Release 4.7 drivers/scsi/mvsas/mv_sas.c

Directory: drivers/scsi/mvsas
/*
 * Marvell 88SE64xx/88SE94xx main function
 *
 * Copyright 2007 Red Hat, Inc.
 * Copyright 2008 Marvell. <kewei@marvell.com>
 * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com>
 *
 * This file is licensed under GPLv2.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; version 2 of the
 * License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
*/

#include "mv_sas.h"



static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag)
{
	if (task->lldd_task) {
		struct mvs_slot_info *slot;
		slot = task->lldd_task;
		*tag = slot->slot_tag;
		return 1;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
jeff garzik jeff garzik 38 73.08% 2 50.00%
ke wei ke wei 13 25.00% 1 25.00%
andy yan andy yan 1 1.92% 1 25.00%
Total 52 100.00% 4 100.00%



void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
{
	void *bitmap = mvi->tags;
	clear_bit(tag, bitmap);
}

Contributors
Person Tokens Prop Commits CommitProp
jeff garzik jeff garzik 21 75.00% 1 33.33%
ke wei ke wei 7 25.00% 2 66.67%
Total 28 100.00% 3 100.00%



void mvs_tag_free(struct mvs_info *mvi, u32 tag)
{
	mvs_tag_clear(mvi, tag);
}

Contributors
Person Tokens Prop Commits CommitProp
jeff garzik jeff garzik 15 75.00% 1 33.33%
ke wei ke wei 5 25.00% 2 66.67%
Total 20 100.00% 3 100.00%



void mvs_tag_set(struct mvs_info *mvi, unsigned int tag)
{
	void *bitmap = mvi->tags;
	set_bit(tag, bitmap);
}

Contributors
Person Tokens Prop Commits CommitProp
jeff garzik jeff garzik 24 82.76% 1 33.33%
ke wei ke wei 5 17.24% 2 66.67%
Total 29 100.00% 3 100.00%



inline int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
{
	unsigned int index, tag;
	void *bitmap = mvi->tags;

	index = find_first_zero_bit(bitmap, mvi->tags_num);
	tag = index;
	if (tag >= mvi->tags_num)
		return -SAS_QUEUE_FULL;
	mvs_tag_set(mvi, tag);
	*tag_out = tag;
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 32 45.07% 1 20.00%
jeff garzik jeff garzik 28 39.44% 1 20.00%
ke wei ke wei 9 12.68% 2 40.00%
andy yan andy yan 2 2.82% 1 20.00%
Total 71 100.00% 5 100.00%



void mvs_tag_init(struct mvs_info *mvi)
{
	int i;
	for (i = 0; i < mvi->tags_num; ++i)
		mvs_tag_clear(mvi, i);
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 29 82.86% 1 33.33%
andy yan andy yan 4 11.43% 1 33.33%
ke wei ke wei 2 5.71% 1 33.33%
Total 35 100.00% 3 100.00%



struct mvs_info *mvs_find_dev_mvi(struct domain_device *dev)
{
	unsigned long i = 0, j = 0, hi = 0;
	struct sas_ha_struct *sha = dev->port->ha;
	struct mvs_info *mvi = NULL;
	struct asd_sas_phy *phy;

	while (sha->sas_port[i]) {
		if (sha->sas_port[i] == dev->port) {
			phy =  container_of(sha->sas_port[i]->phy_list.next,
				struct asd_sas_phy, port_phy_el);
			j = 0;
			while (sha->sas_phy[j]) {
				if (sha->sas_phy[j] == phy)
					break;
				j++;
			}
			break;
		}
		i++;
	}
	hi = j/((struct mvs_prv_info *)sha->lldd_ha)->n_phy;
	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi];

	return mvi;

}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 130 77.38% 1 33.33%
ke wei ke wei 21 12.50% 1 33.33%
jeff garzik jeff garzik 17 10.12% 1 33.33%
Total 168 100.00% 3 100.00%



int mvs_find_dev_phyno(struct domain_device *dev, int *phyno)
{
	unsigned long i = 0, j = 0, n = 0, num = 0;
	struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
	struct mvs_info *mvi = mvi_dev->mvi_info;
	struct sas_ha_struct *sha = dev->port->ha;

	while (sha->sas_port[i]) {
		if (sha->sas_port[i] == dev->port) {
			struct asd_sas_phy *phy;
			list_for_each_entry(phy,
				&sha->sas_port[i]->phy_list, port_phy_el) {
				j = 0;
				while (sha->sas_phy[j]) {
					if (sha->sas_phy[j] == phy)
						break;
					j++;
				}
				phyno[n] = (j >= mvi->chip->n_phy) ?
					(j - mvi->chip->n_phy) : j;
				num++;
				n++;
			}
			break;
		}
		i++;
	}
	return num;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 128 72.32% 2 50.00%
jeff garzik jeff garzik 37 20.90% 1 25.00%
ke wei ke wei 12 6.78% 1 25.00%
Total 177 100.00% 4 100.00%



struct mvs_device *mvs_find_dev_by_reg_set(struct mvs_info *mvi,
						u8 reg_set)
{
	u32 dev_no;
	for (dev_no = 0; dev_no < MVS_MAX_DEVICES; dev_no++) {
		if (mvi->devices[dev_no].taskfileset == MVS_ID_NOT_MAPPED)
			continue;

		if (mvi->devices[dev_no].taskfileset == reg_set)
			return &mvi->devices[dev_no];
	}
	return NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 72 100.00% 1 100.00%
Total 72 100.00% 1 100.00%



static inline void mvs_free_reg_set(struct mvs_info *mvi,
				struct mvs_device *dev)
{
	if (!dev) {
		mv_printk("device has been free.\n");
		return;
	}
	if (dev->taskfileset == MVS_ID_NOT_MAPPED)
		return;
	MVS_CHIP_DISP->free_reg_set(mvi, &dev->taskfileset);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 35 68.63% 1 33.33%
ke wei ke wei 9 17.65% 1 33.33%
jeff garzik jeff garzik 7 13.73% 1 33.33%
Total 51 100.00% 3 100.00%



static inline u8 mvs_assign_reg_set(struct mvs_info *mvi,
				struct mvs_device *dev)
{
	if (dev->taskfileset != MVS_ID_NOT_MAPPED)
		return 0;
	return MVS_CHIP_DISP->assign_reg_set(mvi, &dev->taskfileset);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 28 68.29% 1 33.33%
ke wei ke wei 10 24.39% 1 33.33%
jeff garzik jeff garzik 3 7.32% 1 33.33%
Total 41 100.00% 3 100.00%



void mvs_phys_reset(struct mvs_info *mvi, u32 phy_mask, int hard)
{
	u32 no;
	for_each_phy(phy_mask, phy_mask, no) {
		if (!(phy_mask & 1))
			continue;
		MVS_CHIP_DISP->phy_reset(mvi, no, hard);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 37 74.00% 1 25.00%
ke wei ke wei 10 20.00% 2 50.00%
jeff garzik jeff garzik 3 6.00% 1 25.00%
Total 50 100.00% 4 100.00%



int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
			void *funcdata)
{
	int rc = 0, phy_id = sas_phy->id;
	u32 tmp, i = 0, hi;
	struct sas_ha_struct *sha = sas_phy->ha;
	struct mvs_info *mvi = NULL;

	while (sha->sas_phy[i]) {
		if (sha->sas_phy[i] == sas_phy)
			break;
		i++;
	}
	hi = i/((struct mvs_prv_info *)sha->lldd_ha)->n_phy;
	mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[hi];

	switch (func) {
	case PHY_FUNC_SET_LINK_RATE:
		MVS_CHIP_DISP->phy_set_link_rate(mvi, phy_id, funcdata);
		break;

	case PHY_FUNC_HARD_RESET:
		tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_id);
		if (tmp & PHY_RST_HARD)
			break;
		MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_HARD_RESET);
		break;

	case PHY_FUNC_LINK_RESET:
		MVS_CHIP_DISP->phy_enable(mvi, phy_id);
		MVS_CHIP_DISP->phy_reset(mvi, phy_id, MVS_SOFT_RESET);
		break;

	case PHY_FUNC_DISABLE:
		MVS_CHIP_DISP->phy_disable(mvi, phy_id);
		break;
	case PHY_FUNC_RELEASE_SPINUP_HOLD:
	default:
		rc = -ENOSYS;
	}
	msleep(200);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 154 69.06% 1 16.67%
ke wei ke wei 42 18.83% 2 33.33%
jeff garzik jeff garzik 24 10.76% 1 16.67%
xiangliang yu xiangliang yu 2 0.90% 1 16.67%
dan williams dan williams 1 0.45% 1 16.67%
Total 223 100.00% 6 100.00%



void mvs_set_sas_addr(struct mvs_info *mvi, int port_id, u32 off_lo,
		      u32 off_hi, u64 sas_addr)
{
	u32 lo = (u32)sas_addr;
	u32 hi = (u32)(sas_addr>>32);

	MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_lo);
	MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, lo);
	MVS_CHIP_DISP->write_port_cfg_addr(mvi, port_id, off_hi);
	MVS_CHIP_DISP->write_port_cfg_data(mvi, port_id, hi);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 73 84.88% 1 33.33%
ke wei ke wei 9 10.47% 1 33.33%
jeff garzik jeff garzik 4 4.65% 1 33.33%
Total 86 100.00% 3 100.00%



static void mvs_bytes_dmaed(struct mvs_info *mvi, int i)
{
	struct mvs_phy *phy = &mvi->phy[i];
	struct asd_sas_phy *sas_phy = &phy->sas_phy;
	struct sas_ha_struct *sas_ha;
	if (!phy->phy_attached)
		return;

	if (!(phy->att_dev_info & PORT_DEV_TRGT_MASK)
		&& phy->phy_type & PORT_TYPE_SAS) {
		return;
	}

	sas_ha = mvi->sas;
	sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE);

	if (sas_phy->phy) {
		struct sas_phy *sphy = sas_phy->phy;

		sphy->negotiated_linkrate = sas_phy->linkrate;
		sphy->minimum_linkrate = phy->minimum_linkrate;
		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
		sphy->maximum_linkrate = phy->maximum_linkrate;
		sphy->maximum_linkrate_hw = MVS_CHIP_DISP->phy_max_link_rate();
	}

	if (phy->phy_type & PORT_TYPE_SAS) {
		struct sas_identify_frame *id;

		id = (struct sas_identify_frame *)phy->frame_rcvd;
		id->dev_type = phy->identify.device_type;
		id->initiator_bits = SAS_PROTOCOL_ALL;
		id->target_bits = phy->identify.target_port_protocols;

		/* direct attached SAS device */
		if (phy->att_dev_info & PORT_SSP_TRGT_MASK) {
			MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
			MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x00);
		}
	} else if (phy->phy_type & PORT_TYPE_SATA) {
		/*Nothing*/
	}
	mv_dprintk("phy %d byte dmaded.\n", i + mvi->id * mvi->chip->n_phy);

	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;

	mvi->sas->notify_port_event(sas_phy,
				   PORTE_BYTES_DMAED);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 190 69.34% 1 20.00%
xiangliang yu xiangliang yu 33 12.04% 1 20.00%
ke wei ke wei 26 9.49% 1 20.00%
jeff garzik jeff garzik 25 9.12% 2 40.00%
Total 274 100.00% 5 100.00%



void mvs_scan_start(struct Scsi_Host *shost)
{
	int i, j;
	unsigned short core_nr;
	struct mvs_info *mvi;
	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
	struct mvs_prv_info *mvs_prv = sha->lldd_ha;

	core_nr = ((struct mvs_prv_info *)sha->lldd_ha)->n_host;

	for (j = 0; j < core_nr; j++) {
		mvi = ((struct mvs_prv_info *)sha->lldd_ha)->mvi[j];
		for (i = 0; i < mvi->chip->n_phy; ++i)
			mvs_bytes_dmaed(mvi, i);
	}
	mvs_prv->scan_finished = 1;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 88 72.73% 1 20.00%
xiangliang yu xiangliang yu 15 12.40% 1 20.00%
jeff garzik jeff garzik 15 12.40% 2 40.00%
ke wei ke wei 3 2.48% 1 20.00%
Total 121 100.00% 5 100.00%



int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
	struct mvs_prv_info *mvs_prv = sha->lldd_ha;

	if (mvs_prv->scan_finished == 0)
		return 0;

	sas_drain_work(sha);
	return 1;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 24 46.15% 1 20.00%
andy yan andy yan 22 42.31% 1 20.00%
jeff garzik jeff garzik 3 5.77% 1 20.00%
dan williams dan williams 2 3.85% 1 20.00%
ke wei ke wei 1 1.92% 1 20.00%
Total 52 100.00% 5 100.00%



static int mvs_task_prep_smp(struct mvs_info *mvi,
			     struct mvs_task_exec_info *tei)
{
	int elem, rc, i;
	struct sas_ha_struct *sha = mvi->sas;
	struct sas_task *task = tei->task;
	struct mvs_cmd_hdr *hdr = tei->hdr;
	struct domain_device *dev = task->dev;
	struct asd_sas_port *sas_port = dev->port;
	struct sas_phy *sphy = dev->phy;
	struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number];
	struct scatterlist *sg_req, *sg_resp;
	u32 req_len, resp_len, tag = tei->tag;
	void *buf_tmp;
	u8 *buf_oaf;
	dma_addr_t buf_tmp_dma;
	void *buf_prd;
	struct mvs_slot_info *slot = &mvi->slot_info[tag];
	u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);

	/*
         * DMA-map SMP request, response buffers
         */
	sg_req = &task->smp_task.smp_req;
	elem = dma_map_sg(mvi->dev, sg_req, 1, PCI_DMA_TODEVICE);
	if (!elem)
		return -ENOMEM;
	req_len = sg_dma_len(sg_req);

	sg_resp = &task->smp_task.smp_resp;
	elem = dma_map_sg(mvi->dev, sg_resp, 1, PCI_DMA_FROMDEVICE);
	if (!elem) {
		rc = -ENOMEM;
		goto err_out;
	}
	resp_len = SB_RFB_MAX;

	/* must be in dwords */
	if ((req_len & 0x3) || (resp_len & 0x3)) {
		rc = -EINVAL;
		goto err_out_2;
	}

	/*
         * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
         */

	/* region 1: command table area (MVS_SSP_CMD_SZ bytes) ***** */
	buf_tmp = slot->buf;
	buf_tmp_dma = slot->buf_dma;

	hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));

	/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
	buf_oaf = buf_tmp;
	hdr->open_frame = cpu_to_le64(buf_tmp_dma);

	buf_tmp += MVS_OAF_SZ;
	buf_tmp_dma += MVS_OAF_SZ;

	/* region 3: PRD table *********************************** */
	buf_prd = buf_tmp;
	if (tei->n_elem)
		hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
	else
		hdr->prd_tbl = 0;

	i = MVS_CHIP_DISP->prd_size() * tei->n_elem;
	buf_tmp += i;
	buf_tmp_dma += i;

	/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
	slot->response = buf_tmp;
	hdr->status_buf = cpu_to_le64(buf_tmp_dma);
	if (mvi->flags & MVF_FLAG_SOC)
		hdr->reserved[0] = 0;

	/*
         * Fill in TX ring and command slot header
         */
	slot->tx = mvi->tx_prod;
	mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) |
					TXQ_MODE_I | tag |
					(MVS_PHY_ID << TXQ_PHY_SHIFT));

	hdr->flags |= flags;
	hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4));
	hdr->tags = cpu_to_le32(tag);
	hdr->data_len = 0;

	/* generate open address frame hdr (first 12 bytes) */
	/* initiator, SMP, ftype 1h */
	buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01;
	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
	*(u16 *)(buf_oaf + 2) = 0xFFFF;		/* SAS SPEC */
	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);

	/* fill in PRD (scatter/gather) table, if any */
	MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);

	return 0;

err_out_2:
	dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_resp, 1,
		     PCI_DMA_FROMDEVICE);
err_out:
	dma_unmap_sg(mvi->dev, &tei->task->smp_task.smp_req, 1,
		     PCI_DMA_TODEVICE);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 278 46.18% 1 16.67%
ke wei ke wei 200 33.22% 1 16.67%
jeff garzik jeff garzik 84 13.95% 2 33.33%
xiangliang yu xiangliang yu 40 6.64% 2 33.33%
Total 602 100.00% 6 100.00%



static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag)
{
	struct ata_queued_cmd *qc = task->uldd_task;

	if (qc) {
		if (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
		    qc->tf.command == ATA_CMD_FPDMA_READ ||
		    qc->tf.command == ATA_CMD_FPDMA_RECV ||
		    qc->tf.command == ATA_CMD_FPDMA_SEND ||
		    qc->tf.command == ATA_CMD_NCQ_NON_DATA) {
			*tag = qc->tag;
			return 1;
		}
	}

