB | 0644 |
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isc.h | File | 1000 B | 0644 |
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itcw.h | File | 950 B | 0644 |
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jump_label.h | File | 1.36 KB | 0644 |
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kdebug.h | File | 386 B | 0644 |
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kexec.h | File | 1.32 KB | 0644 |
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kprobes.h | File | 2.24 KB | 0644 |
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kvm_host.h | File | 22.24 KB | 0644 |
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kvm_para.h | File | 5.78 KB | 0644 |
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linkage.h | File | 633 B | 0644 |
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livepatch.h | File | 461 B | 0644 |
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lowcore.h | File | 6.29 KB | 0644 |
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mmu.h | File | 1.19 KB | 0644 |
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mmu_context.h | File | 3.84 KB | 0644 |
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mmzone.h | File | 316 B | 0644 |
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module.h | File | 802 B | 0644 |
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nmi.h | File | 3.44 KB | 0644 |
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nospec-branch.h | File | 342 B | 0644 |
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nospec-insn.h | File | 3.81 KB | 0644 |
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numa.h | File | 730 B | 0644 |
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os_info.h | File | 1.1 KB | 0644 |
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page-states.h | File | 486 B | 0644 |
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page.h | File | 5.12 KB | 0644 |
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pci.h | File | 6.26 KB | 0644 |
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pci_clp.h | File | 4.25 KB | 0644 |
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pci_debug.h | File | 608 B | 0644 |
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pci_dma.h | File | 5.7 KB | 0644 |
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pci_insn.h | File | 2.59 KB | 0644 |
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pci_io.h | File | 4.58 KB | 0644 |
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percpu.h | File | 6.44 KB | 0644 |
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perf_event.h | File | 2.71 KB | 0644 |
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pgalloc.h | File | 4.32 KB | 0644 |
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pgtable.h | File | 47.7 KB | 0644 |
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pkey.h | File | 4.23 KB | 0644 |
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preempt.h | File | 3.25 KB | 0644 |
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processor.h | File | 10.42 KB | 0644 |
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ptrace.h | File | 5.27 KB | 0644 |
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qdio.h | File | 11.67 KB | 0644 |
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reset.h | File | 471 B | 0644 |
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runtime_instr.h | File | 1.76 KB | 0644 |
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schid.h | File | 525 B | 0644 |
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sclp.h | File | 3.38 KB | 0644 |
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scsw.h | File | 24.1 KB | 0644 |
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seccomp.h | File | 516 B | 0644 |
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sections.h | File | 155 B | 0644 |
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segment.h | File | 93 B | 0644 |
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serial.h | File | 147 B | 0644 |
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set_memory.h | File | 779 B | 0644 |
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setup.h | File | 4.44 KB | 0644 |
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shmparam.h | File | 285 B | 0644 |
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signal.h | File | 644 B | 0644 |
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sigp.h | File | 1.8 KB | 0644 |
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smp.h | File | 2.45 KB | 0644 |
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sparsemem.h | File | 214 B | 0644 |
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spinlock.h | File | 3.53 KB | 0644 |
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spinlock_types.h | File | 437 B | 0644 |
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stp.h | File | 1.26 KB | 0644 |
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string.h | File | 4.5 KB | 0644 |
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switch_to.h | File | 1.37 KB | 0644 |
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syscall.h | File | 2.63 KB | 0644 |
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sysinfo.h | File | 4.22 KB | 0644 |
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termios.h | File | 685 B | 0644 |
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thread_info.h | File | 3.15 KB | 0644 |
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timex.h | File | 6.15 KB | 0644 |
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tlb.h | File | 5.71 KB | 0644 |
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tlbflush.h | File | 3.52 KB | 0644 |
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topology.h | File | 2.69 KB | 0644 |
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uaccess.h | File | 6.57 KB | 0644 |
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unistd.h | File | 1.03 KB | 0644 |
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uprobes.h | File | 588 B | 0644 |
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user.h | File | 3.3 KB | 0644 |
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vdso.h | File | 1.8 KB | 0644 |
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vga.h | File | 170 B | 0644 |
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vtime.h | File | 182 B | 0644 |
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vtimer.h | File | 866 B | 0644 |
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vx-insn.h | File | 10.66 KB | 0644 |
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xor.h | File | 454 B | 0644 |
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