/* Volatile dequeues */ struct {
atomic_t available; /* indicates if a command can be sent */
u32 valid_bit; /* 0x00 or 0x80 */ struct dpaa2_dq *storage; /* NULL if DQRR */
} vdq;
/** * qbman_swp_enqueue() - Issue an enqueue command * @s: the software portal used for enqueue * @d: the enqueue descriptor * @fd: the frame descriptor to be enqueued * * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
*/ staticinlineint
qbman_swp_enqueue(struct qbman_swp *s, conststruct qbman_eq_desc *d, conststruct dpaa2_fd *fd)
{ return qbman_swp_enqueue_ptr(s, d, fd);
}
/** * qbman_swp_enqueue_multiple() - Issue a multi enqueue command * using one enqueue descriptor * @s: the software portal used for enqueue * @d: the enqueue descriptor * @fd: table pointer of frame descriptor table to be enqueued * @flags: table pointer of QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL * @num_frames: number of fd to be enqueued * * Return the number of fd enqueued, or a negative error number.
*/ staticinlineint
qbman_swp_enqueue_multiple(struct qbman_swp *s, conststruct qbman_eq_desc *d, conststruct dpaa2_fd *fd,
uint32_t *flags, int num_frames)
{ return qbman_swp_enqueue_multiple_ptr(s, d, fd, flags, num_frames);
}
/** * qbman_swp_enqueue_multiple_desc() - Issue a multi enqueue command * using multiple enqueue descriptor * @s: the software portal used for enqueue * @d: table of minimal enqueue descriptor * @fd: table pointer of frame descriptor table to be enqueued * @num_frames: number of fd to be enqueued * * Return the number of fd enqueued, or a negative error number.
*/ staticinlineint
qbman_swp_enqueue_multiple_desc(struct qbman_swp *s, conststruct qbman_eq_desc *d, conststruct dpaa2_fd *fd, int num_frames)
{ return qbman_swp_enqueue_multiple_desc_ptr(s, d, fd, num_frames);
}
/** * qbman_result_is_DQ() - check if the dequeue result is a dequeue response * @dq: the dequeue result to be checked * * DQRR entries may contain non-dequeue results, ie. notifications
*/ staticinlineint qbman_result_is_DQ(conststruct dpaa2_dq *dq)
{ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_DQ);
}
/** * qbman_result_is_SCN() - Check the dequeue result is notification or not * @dq: the dequeue result to be checked *
*/ staticinlineint qbman_result_is_SCN(conststruct dpaa2_dq *dq)
{ return !qbman_result_is_DQ(dq);
}
/** * qbman_result_SCN_state() - Get the state field in State-change notification
*/ staticinline u8 qbman_result_SCN_state(conststruct dpaa2_dq *scn)
{ return scn->scn.state;
}
#define SCN_RID_MASK 0x00FFFFFF
/** * qbman_result_SCN_rid() - Get the resource id in State-change notification
*/ staticinline u32 qbman_result_SCN_rid(conststruct dpaa2_dq *scn)
{ return le32_to_cpu(scn->scn.rid_tok) & SCN_RID_MASK;
}
/** * qbman_result_SCN_ctx() - Get the context data in State-change notification
*/ staticinline u64 qbman_result_SCN_ctx(conststruct dpaa2_dq *scn)
{ return le64_to_cpu(scn->scn.ctx);
}
/** * qbman_swp_fq_schedule() - Move the fq to the scheduled state * @s: the software portal object * @fqid: the index of frame queue to be scheduled * * There are a couple of different ways that a FQ can end up parked state, * This schedules it. * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_fq_schedule(struct qbman_swp *s, u32 fqid)
{ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_SCHEDULE);
}
/** * qbman_swp_fq_force() - Force the FQ to fully scheduled state * @s: the software portal object * @fqid: the index of frame queue to be forced * * Force eligible will force a tentatively-scheduled FQ to be fully-scheduled * and thus be available for selection by any channel-dequeuing behaviour (push * or pull). If the FQ is subsequently "dequeued" from the channel and is still * empty at the time this happens, the resulting dq_entry will have no FD. * (qbman_result_DQ_fd() will return NULL.) * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_fq_force(struct qbman_swp *s, u32 fqid)
{ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_FORCE);
}
/** * qbman_swp_fq_xon() - sets FQ flow-control to XON * @s: the software portal object * @fqid: the index of frame queue * * This setting doesn't affect enqueues to the FQ, just dequeues. * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_fq_xon(struct qbman_swp *s, u32 fqid)
{ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XON);
}
/** * qbman_swp_fq_xoff() - sets FQ flow-control to XOFF * @s: the software portal object * @fqid: the index of frame queue * * This setting doesn't affect enqueues to the FQ, just dequeues. * XOFF FQs will remain in the tenatively-scheduled state, even when * non-empty, meaning they won't be selected for scheduled dequeuing. * If a FQ is changed to XOFF after it had already become truly-scheduled * to a channel, and a pull dequeue of that channel occurs that selects * that FQ for dequeuing, then the resulting dq_entry will have no FD. * (qbman_result_DQ_fd() will return NULL.) * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_fq_xoff(struct qbman_swp *s, u32 fqid)
{ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XOFF);
}
/* If the user has been allocated a channel object that is going to generate * CDANs to another channel, then the qbman_swp_CDAN* functions will be * necessary. * * CDAN-enabled channels only generate a single CDAN notification, after which * they need to be reenabled before they'll generate another. The idea is * that pull dequeuing will occur in reaction to the CDAN, followed by a * reenable step. Each function generates a distinct command to hardware, so a * combination function is provided if the user wishes to modify the "context" * (which shows up in each CDAN message) each time they reenable, as a single * command to hardware.