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 57 65.52% 1 25.00%
hannes reinecke hannes reinecke 24 27.59% 2 50.00%
jeff garzik jeff garzik 6 6.90% 1 25.00%
Total 87 100.00% 4 100.00%



static int mvs_task_prep_ata(struct mvs_info *mvi,
			     struct mvs_task_exec_info *tei)
{
	struct sas_task *task = tei->task;
	struct domain_device *dev = task->dev;
	struct mvs_device *mvi_dev = dev->lldd_dev;
	struct mvs_cmd_hdr *hdr = tei->hdr;
	struct asd_sas_port *sas_port = dev->port;
	struct mvs_slot_info *slot;
	void *buf_prd;
	u32 tag = tei->tag, hdr_tag;
	u32 flags, del_q;
	void *buf_tmp;
	u8 *buf_cmd, *buf_oaf;
	dma_addr_t buf_tmp_dma;
	u32 i, req_len, resp_len;
	const u32 max_resp_len = SB_RFB_MAX;

	if (mvs_assign_reg_set(mvi, mvi_dev) == MVS_ID_NOT_MAPPED) {
		mv_dprintk("Have not enough regiset for dev %d.\n",
			mvi_dev->device_id);
		return -EBUSY;
	}
	slot = &mvi->slot_info[tag];
	slot->tx = mvi->tx_prod;
	del_q = TXQ_MODE_I | tag |
		(TXQ_CMD_STP << TXQ_CMD_SHIFT) |
		((sas_port->phy_mask & TXQ_PHY_MASK) << TXQ_PHY_SHIFT) |
		(mvi_dev->taskfileset << TXQ_SRS_SHIFT);
	mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q);

	if (task->data_dir == DMA_FROM_DEVICE)
		flags = (MVS_CHIP_DISP->prd_count() << MCH_PRD_LEN_SHIFT);
	else
		flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);

	if (task->ata_task.use_ncq)
		flags |= MCH_FPDMA;
	if (dev->sata_dev.class == ATA_DEV_ATAPI) {
		if (task->ata_task.fis.command != ATA_CMD_ID_ATAPI)
			flags |= MCH_ATAPI;
	}

	hdr->flags = cpu_to_le32(flags);

	if (task->ata_task.use_ncq && mvs_get_ncq_tag(task, &hdr_tag))
		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
	else
		hdr_tag = tag;

	hdr->tags = cpu_to_le32(hdr_tag);

	hdr->data_len = cpu_to_le32(task->total_xfer_len);

	/*
         * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
         */

	/* region 1: command table area (MVS_ATA_CMD_SZ bytes) ************** */
	buf_cmd = buf_tmp = slot->buf;
	buf_tmp_dma = slot->buf_dma;

	hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);

	buf_tmp += MVS_ATA_CMD_SZ;
	buf_tmp_dma += MVS_ATA_CMD_SZ;

	/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
	/* used for STP.  unused for SATA? */
	buf_oaf = buf_tmp;
	hdr->open_frame = cpu_to_le64(buf_tmp_dma);

	buf_tmp += MVS_OAF_SZ;
	buf_tmp_dma += MVS_OAF_SZ;

	/* region 3: PRD table ********************************************* */
	buf_prd = buf_tmp;

	if (tei->n_elem)
		hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
	else
		hdr->prd_tbl = 0;
	i = MVS_CHIP_DISP->prd_size() * MVS_CHIP_DISP->prd_count();

	buf_tmp += i;
	buf_tmp_dma += i;

	/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
	slot->response = buf_tmp;
	hdr->status_buf = cpu_to_le64(buf_tmp_dma);
	if (mvi->flags & MVF_FLAG_SOC)
		hdr->reserved[0] = 0;

	req_len = sizeof(struct host_to_dev_fis);
	resp_len = MVS_SLOT_BUF_SZ - MVS_ATA_CMD_SZ -
	    sizeof(struct mvs_err_info) - i;

	/* request, response lengths */
	resp_len = min(resp_len, max_resp_len);
	hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));

	if (likely(!task->ata_task.device_control_reg_update))
		task->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
	/* fill in command FIS and ATAPI CDB */
	memcpy(buf_cmd, &task->ata_task.fis, sizeof(struct host_to_dev_fis));
	if (dev->sata_dev.class == ATA_DEV_ATAPI)
		memcpy(buf_cmd + STP_ATAPI_CMD,
			task->ata_task.atapi_packet, 16);

	/* generate open address frame hdr (first 12 bytes) */
	/* initiator, STP, ftype 1h */
	buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1;
	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
	*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);

	/* fill in PRD (scatter/gather) table, if any */
	MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);

	if (task->data_dir == DMA_FROM_DEVICE)
		MVS_CHIP_DISP->dma_fix(mvi, sas_port->phy_mask,
				TRASH_BUCKET_SIZE, tei->n_elem, buf_prd);

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 470 65.83% 1 11.11%
jeff garzik jeff garzik 161 22.55% 2 22.22%
ke wei ke wei 62 8.68% 2 22.22%
xiangliang yu xiangliang yu 10 1.40% 2 22.22%
james bottomley james bottomley 7 0.98% 1 11.11%
hannes reinecke hannes reinecke 4 0.56% 1 11.11%
Total 714 100.00% 9 100.00%



static int mvs_task_prep_ssp(struct mvs_info *mvi,
			     struct mvs_task_exec_info *tei, int is_tmf,
			     struct mvs_tmf_task *tmf)
{
	struct sas_task *task = tei->task;
	struct mvs_cmd_hdr *hdr = tei->hdr;
	struct mvs_port *port = tei->port;
	struct domain_device *dev = task->dev;
	struct mvs_device *mvi_dev = dev->lldd_dev;
	struct asd_sas_port *sas_port = dev->port;
	struct mvs_slot_info *slot;
	void *buf_prd;
	struct ssp_frame_hdr *ssp_hdr;
	void *buf_tmp;
	u8 *buf_cmd, *buf_oaf, fburst = 0;
	dma_addr_t buf_tmp_dma;
	u32 flags;
	u32 resp_len, req_len, i, tag = tei->tag;
	const u32 max_resp_len = SB_RFB_MAX;
	u32 phy_mask;

	slot = &mvi->slot_info[tag];

	phy_mask = ((port->wide_port_phymap) ? port->wide_port_phymap :
		sas_port->phy_mask) & TXQ_PHY_MASK;

	slot->tx = mvi->tx_prod;
	mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | tag |
				(TXQ_CMD_SSP << TXQ_CMD_SHIFT) |
				(phy_mask << TXQ_PHY_SHIFT));

	flags = MCH_RETRY;
	if (task->ssp_task.enable_first_burst) {
		flags |= MCH_FBURST;
		fburst = (1 << 7);
	}
	if (is_tmf)
		flags |= (MCH_SSP_FR_TASK << MCH_SSP_FR_TYPE_SHIFT);
	else
		flags |= (MCH_SSP_FR_CMD << MCH_SSP_FR_TYPE_SHIFT);

	hdr->flags = cpu_to_le32(flags | (tei->n_elem << MCH_PRD_LEN_SHIFT));
	hdr->tags = cpu_to_le32(tag);
	hdr->data_len = cpu_to_le32(task->total_xfer_len);

	/*
         * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
         */

	/* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
	buf_cmd = buf_tmp = slot->buf;
	buf_tmp_dma = slot->buf_dma;

	hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);

	buf_tmp += MVS_SSP_CMD_SZ;
	buf_tmp_dma += MVS_SSP_CMD_SZ;

	/* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
	buf_oaf = buf_tmp;
	hdr->open_frame = cpu_to_le64(buf_tmp_dma);

	buf_tmp += MVS_OAF_SZ;
	buf_tmp_dma += MVS_OAF_SZ;

	/* region 3: PRD table ********************************************* */
	buf_prd = buf_tmp;
	if (tei->n_elem)
		hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
	else
		hdr->prd_tbl = 0;

	i = MVS_CHIP_DISP->prd_size() * tei->n_elem;
	buf_tmp += i;
	buf_tmp_dma += i;

	/* region 4: status buffer (larger the PRD, smaller this buf) ****** */
	slot->response = buf_tmp;
	hdr->status_buf = cpu_to_le64(buf_tmp_dma);
	if (mvi->flags & MVF_FLAG_SOC)
		hdr->reserved[0] = 0;

	resp_len = MVS_SLOT_BUF_SZ - MVS_SSP_CMD_SZ - MVS_OAF_SZ -
	    sizeof(struct mvs_err_info) - i;
	resp_len = min(resp_len, max_resp_len);

	req_len = sizeof(struct ssp_frame_hdr) + 28;

	/* request, response lengths */
	hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | (req_len / 4));

	/* generate open address frame hdr (first 12 bytes) */
	/* initiator, SSP, ftype 1h */
	buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1;
	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
	*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);

	/* fill in SSP frame header (Command Table.SSP frame header) */
	ssp_hdr = (struct ssp_frame_hdr *)buf_cmd;

	if (is_tmf)
		ssp_hdr->frame_type = SSP_TASK;
	else
		ssp_hdr->frame_type = SSP_COMMAND;

	memcpy(ssp_hdr->hashed_dest_addr, dev->hashed_sas_addr,
	       HASHED_SAS_ADDR_SIZE);
	memcpy(ssp_hdr->hashed_src_addr,
	       dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
	ssp_hdr->tag = cpu_to_be16(tag);

