IB/qib: Log all SDMA errors unconditionally (0b3ddf38) · Commits · e / devices / android_kernel_teracube_emerald

drivers/infiniband/hw/qib/qib.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1348,7 +1348,7 @@ static inline int __qib_sdma_running(struct qib_pportdata *ppd)
	return ppd->sdma_state.current_state == qib_sdma_state_s99_running;		return ppd->sdma_state.current_state == qib_sdma_state_s99_running;
	}		}
	int qib_sdma_running(struct qib_pportdata *);		int qib_sdma_running(struct qib_pportdata *);
			void dump_sdma_state(struct qib_pportdata *ppd);
	void __qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events);		void __qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events);
	void qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events);		void qib_sdma_process_event(struct qib_pportdata *, enum qib_sdma_events);

drivers/infiniband/hw/qib/qib_iba7322.c

+114 −0

Original line number	Original line	Diff line number	Diff line
	@@ -83,6 +83,7 @@ static void ibsd_wr_allchans(struct qib_pportdata *, int, unsigned, unsigned);
	static void serdes_7322_los_enable(struct qib_pportdata *, int);		static void serdes_7322_los_enable(struct qib_pportdata *, int);
	static int serdes_7322_init_old(struct qib_pportdata *);		static int serdes_7322_init_old(struct qib_pportdata *);
	static int serdes_7322_init_new(struct qib_pportdata *);		static int serdes_7322_init_new(struct qib_pportdata *);
			static void dump_sdma_7322_state(struct qib_pportdata *);

	#define BMASK(msb, lsb) (((1 << ((msb) + 1 - (lsb))) - 1) << (lsb))		#define BMASK(msb, lsb) (((1 << ((msb) + 1 - (lsb))) - 1) << (lsb))

	@@ -652,6 +653,7 @@ struct qib_chippport_specific {
	u8 ibmalfusesnap;		u8 ibmalfusesnap;
	struct qib_qsfp_data qsfp_data;		struct qib_qsfp_data qsfp_data;
	char epmsgbuf[192]; /* for port error interrupt msg buffer */		char epmsgbuf[192]; /* for port error interrupt msg buffer */
			char sdmamsgbuf[192]; /* for per-port sdma error messages */
	};		};

	static struct {		static struct {
	@@ -1601,6 +1603,15 @@ static void sdma_7322_p_errors(struct qib_pportdata *ppd, u64 errs)

	spin_lock_irqsave(&ppd->sdma_lock, flags);		spin_lock_irqsave(&ppd->sdma_lock, flags);

			if (errs != QIB_E_P_SDMAHALT) {
			/* SDMA errors have QIB_E_P_SDMAHALT and another bit set */
			qib_dev_porterr(dd, ppd->port,
			"SDMA %s 0x%016llx %s\n",
			qib_sdma_state_names[ppd->sdma_state.current_state],
			errs, ppd->cpspec->sdmamsgbuf);
			dump_sdma_7322_state(ppd);
			}

	switch (ppd->sdma_state.current_state) {		switch (ppd->sdma_state.current_state) {
	case qib_sdma_state_s00_hw_down:		case qib_sdma_state_s00_hw_down:
	break;		break;
	@@ -2156,6 +2167,29 @@ static void qib_7322_handle_hwerrors(struct qib_devdata dd, char msg,

	qib_dev_err(dd, "%s hardware error\n", msg);		qib_dev_err(dd, "%s hardware error\n", msg);

			if (hwerrs &
			(SYM_MASK(HwErrMask, SDmaMemReadErrMask_0) \|
			SYM_MASK(HwErrMask, SDmaMemReadErrMask_1))) {
			int pidx = 0;
			int err;
			unsigned long flags;
			struct qib_pportdata *ppd = dd->pport;
			for (; pidx < dd->num_pports; ++pidx, ppd++) {
			err = 0;
			if (pidx == 0 && (hwerrs &
			SYM_MASK(HwErrMask, SDmaMemReadErrMask_0)))
			err++;
			if (pidx == 1 && (hwerrs &
			SYM_MASK(HwErrMask, SDmaMemReadErrMask_1)))
			err++;
			if (err) {
			spin_lock_irqsave(&ppd->sdma_lock, flags);
			dump_sdma_7322_state(ppd);
			spin_unlock_irqrestore(&ppd->sdma_lock, flags);
			}
			}
			}

	if (isfatal && !dd->diag_client) {		if (isfatal && !dd->diag_client) {
	qib_dev_err(dd,		qib_dev_err(dd,
	"Fatal Hardware Error, no longer usable, SN %.16s\n",		"Fatal Hardware Error, no longer usable, SN %.16s\n",
	@@ -6753,6 +6787,86 @@ static void qib_sdma_set_7322_desc_cnt(struct qib_pportdata *ppd, unsigned cnt)
	qib_write_kreg_port(ppd, krp_senddmadesccnt, cnt);		qib_write_kreg_port(ppd, krp_senddmadesccnt, cnt);
	}		}