*/
/** * qbman_swp_CDAN_set_context() - Set CDAN context * @s: the software portal object * @channelid: the channel index * @ctx: the context to be set in CDAN * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_CDAN_set_context(struct qbman_swp *s, u16 channelid,
u64 ctx)
{ return qbman_swp_CDAN_set(s, channelid,
CODE_CDAN_WE_CTX,
0, ctx);
}
/** * qbman_swp_CDAN_enable() - Enable CDAN for the channel * @s: the software portal object * @channelid: the index of the channel to generate CDAN * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_CDAN_enable(struct qbman_swp *s, u16 channelid)
{ return qbman_swp_CDAN_set(s, channelid,
CODE_CDAN_WE_EN,
1, 0);
}
/** * qbman_swp_CDAN_disable() - disable CDAN for the channel * @s: the software portal object * @channelid: the index of the channel to generate CDAN * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_CDAN_disable(struct qbman_swp *s, u16 channelid)
{ return qbman_swp_CDAN_set(s, channelid,
CODE_CDAN_WE_EN,
0, 0);
}
/** * qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN * @s: the software portal object * @channelid: the index of the channel to generate CDAN * @ctx:i the context set in CDAN * * Return 0 for success, or negative error code for failure.
*/ staticinlineint qbman_swp_CDAN_set_context_enable(struct qbman_swp *s,
u16 channelid,
u64 ctx)
{ return qbman_swp_CDAN_set(s, channelid,
CODE_CDAN_WE_EN | CODE_CDAN_WE_CTX,
1, ctx);
}
/* Wraps up submit + poll-for-result */ staticinlinevoid *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd,
u8 cmd_verb)
{ int loopvar = 2000;
qbman_swp_mc_submit(swp, cmd, cmd_verb);
do {
cmd = qbman_swp_mc_result(swp);
} while (!cmd && loopvar--);
/** * qbman_swp_release() - Issue a buffer release command * @s: the software portal object * @d: the release descriptor * @buffers: a pointer pointing to the buffer address to be released * @num_buffers: number of buffers to be released, must be less than 8 * * Return 0 for success, -EBUSY if the release command ring is not ready.
*/ staticinlineint qbman_swp_release(struct qbman_swp *s, conststruct qbman_release_desc *d, const u64 *buffers, unsignedint num_buffers)
{ return qbman_swp_release_ptr(s, d, buffers, num_buffers);
}
/** * qbman_swp_pull() - Issue the pull dequeue command * @s: the software portal object * @d: the software portal descriptor which has been configured with * the set of qbman_pull_desc_set_*() calls * * Return 0 for success, and -EBUSY if the software portal is not ready * to do pull dequeue.
*/ staticinlineint qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
{ return qbman_swp_pull_ptr(s, d);
}
/** * qbman_swp_dqrr_next() - Get an valid DQRR entry * @s: the software portal object * * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry * only once, so repeated calls can return a sequence of DQRR entries, without * requiring they be consumed immediately or in any particular order.
*/ staticinlineconststruct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
{ return qbman_swp_dqrr_next_ptr(s);
}
int qbman_swp_set_irq_coalescing(struct qbman_swp *p, u32 irq_threshold,
u32 irq_holdoff);
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