	/* fill in IU for TASK and Command Frame */
	buf_cmd += sizeof(*ssp_hdr);
	memcpy(buf_cmd, &task->ssp_task.LUN, 8);

	if (ssp_hdr->frame_type != SSP_TASK) {
		buf_cmd[9] = fburst | task->ssp_task.task_attr |
				(task->ssp_task.task_prio << 3);
		memcpy(buf_cmd + 12, task->ssp_task.cmd->cmnd,
		       task->ssp_task.cmd->cmd_len);
	} else{
		buf_cmd[10] = tmf->tmf;
		switch (tmf->tmf) {
		case TMF_ABORT_TASK:
		case TMF_QUERY_TASK:
			buf_cmd[12] =
				(tmf->tag_of_task_to_be_managed >> 8) & 0xff;
			buf_cmd[13] =
				tmf->tag_of_task_to_be_managed & 0xff;
			break;
		default:
			break;
		}
	}
	/* fill in PRD (scatter/gather) table, if any */
	MVS_CHIP_DISP->make_prd(task->scatter, tei->n_elem, buf_prd);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 739 96.60% 2 40.00%
xiangliang yu xiangliang yu 16 2.09% 2 40.00%
james bottomley james bottomley 10 1.31% 1 20.00%
Total 765 100.00% 5 100.00%


#define	DEV_IS_GONE(mvi_dev)	((!mvi_dev || (mvi_dev->dev_type == SAS_PHY_UNUSED)))


static int mvs_task_prep(struct sas_task *task, struct mvs_info *mvi, int is_tmf,
				struct mvs_tmf_task *tmf, int *pass)
{
	struct domain_device *dev = task->dev;
	struct mvs_device *mvi_dev = dev->lldd_dev;
	struct mvs_task_exec_info tei;
	struct mvs_slot_info *slot;
	u32 tag = 0xdeadbeef, n_elem = 0;
	int rc = 0;

	if (!dev->port) {
		struct task_status_struct *tsm = &task->task_status;

		tsm->resp = SAS_TASK_UNDELIVERED;
		tsm->stat = SAS_PHY_DOWN;
		/*
                 * libsas will use dev->port, should
                 * not call task_done for sata
                 */
		if (dev->dev_type != SAS_SATA_DEV)
			task->task_done(task);
		return rc;
	}

	if (DEV_IS_GONE(mvi_dev)) {
		if (mvi_dev)
			mv_dprintk("device %d not ready.\n",
				mvi_dev->device_id);
		else
			mv_dprintk("device %016llx not ready.\n",
				SAS_ADDR(dev->sas_addr));

		rc = SAS_PHY_DOWN;
		return rc;
	}
	tei.port = dev->port->lldd_port;
	if (tei.port && !tei.port->port_attached && !tmf) {
		if (sas_protocol_ata(task->task_proto)) {
			struct task_status_struct *ts = &task->task_status;
			mv_dprintk("SATA/STP port %d does not attach"
					"device.\n", dev->port->id);
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAS_PHY_DOWN;

			task->task_done(task);

		} else {
			struct task_status_struct *ts = &task->task_status;
			mv_dprintk("SAS port %d does not attach"
				"device.\n", dev->port->id);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_PHY_DOWN;
			task->task_done(task);
		}
		return rc;
	}

	if (!sas_protocol_ata(task->task_proto)) {
		if (task->num_scatter) {
			n_elem = dma_map_sg(mvi->dev,
					    task->scatter,
					    task->num_scatter,
					    task->data_dir);
			if (!n_elem) {
				rc = -ENOMEM;
				goto prep_out;
			}
		}
	} else {
		n_elem = task->num_scatter;
	}

	rc = mvs_tag_alloc(mvi, &tag);
	if (rc)
		goto err_out;

	slot = &mvi->slot_info[tag];

	task->lldd_task = NULL;
	slot->n_elem = n_elem;
	slot->slot_tag = tag;

	slot->buf = pci_pool_alloc(mvi->dma_pool, GFP_ATOMIC, &slot->buf_dma);
	if (!slot->buf)
		goto err_out_tag;
	memset(slot->buf, 0, MVS_SLOT_BUF_SZ);

	tei.task = task;
	tei.hdr = &mvi->slot[tag];
	tei.tag = tag;
	tei.n_elem = n_elem;
	switch (task->task_proto) {
	case SAS_PROTOCOL_SMP:
		rc = mvs_task_prep_smp(mvi, &tei);
		break;
	case SAS_PROTOCOL_SSP:
		rc = mvs_task_prep_ssp(mvi, &tei, is_tmf, tmf);
		break;
	case SAS_PROTOCOL_SATA:
	case SAS_PROTOCOL_STP:
	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
		rc = mvs_task_prep_ata(mvi, &tei);
		break;
	default:
		dev_printk(KERN_ERR, mvi->dev,
			"unknown sas_task proto: 0x%x\n",
			task->task_proto);
		rc = -EINVAL;
		break;
	}

	if (rc) {
		mv_dprintk("rc is %x\n", rc);
		goto err_out_slot_buf;
	}
	slot->task = task;
	slot->port = tei.port;
	task->lldd_task = slot;
	list_add_tail(&slot->entry, &tei.port->list);
	spin_lock(&task->task_state_lock);
	task->task_state_flags |= SAS_TASK_AT_INITIATOR;
	spin_unlock(&task->task_state_lock);

	mvi_dev->running_req++;
	++(*pass);
	mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);

	return rc;

err_out_slot_buf:
	pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma);
err_out_tag:
	mvs_tag_free(mvi, tag);
err_out:

	dev_printk(KERN_ERR, mvi->dev, "mvsas prep failed[%d]!\n", rc);
	if (!sas_protocol_ata(task->task_proto))
		if (n_elem)
			dma_unmap_sg(mvi->dev, task->scatter, n_elem,
				     task->data_dir);
prep_out:
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 390 53.21% 2 20.00%
xiangliang yu xiangliang yu 213 29.06% 1 10.00%
jeff garzik jeff garzik 56 7.64% 2 20.00%
ke wei ke wei 39 5.32% 3 30.00%
srinivas srinivas 34 4.64% 1 10.00%
james bottomley james bottomley 1 0.14% 1 10.00%
Total 733 100.00% 10 100.00%



static int mvs_task_exec(struct sas_task *task, gfp_t gfp_flags,
				struct completion *completion, int is_tmf,
				struct mvs_tmf_task *tmf)
{
	struct mvs_info *mvi = NULL;
	u32 rc = 0;
	u32 pass = 0;
	unsigned long flags = 0;

	mvi = ((struct mvs_device *)task->dev->lldd_dev)->mvi_info;

	spin_lock_irqsave(&mvi->lock, flags);
	rc = mvs_task_prep(task, mvi, is_tmf, tmf, &pass);
	if (rc)
		dev_printk(KERN_ERR, mvi->dev, "mvsas exec failed[%d]!\n", rc);

	if (likely(pass))
			MVS_CHIP_DISP->start_delivery(mvi, (mvi->tx_prod - 1) &
				(MVS_CHIP_SLOT_SZ - 1));
	spin_unlock_irqrestore(&mvi->lock, flags);

	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 108 71.52% 1 16.67%
andy yan andy yan 26 17.22% 1 16.67%
christoph hellwig christoph hellwig 9 5.96% 1 16.67%
jeff garzik jeff garzik 5 3.31% 2 33.33%
srinivas srinivas 3 1.99% 1 16.67%
Total 151 100.00% 6 100.00%



int mvs_queue_command(struct sas_task *task, gfp_t gfp_flags)
{
	return mvs_task_exec(task, gfp_flags, NULL, 0, NULL);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 18 66.67% 1 50.00%
xiangliang yu xiangliang yu 9 33.33% 1 50.00%
Total 27 100.00% 2 100.00%



static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc)
{
	u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
	mvs_tag_clear(mvi, slot_idx);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task,
			  struct mvs_slot_info *slot, u32 slot_idx)
{
	if (!slot)
		return;
	if (!slot->task)
		return;
	if (!sas_protocol_ata(task->task_proto))
		if (slot->n_elem)
			dma_unmap_sg(mvi->dev, task->scatter,
				     slot->n_elem, task->data_dir);

	switch (task->task_proto) {
	case SAS_PROTOCOL_SMP:
		dma_unmap_sg(mvi->dev, &task->smp_task.smp_resp, 1,
			     PCI_DMA_FROMDEVICE);
		dma_unmap_sg(mvi->dev, &task->smp_task.smp_req, 1,
			     PCI_DMA_TODEVICE);
		break;