			/*
			* sdma_lock should be acquired before calling this routine
			*/
			static void dump_sdma_7322_state(struct qib_pportdata *ppd)
			{
			u64 reg, reg1, reg2;

			reg = qib_read_kreg_port(ppd, krp_senddmastatus);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmastatus: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_sendctrl);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA sendctrl: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmabase);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmabase: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmabufmask0);
			reg1 = qib_read_kreg_port(ppd, krp_senddmabufmask1);
			reg2 = qib_read_kreg_port(ppd, krp_senddmabufmask2);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmabufmask 0:%llx 1:%llx 2:%llx\n",
			reg, reg1, reg2);

			/* get bufuse bits, clear them, and print them again if non-zero */
			reg = qib_read_kreg_port(ppd, krp_senddmabuf_use0);
			qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg);
			reg1 = qib_read_kreg_port(ppd, krp_senddmabuf_use1);
			qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg1);
			reg2 = qib_read_kreg_port(ppd, krp_senddmabuf_use2);
			qib_write_kreg_port(ppd, krp_senddmabuf_use0, reg2);
			/* 0 and 1 should always be zero, so print as short form */
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA current senddmabuf_use 0:%llx 1:%llx 2:%llx\n",
			reg, reg1, reg2);
			reg = qib_read_kreg_port(ppd, krp_senddmabuf_use0);
			reg1 = qib_read_kreg_port(ppd, krp_senddmabuf_use1);
			reg2 = qib_read_kreg_port(ppd, krp_senddmabuf_use2);
			/* 0 and 1 should always be zero, so print as short form */
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA cleared senddmabuf_use 0:%llx 1:%llx 2:%llx\n",
			reg, reg1, reg2);

			reg = qib_read_kreg_port(ppd, krp_senddmatail);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmatail: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmahead);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmahead: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmaheadaddr);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmaheadaddr: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmalengen);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmalengen: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmadesccnt);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmadesccnt: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmaidlecnt);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmaidlecnt: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmaprioritythld);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmapriorityhld: 0x%016llx\n", reg);

			reg = qib_read_kreg_port(ppd, krp_senddmareloadcnt);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA senddmareloadcnt: 0x%016llx\n", reg);

			dump_sdma_state(ppd);
			}

	static struct sdma_set_state_action sdma_7322_action_table[] = {		static struct sdma_set_state_action sdma_7322_action_table[] = {
	[qib_sdma_state_s00_hw_down] = {		[qib_sdma_state_s00_hw_down] = {
	.go_s99_running_tofalse = 1,		.go_s99_running_tofalse = 1,

drivers/infiniband/hw/qib/qib_sdma.c

+56 −0

Original line number	Original line	Diff line number	Diff line
	@@ -708,6 +708,62 @@ int qib_sdma_verbs_send(struct qib_pportdata *ppd,
	return ret;		return ret;
	}		}

			/*
			* sdma_lock should be acquired before calling this routine
			*/
			void dump_sdma_state(struct qib_pportdata *ppd)
			{
			struct qib_sdma_desc *descq;
			struct qib_sdma_txreq txp, txpnext;
			__le64 *descqp;
			u64 desc[2];
			dma_addr_t addr;
			u16 gen, dwlen, dwoffset;
			u16 head, tail, cnt;

			head = ppd->sdma_descq_head;
			tail = ppd->sdma_descq_tail;
			cnt = qib_sdma_descq_freecnt(ppd);
			descq = ppd->sdma_descq;

			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA ppd->sdma_descq_head: %u\n", head);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA ppd->sdma_descq_tail: %u\n", tail);
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA sdma_descq_freecnt: %u\n", cnt);

			/* print info for each entry in the descriptor queue */
			while (head != tail) {
			char flags[6] = { 'x', 'x', 'x', 'x', 'x', 0 };

			descqp = &descq[head].qw[0];
			desc[0] = le64_to_cpu(descqp[0]);
			desc[1] = le64_to_cpu(descqp[1]);
			flags[0] = (desc[0] & 1<<15) ? 'I' : '-';
			flags[1] = (desc[0] & 1<<14) ? 'L' : 'S';
			flags[2] = (desc[0] & 1<<13) ? 'H' : '-';
			flags[3] = (desc[0] & 1<<12) ? 'F' : '-';
			flags[4] = (desc[0] & 1<<11) ? 'L' : '-';
			addr = (desc[1] << 32) \| ((desc[0] >> 32) & 0xfffffffcULL);
			gen = (desc[0] >> 30) & 3ULL;
			dwlen = (desc[0] >> 14) & (0x7ffULL << 2);
			dwoffset = (desc[0] & 0x7ffULL) << 2;
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA sdmadesc[%u]: flags:%s addr:0x%016llx gen:%u len:%u bytes offset:%u bytes\n",
			head, flags, addr, gen, dwlen, dwoffset);
			if (++head == ppd->sdma_descq_cnt)
			head = 0;
			}

			/* print dma descriptor indices from the TX requests */
			list_for_each_entry_safe(txp, txpnext, &ppd->sdma_activelist,
			list)
			qib_dev_porterr(ppd->dd, ppd->port,
			"SDMA txp->start_idx: %u txp->next_descq_idx: %u\n",
			txp->start_idx, txp->next_descq_idx);
			}

	void qib_sdma_process_event(struct qib_pportdata *ppd,		void qib_sdma_process_event(struct qib_pportdata *ppd,
	enum qib_sdma_events event)		enum qib_sdma_events event)
	{		{