	case SAS_PROTOCOL_SATA:
	case SAS_PROTOCOL_STP:
	case SAS_PROTOCOL_SSP:
	default:
		/* do nothing */
		break;
	}

	if (slot->buf) {
		pci_pool_free(mvi->dma_pool, slot->buf, slot->buf_dma);
		slot->buf = NULL;
	}
	list_del_init(&slot->entry);
	task->lldd_task = NULL;
	slot->task = NULL;
	slot->port = NULL;
	slot->slot_tag = 0xFFFFFFFF;
	mvs_slot_free(mvi, slot_idx);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 96 47.76% 1 16.67%
jeff garzik jeff garzik 58 28.86% 2 33.33%
xiangliang yu xiangliang yu 29 14.43% 1 16.67%
ke wei ke wei 12 5.97% 1 16.67%
davis mosans davis mosans 6 2.99% 1 16.67%
Total 201 100.00% 6 100.00%



static void mvs_update_wideport(struct mvs_info *mvi, int phy_no)
{
	struct mvs_phy *phy = &mvi->phy[phy_no];
	struct mvs_port *port = phy->port;
	int j, no;

	for_each_phy(port->wide_port_phymap, j, no) {
		if (j & 1) {
			MVS_CHIP_DISP->write_port_cfg_addr(mvi, no,
						PHYR_WIDE_PORT);
			MVS_CHIP_DISP->write_port_cfg_data(mvi, no,
						port->wide_port_phymap);
		} else {
			MVS_CHIP_DISP->write_port_cfg_addr(mvi, no,
						PHYR_WIDE_PORT);
			MVS_CHIP_DISP->write_port_cfg_data(mvi, no,
						0);
		}
	}
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 85 78.70% 1 20.00%
jeff garzik jeff garzik 16 14.81% 2 40.00%
ke wei ke wei 5 4.63% 1 20.00%
xiangliang yu xiangliang yu 2 1.85% 1 20.00%
Total 108 100.00% 5 100.00%



static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i)
{
	u32 tmp;
	struct mvs_phy *phy = &mvi->phy[i];
	struct mvs_port *port = phy->port;

	tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, i);
	if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) {
		if (!port)
			phy->phy_attached = 1;
		return tmp;
	}

	if (port) {
		if (phy->phy_type & PORT_TYPE_SAS) {
			port->wide_port_phymap &= ~(1U << i);
			if (!port->wide_port_phymap)
				port->port_attached = 0;
			mvs_update_wideport(mvi, i);
		} else if (phy->phy_type & PORT_TYPE_SATA)
			port->port_attached = 0;
		phy->port = NULL;
		phy->phy_attached = 0;
		phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 133 77.78% 1 25.00%
jeff garzik jeff garzik 24 14.04% 2 50.00%
ke wei ke wei 14 8.19% 1 25.00%
Total 171 100.00% 4 100.00%



static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf)
{
	u32 *s = (u32 *) buf;

	if (!s)
		return NULL;

	MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3);
	s[3] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));

	MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2);
	s[2] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));

	MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1);
	s[1] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));

	MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0);
	s[0] = cpu_to_le32(MVS_CHIP_DISP->read_port_cfg_data(mvi, i));

	if (((s[1] & 0x00FFFFFF) == 0x00EB1401) && (*(u8 *)&s[3] == 0x01))
		s[1] = 0x00EB1401 | (*((u8 *)&s[1] + 3) & 0x10);

	return s;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 145 69.71% 1 20.00%
jeff garzik jeff garzik 41 19.71% 2 40.00%
xiangliang yu xiangliang yu 12 5.77% 1 20.00%
ke wei ke wei 10 4.81% 1 20.00%
Total 208 100.00% 5 100.00%



static u32 mvs_is_sig_fis_received(u32 irq_status)
{
	return irq_status & PHYEV_SIG_FIS;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 13 92.86% 1 50.00%
jeff garzik jeff garzik 1 7.14% 1 50.00%
Total 14 100.00% 2 100.00%



static void mvs_sig_remove_timer(struct mvs_phy *phy)
{
	if (phy->timer.function)
		del_timer(&phy->timer);
	phy->timer.function = NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 35 100.00% 1 100.00%
Total 35 100.00% 1 100.00%



void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st)
{
	struct mvs_phy *phy = &mvi->phy[i];
	struct sas_identify_frame *id;

	id = (struct sas_identify_frame *)phy->frame_rcvd;

	if (get_st) {
		phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, i);
		phy->phy_status = mvs_is_phy_ready(mvi, i);
	}

	if (phy->phy_status) {
		int oob_done = 0;
		struct asd_sas_phy *sas_phy = &mvi->phy[i].sas_phy;

		oob_done = MVS_CHIP_DISP->oob_done(mvi, i);

		MVS_CHIP_DISP->fix_phy_info(mvi, i, id);
		if (phy->phy_type & PORT_TYPE_SATA) {
			phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
			if (mvs_is_sig_fis_received(phy->irq_status)) {
				mvs_sig_remove_timer(phy);
				phy->phy_attached = 1;
				phy->att_dev_sas_addr =
					i + mvi->id * mvi->chip->n_phy;
				if (oob_done)
					sas_phy->oob_mode = SATA_OOB_MODE;
				phy->frame_rcvd_size =
				    sizeof(struct dev_to_host_fis);
				mvs_get_d2h_reg(mvi, i, id);
			} else {
				u32 tmp;
				dev_printk(KERN_DEBUG, mvi->dev,
					"Phy%d : No sig fis\n", i);
				tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, i);
				MVS_CHIP_DISP->write_port_irq_mask(mvi, i,
						tmp | PHYEV_SIG_FIS);
				phy->phy_attached = 0;
				phy->phy_type &= ~PORT_TYPE_SATA;
				goto out_done;
			}
		}	else if (phy->phy_type & PORT_TYPE_SAS
			|| phy->att_dev_info & PORT_SSP_INIT_MASK) {
			phy->phy_attached = 1;
			phy->identify.device_type =
				phy->att_dev_info & PORT_DEV_TYPE_MASK;

			if (phy->identify.device_type == SAS_END_DEVICE)
				phy->identify.target_port_protocols =
							SAS_PROTOCOL_SSP;
			else if (phy->identify.device_type != SAS_PHY_UNUSED)
				phy->identify.target_port_protocols =
							SAS_PROTOCOL_SMP;
			if (oob_done)
				sas_phy->oob_mode = SAS_OOB_MODE;
			phy->frame_rcvd_size =
			    sizeof(struct sas_identify_frame);
		}
		memcpy(sas_phy->attached_sas_addr,
			&phy->att_dev_sas_addr, SAS_ADDR_SIZE);

		if (MVS_CHIP_DISP->phy_work_around)
			MVS_CHIP_DISP->phy_work_around(mvi, i);
	}
	mv_dprintk("phy %d attach dev info is %x\n",
		i + mvi->id * mvi->chip->n_phy, phy->att_dev_info);
	mv_dprintk("phy %d attach sas addr is %llx\n",
		i + mvi->id * mvi->chip->n_phy, phy->att_dev_sas_addr);
out_done:
	if (get_st)
		MVS_CHIP_DISP->write_port_irq_stat(mvi, i, phy->irq_status);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 293 64.97% 1 12.50%
jeff garzik jeff garzik 111 24.61% 2 25.00%
ke wei ke wei 38 8.43% 2 25.00%
xiangliang yu xiangliang yu 7 1.55% 2 25.00%
james bottomley james bottomley 2 0.44% 1 12.50%
Total 451 100.00% 8 100.00%



static void mvs_port_notify_formed(struct asd_sas_phy *sas_phy, int lock)
{
	struct sas_ha_struct *sas_ha = sas_phy->ha;
	struct mvs_info *mvi = NULL; int i = 0, hi;
	struct mvs_phy *phy = sas_phy->lldd_phy;
	struct asd_sas_port *sas_port = sas_phy->port;
	struct mvs_port *port;
	unsigned long flags = 0;
	if (!sas_port)
		return;

	while (sas_ha->sas_phy[i]) {
		if (sas_ha->sas_phy[i] == sas_phy)
			break;
		i++;
	}
	hi = i/((struct mvs_prv_info *)sas_ha->lldd_ha)->n_phy;
	mvi = ((struct mvs_prv_info *)sas_ha->lldd_ha)->mvi[hi];
	if (i >= mvi->chip->n_phy)
		port = &mvi->port[i - mvi->chip->n_phy];
	else
		port = &mvi->port[i];
	if (lock)
		spin_lock_irqsave(&mvi->lock, flags);
	port->port_attached = 1;
	phy->port = port;
	sas_port->lldd_port = port;
	if (phy->phy_type & PORT_TYPE_SAS) {
		port->wide_port_phymap = sas_port->phy_mask;
		mv_printk("set wide port phy map %x\n", sas_port->phy_mask);
		mvs_update_wideport(mvi, sas_phy->id);

		/* direct attached SAS device */
		if (phy->att_dev_info & PORT_SSP_TRGT_MASK) {
			MVS_CHIP_DISP->write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
			MVS_CHIP_DISP->write_port_cfg_data(mvi, i, 0x04);
		}
	}
	if (lock)
		spin_unlock_irqrestore(&mvi->lock, flags);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 183 64.21% 1 14.29%
jeff garzik jeff garzik 51 17.89% 2 28.57%
xiangliang yu xiangliang yu 42 14.74% 3 42.86%
ke wei ke wei 9 3.16% 1 14.29%
Total 285 100.00% 7 100.00%



static void mvs_port_notify_deformed(struct asd_sas_phy *sas_phy, int lock)
{
	struct domain_device *dev;
	struct mvs_phy *phy = sas_phy->lldd_phy;
	struct mvs_info *mvi = phy->mvi;
	struct asd_sas_port *port = sas_phy->port;
	int phy_no = 0;

	while (phy != &mvi->phy[phy_no]) {
		phy_no++;
		if (phy_no >= MVS_MAX_PHYS)
			return;
	}
	list_for_each_entry(dev, &port->dev_list, dev_list_node)
		mvs_do_release_task(phy->mvi, phy_no, dev);

}


Contributors
Person Tokens Prop Commits CommitProp
srinivas srinivas 70 74.47% 1 25.00%
andy yan andy yan 19 20.21% 1 25.00%
jeff garzik jeff garzik 4 4.26% 1 25.00%
xiangliang yu xiangliang yu 1 1.06% 1 25.00%
Total 94 100.00% 4 100.00%



void mvs_port_formed(struct asd_sas_phy *sas_phy)
{
	mvs_port_notify_formed(sas_phy, 1);
}

Contributors
Person Tokens Prop Commits CommitProp
srinivas srinivas 17 100.00% 1 100.00%
Total 17 100.00% 1 100.00%



void mvs_port_deformed(struct asd_sas_phy *sas_phy)
{
	mvs_port_notify_deformed(sas_phy, 1);
}

Contributors
Person Tokens Prop Commits CommitProp
srinivas srinivas 17 100.00% 1 100.00%
Total 17 100.00% 1 100.00%



struct mvs_device *mvs_alloc_dev(struct mvs_info *mvi)
{
	u32 dev;
	for (dev = 0; dev < MVS_MAX_DEVICES; dev++) {
		if (mvi->devices[dev].dev_type == SAS_PHY_UNUSED) {
			mvi->devices[dev].device_id = dev;
			return &mvi->devices[dev];
		}
	}

	if (dev == MVS_MAX_DEVICES)
		mv_printk("max support %d devices, ignore ..\n",
			MVS_MAX_DEVICES);

	return NULL;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 43 53.09% 1 16.67%
srinivas srinivas 22 27.16% 1 16.67%
ke wei ke wei 8 9.88% 1 16.67%
jeff garzik jeff garzik 7 8.64% 2 33.33%
james bottomley james bottomley 1 1.23% 1 16.67%
Total 81 100.00% 6 100.00%



void mvs_free_dev(struct mvs_device *mvi_dev)
{
	u32 id = mvi_dev->device_id;
	memset(mvi_dev, 0, sizeof(*mvi_dev));
	mvi_dev->device_id = id;
	mvi_dev->dev_type = SAS_PHY_UNUSED;
	mvi_dev->dev_status = MVS_DEV_NORMAL;
	mvi_dev->taskfileset = MVS_ID_NOT_MAPPED;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 34 62.96% 1 20.00%
jeff garzik jeff garzik 15 27.78% 2 40.00%
ke wei ke wei 4 7.41% 1 20.00%
james bottomley james bottomley 1 1.85% 1 20.00%
Total 54 100.00% 5 100.00%



int mvs_dev_found_notify(struct domain_device *dev, int lock)
{
	unsigned long flags = 0;
	int res = 0;
	struct mvs_info *mvi = NULL;
	struct domain_device *parent_dev = dev->parent;
	struct mvs_device *mvi_device;

	mvi = mvs_find_dev_mvi(dev);

	if (lock)
		spin_lock_irqsave(&mvi->lock, flags);

	mvi_device = mvs_alloc_dev(mvi);
	if (!mvi_device) {
		res = -1;
		goto found_out;
	}
	dev->lldd_dev = mvi_device;
	mvi_device->dev_status = MVS_DEV_NORMAL;
	mvi_device->dev_type = dev->dev_type;
	mvi_device->mvi_info = mvi;
	mvi_device->sas_device = dev;
	if (parent_dev && DEV_IS_EXPANDER(parent_dev->dev_type)) {
		int phy_id;
		u8 phy_num = parent_dev->ex_dev.num_phys;
		struct ex_phy *phy;
		for (phy_id = 0; phy_id < phy_num; phy_id++) {
			phy = &parent_dev->ex_dev.ex_phy[phy_id];
			if (SAS_ADDR(phy->attached_sas_addr) ==
				SAS_ADDR(dev->sas_addr)) {
				mvi_device->attached_phy = phy_id;
				break;
			}
		}

		if (phy_id == phy_num) {
			mv_printk("Error: no attached dev:%016llx"
				"at ex:%016llx.\n",
				SAS_ADDR(dev->sas_addr),
				SAS_ADDR(parent_dev->sas_addr));
			res = -1;
		}
	}

found_out:
	if (lock)
		spin_unlock_irqrestore(&mvi->lock, flags);
	return res;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 185 72.83% 2 28.57%
jeff garzik jeff garzik 48 18.90% 2 28.57%
ke wei ke wei 9 3.54% 1 14.29%
srinivas srinivas 6 2.36% 1 14.29%
xiangliang yu xiangliang yu 6 2.36% 1 14.29%
Total 254 100.00% 7 100.00%



int mvs_dev_found(struct domain_device *dev)
{
	return mvs_dev_found_notify(dev, 1);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 14 77.78% 1 33.33%
ke wei ke wei 2 11.11% 1 33.33%
jeff garzik jeff garzik 2 11.11% 1 33.33%
Total 18 100.00% 3 100.00%



void mvs_dev_gone_notify(struct domain_device *dev)
{
	unsigned long flags = 0;
	struct mvs_device *mvi_dev = dev->lldd_dev;
	struct mvs_info *mvi;

	if (!mvi_dev) {
		mv_dprintk("found dev has gone.\n");
		return;
	}

	mvi = mvi_dev->mvi_info;

	spin_lock_irqsave(&mvi->lock, flags);

	mv_dprintk("found dev[%d:%x] is gone.\n",
		mvi_dev->device_id, mvi_dev->dev_type);
	mvs_release_task(mvi, dev);
	mvs_free_reg_set(mvi, mvi_dev);
	mvs_free_dev(mvi_dev);

	dev->lldd_dev = NULL;
	mvi_dev->sas_device = NULL;

	spin_unlock_irqrestore(&mvi->lock, flags);
}


Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 42 37.17% 2 25.00%
jeff garzik jeff garzik 33 29.20% 2 25.00%
rickard strandqvist rickard strandqvist 17 15.04% 1 12.50%
ke wei ke wei 8 7.08% 1 12.50%
srinivas srinivas 7 6.19% 1 12.50%
xiangliang yu xiangliang yu 6 5.31% 1 12.50%
Total 113 100.00% 8 100.00%



void mvs_dev_gone(struct domain_device *dev)
{
	mvs_dev_gone_notify(dev);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 7 46.67% 1 25.00%
ke wei ke wei 5 33.33% 1 25.00%
jeff garzik jeff garzik 3 20.00% 2 50.00%
Total 15 100.00% 4 100.00%



static void mvs_task_done(struct sas_task *task)
{
	if (!del_timer(&task->slow_task->timer))
		return;
	complete(&task->slow_task->completion);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 20 57.14% 1 20.00%
jeff garzik jeff garzik 9 25.71% 2 40.00%
dan williams dan williams 4 11.43% 1 20.00%
ke wei ke wei 2 5.71% 1 20.00%
Total 35 100.00% 5 100.00%



static void mvs_tmf_timedout(unsigned long data)
{
	struct sas_task *task = (struct sas_task *)data;

	task->task_state_flags |= SAS_TASK_STATE_ABORTED;
	complete(&task->slow_task->completion);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 29 76.32% 1 25.00%
jeff garzik jeff garzik 7 18.42% 2 50.00%
dan williams dan williams 2 5.26% 1 25.00%
Total 38 100.00% 4 100.00%


#define MVS_TASK_TIMEOUT 20


static int mvs_exec_internal_tmf_task(struct domain_device *dev,
			void *parameter, u32 para_len, struct mvs_tmf_task *tmf)
{
	int res, retry;
	struct sas_task *task = NULL;

	for (retry = 0; retry < 3; retry++) {
		task = sas_alloc_slow_task(GFP_KERNEL);
		if (!task)
			return -ENOMEM;

		task->dev = dev;
		task->task_proto = dev->tproto;

		memcpy(&task->ssp_task, parameter, para_len);
		task->task_done = mvs_task_done;

		task->slow_task->timer.data = (unsigned long) task;
		task->slow_task->timer.function = mvs_tmf_timedout;
		task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ;
		add_timer(&task->slow_task->timer);

		res = mvs_task_exec(task, GFP_KERNEL, NULL, 1, tmf);

		if (res) {
			del_timer(&task->slow_task->timer);
			mv_printk("executing internal task failed:%d\n", res);
			goto ex_err;
		}

		wait_for_completion(&task->slow_task->completion);
		res = TMF_RESP_FUNC_FAILED;
		/* Even TMF timed out, return direct. */
		if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
			if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
				mv_printk("TMF task[%x] timeout.\n", tmf->tmf);
				goto ex_err;
			}
		}

		if (task->task_status.resp == SAS_TASK_COMPLETE &&
		    task->task_status.stat == SAM_STAT_GOOD) {
			res = TMF_RESP_FUNC_COMPLETE;
			break;
		}

		if (task->task_status.resp == SAS_TASK_COMPLETE &&
		      task->task_status.stat == SAS_DATA_UNDERRUN) {
			/* no error, but return the number of bytes of
                         * underrun */
			res = task->task_status.residual;
			break;
		}

		if (task->task_status.resp == SAS_TASK_COMPLETE &&
		      task->task_status.stat == SAS_DATA_OVERRUN) {
			mv_dprintk("blocked task error.\n");
			res = -EMSGSIZE;
			break;
		} else {
			mv_dprintk(" task to dev %016llx response: 0x%x "
				    "status 0x%x\n",
				    SAS_ADDR(dev->sas_addr),
				    task->task_status.resp,
				    task->task_status.stat);
			sas_free_task(task);
			task = NULL;

		}
	}
ex_err:
	BUG_ON(retry == 3 && task != NULL);
	sas_free_task(task);
	return res;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 230 60.05% 1 12.50%
jeff garzik jeff garzik 107 27.94% 2 25.00%
ke wei ke wei 26 6.79% 1 12.50%
dan williams dan williams 18 4.70% 2 25.00%
masanari iida masanari iida 1 0.26% 1 12.50%
james bottomley james bottomley 1 0.26% 1 12.50%
Total 383 100.00% 8 100.00%



static int mvs_debug_issue_ssp_tmf(struct domain_device *dev,
				u8 *lun, struct mvs_tmf_task *tmf)
{
	struct sas_ssp_task ssp_task;
	if (!(dev->tproto & SAS_PROTOCOL_SSP))
		return TMF_RESP_FUNC_ESUPP;

	memcpy(ssp_task.LUN, lun, 8);

	return mvs_exec_internal_tmf_task(dev, &ssp_task,
				sizeof(ssp_task), tmf);
}


Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 55 84.62% 1 20.00%
ke wei ke wei 5 7.69% 1 20.00%
jeff garzik jeff garzik 4 6.15% 2 40.00%
xiangliang yu xiangliang yu 1 1.54% 1 20.00%
Total 65 100.00% 5 100.00%

/*  Standard mandates link reset for ATA  (type 0)
    and hard reset for SSP (type 1) , only for RECOVERY */


static int mvs_debug_I_T_nexus_reset(struct domain_device *dev)
{
	int rc;
	struct sas_phy *phy = sas_get_local_phy(dev);
	int reset_type = (dev->dev_type == SAS_SATA_DEV ||
			(dev->tproto & SAS_PROTOCOL_STP)) ? 0 : 1;
	rc = sas_phy_reset(phy, reset_type);
	sas_put_local_phy(phy);
	msleep(2000);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 42 60.87% 1 16.67%
jeff garzik jeff garzik 17 24.64% 2 33.33%
dan williams dan williams 6 8.70% 1 16.67%
ke wei ke wei 3 4.35% 1 16.67%
james bottomley james bottomley 1 1.45% 1 16.67%
Total 69 100.00% 6 100.00%

/* mandatory SAM-3 */


int mvs_lu_reset(struct domain_device *dev, u8 *lun)
{
	unsigned long flags;
	int rc = TMF_RESP_FUNC_FAILED;
	struct mvs_tmf_task tmf_task;
	struct mvs_device * mvi_dev = dev->lldd_dev;
	struct mvs_info *mvi = mvi_dev->mvi_info;

	tmf_task.tmf = TMF_LU_RESET;
	mvi_dev->dev_status = MVS_DEV_EH;
	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);
	if (rc == TMF_RESP_FUNC_COMPLETE) {
		spin_lock_irqsave(&mvi->lock, flags);
		mvs_release_task(mvi, dev);
		spin_unlock_irqrestore(&mvi->lock, flags);
	}
	/* If failed, fall-through I_T_Nexus reset */
	mv_printk("%s for device[%x]:rc= %d\n", __func__,
			mvi_dev->device_id, rc);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 71 58.68% 2 33.33%
jeff garzik jeff garzik 36 29.75% 2 33.33%
ke wei ke wei 14 11.57% 2 33.33%
Total 121 100.00% 6 100.00%



int mvs_I_T_nexus_reset(struct domain_device *dev)
{
	unsigned long flags;
	int rc = TMF_RESP_FUNC_FAILED;
    struct mvs_device * mvi_dev = (struct mvs_device *)dev->lldd_dev;
	struct mvs_info *mvi = mvi_dev->mvi_info;

	if (mvi_dev->dev_status != MVS_DEV_EH)
		return TMF_RESP_FUNC_COMPLETE;
	else
		mvi_dev->dev_status = MVS_DEV_NORMAL;
	rc = mvs_debug_I_T_nexus_reset(dev);
	mv_printk("%s for device[%x]:rc= %d\n",
		__func__, mvi_dev->device_id, rc);

	spin_lock_irqsave(&mvi->lock, flags);
	mvs_release_task(mvi, dev);
	spin_unlock_irqrestore(&mvi->lock, flags);

	return rc;
}
Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 71 64.55% 2 33.33%
jeff garzik jeff garzik 23 20.91% 2 33.33%
ke wei ke wei 9 8.18% 1 16.67%
xiangliang yu xiangliang yu 7 6.36% 1 16.67%
Total 110 100.00% 6 100.00%

/* optional SAM-3 */


int mvs_query_task(struct sas_task *task)
{
	u32 tag;
	struct scsi_lun lun;
	struct mvs_tmf_task tmf_task;
	int rc = TMF_RESP_FUNC_FAILED;

	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
		struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task;
		struct domain_device *dev = task->dev;
		struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
		struct mvs_info *mvi = mvi_dev->mvi_info;

		int_to_scsilun(cmnd->device->lun, &lun);
		rc = mvs_find_tag(mvi, task, &tag);
		if (rc == 0) {
			rc = TMF_RESP_FUNC_FAILED;
			return rc;
		}

		tmf_task.tmf = TMF_QUERY_TASK;
		tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);

		rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);
		switch (rc) {
		/* The task is still in Lun, release it then */
		case TMF_RESP_FUNC_SUCC:
		/* The task is not in Lun or failed, reset the phy */
		case TMF_RESP_FUNC_FAILED:
		case TMF_RESP_FUNC_COMPLETE:
			break;
		}
	}
	mv_printk("%s:rc= %d\n", __func__, rc);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 153 83.15% 2 40.00%
jeff garzik jeff garzik 25 13.59% 2 40.00%
ke wei ke wei 6 3.26% 1 20.00%
Total 184 100.00% 5 100.00%

/*  mandatory SAM-3, still need free task/slot info */


int mvs_abort_task(struct sas_task *task)
{
	struct scsi_lun lun;
	struct mvs_tmf_task tmf_task;
	struct domain_device *dev = task->dev;
	struct mvs_device *mvi_dev = (struct mvs_device *)dev->lldd_dev;
	struct mvs_info *mvi;
	int rc = TMF_RESP_FUNC_FAILED;
	unsigned long flags;
	u32 tag;

	if (!mvi_dev) {
		mv_printk("Device has removed\n");
		return TMF_RESP_FUNC_FAILED;
	}

	mvi = mvi_dev->mvi_info;

	spin_lock_irqsave(&task->task_state_lock, flags);
	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
		spin_unlock_irqrestore(&task->task_state_lock, flags);
		rc = TMF_RESP_FUNC_COMPLETE;
		goto out;
	}
	spin_unlock_irqrestore(&task->task_state_lock, flags);
	mvi_dev->dev_status = MVS_DEV_EH;
	if (task->lldd_task && task->task_proto & SAS_PROTOCOL_SSP) {
		struct scsi_cmnd * cmnd = (struct scsi_cmnd *)task->uldd_task;

		int_to_scsilun(cmnd->device->lun, &lun);
		rc = mvs_find_tag(mvi, task, &tag);
		if (rc == 0) {
			mv_printk("No such tag in %s\n", __func__);
			rc = TMF_RESP_FUNC_FAILED;
			return rc;
		}

		tmf_task.tmf = TMF_ABORT_TASK;
		tmf_task.tag_of_task_to_be_managed = cpu_to_le16(tag);

		rc = mvs_debug_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task);

		/* if successful, clear the task and callback forwards.*/
		if (rc == TMF_RESP_FUNC_COMPLETE) {
			u32 slot_no;
			struct mvs_slot_info *slot;

			if (task->lldd_task) {
				slot = task->lldd_task;
				slot_no = (u32) (slot - mvi->slot_info);
				spin_lock_irqsave(&mvi->lock, flags);
				mvs_slot_complete(mvi, slot_no, 1);
				spin_unlock_irqrestore(&mvi->lock, flags);
			}
		}

	} else if (task->task_proto & SAS_PROTOCOL_SATA ||
		task->task_proto & SAS_PROTOCOL_STP) {
		if (SAS_SATA_DEV == dev->dev_type) {
			struct mvs_slot_info *slot = task->lldd_task;
			u32 slot_idx = (u32)(slot - mvi->slot_info);
			mv_dprintk("mvs_abort_task() mvi=%p task=%p "
				   "slot=%p slot_idx=x%x\n",
				   mvi, task, slot, slot_idx);
			task->task_state_flags |= SAS_TASK_STATE_ABORTED;
			mvs_slot_task_free(mvi, task, slot, slot_idx);
			rc = TMF_RESP_FUNC_COMPLETE;
			goto out;
		}

	}
out:
	if (rc != TMF_RESP_FUNC_COMPLETE)
		mv_printk("%s:rc= %d\n", __func__, rc);
	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 227 54.57% 2 20.00%
srinivas srinivas 111 26.68% 1 10.00%
jeff garzik jeff garzik 45 10.82% 2 20.00%
ke wei ke wei 11 2.64% 1 10.00%
xiangliang yu xiangliang yu 11 2.64% 1 10.00%
jiri slaby jiri slaby 6 1.44% 1 10.00%
ma jianpeng ma jianpeng 4 0.96% 1 10.00%
james bottomley james bottomley 1 0.24% 1 10.00%
Total 416 100.00% 10 100.00%



int mvs_abort_task_set(struct domain_device *dev, u8 *lun)
{
	int rc = TMF_RESP_FUNC_FAILED;
	struct mvs_tmf_task tmf_task;

	tmf_task.tmf = TMF_ABORT_TASK_SET;
	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);

	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 39 88.64% 1 33.33%
jeff garzik jeff garzik 5 11.36% 2 66.67%
Total 44 100.00% 3 100.00%



int mvs_clear_aca(struct domain_device *dev, u8 *lun)
{
	int rc = TMF_RESP_FUNC_FAILED;
	struct mvs_tmf_task tmf_task;

	tmf_task.tmf = TMF_CLEAR_ACA;
	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);

	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 38 86.36% 1 25.00%
jeff garzik jeff garzik 5 11.36% 2 50.00%
ke wei ke wei 1 2.27% 1 25.00%
Total 44 100.00% 4 100.00%



int mvs_clear_task_set(struct domain_device *dev, u8 *lun)
{
	int rc = TMF_RESP_FUNC_FAILED;
	struct mvs_tmf_task tmf_task;

	tmf_task.tmf = TMF_CLEAR_TASK_SET;
	rc = mvs_debug_issue_ssp_tmf(dev, lun, &tmf_task);

	return rc;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 43 97.73% 1 50.00%
jeff garzik jeff garzik 1 2.27% 1 50.00%
Total 44 100.00% 2 100.00%



static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task,
			u32 slot_idx, int err)
{
	struct mvs_device *mvi_dev = task->dev->lldd_dev;
	struct task_status_struct *tstat = &task->task_status;
	struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf;
	int stat = SAM_STAT_GOOD;


	resp->frame_len = sizeof(struct dev_to_host_fis);
	memcpy(&resp->ending_fis[0],
	       SATA_RECEIVED_D2H_FIS(mvi_dev->taskfileset),
	       sizeof(struct dev_to_host_fis));
	tstat->buf_valid_size = sizeof(*resp);
	if (unlikely(err)) {
		if (unlikely(err & CMD_ISS_STPD))
			stat = SAS_OPEN_REJECT;
		else
			stat = SAS_PROTO_RESPONSE;
       }

	return stat;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 93 68.38% 1 14.29%
jeff garzik jeff garzik 22 16.18% 2 28.57%
srinivas srinivas 16 11.76% 1 14.29%
ke wei ke wei 4 2.94% 2 28.57%
james bottomley james bottomley 1 0.74% 1 14.29%
Total 136 100.00% 7 100.00%



void mvs_set_sense(u8 *buffer, int len, int d_sense,
		int key, int asc, int ascq)
{
	memset(buffer, 0, len);

	if (d_sense) {
		/* Descriptor format */
		if (len < 4) {
			mv_printk("Length %d of sense buffer too small to "
				"fit sense %x:%x:%x", len, key, asc, ascq);
		}

		buffer[0] = 0x72;		/* Response Code        */
		if (len > 1)
			buffer[1] = key;	/* Sense Key */
		if (len > 2)
			buffer[2] = asc;	/* ASC  */
		if (len > 3)
			buffer[3] = ascq;	/* ASCQ */
	} else {
		if (len < 14) {
			mv_printk("Length %d of sense buffer too small to "
				"fit sense %x:%x:%x", len, key, asc, ascq);
		}

		buffer[0] = 0x70;		/* Response Code        */
		if (len > 2)
			buffer[2] = key;	/* Sense Key */
		if (len > 7)
			buffer[7] = 0x0a;	/* Additional Sense Length */
		if (len > 12)
			buffer[12] = asc;	/* ASC */
		if (len > 13)
			buffer[13] = ascq; /* ASCQ */
	}

	return;
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 202 100.00% 1 100.00%
Total 202 100.00% 1 100.00%



void mvs_fill_ssp_resp_iu(struct ssp_response_iu *iu,
				u8 key, u8 asc, u8 asc_q)
{
	iu->datapres = 2;
	iu->response_data_len = 0;
	iu->sense_data_len = 17;
	iu->status = 02;
	mvs_set_sense(iu->sense_data, 17, 0,
			key, asc, asc_q);
}

Contributors
Person Tokens Prop Commits CommitProp
xiangliang yu xiangliang yu 60 100.00% 1 100.00%
Total 60 100.00% 1 100.00%



static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task,
			 u32 slot_idx)
{
	struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
	int stat;
	u32 err_dw0 = le32_to_cpu(*(u32 *)slot->response);
	u32 err_dw1 = le32_to_cpu(*((u32 *)slot->response + 1));
	u32 tfs = 0;
	enum mvs_port_type type = PORT_TYPE_SAS;

	if (err_dw0 & CMD_ISS_STPD)
		MVS_CHIP_DISP->issue_stop(mvi, type, tfs);

	MVS_CHIP_DISP->command_active(mvi, slot_idx);

	stat = SAM_STAT_CHECK_CONDITION;
	switch (task->task_proto) {
	case SAS_PROTOCOL_SSP:
	{
		stat = SAS_ABORTED_TASK;
		if ((err_dw0 & NO_DEST) || err_dw1 & bit(31)) {
			struct ssp_response_iu *iu = slot->response +
				sizeof(struct mvs_err_info);
			mvs_fill_ssp_resp_iu(iu, NOT_READY, 0x04, 01);
			sas_ssp_task_response(mvi->dev, task, iu);
			stat = SAM_STAT_CHECK_CONDITION;
		}
		if (err_dw1 & bit(31))
			mv_printk("reuse same slot, retry command.\n");
		break;
	}
	case SAS_PROTOCOL_SMP:
		stat = SAM_STAT_CHECK_CONDITION;
		break;

	case SAS_PROTOCOL_SATA:
	case SAS_PROTOCOL_STP:
	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
	{
		task->ata_task.use_ncq = 0;
		stat = SAS_PROTO_RESPONSE;
		mvs_sata_done(mvi, task, slot_idx, err_dw0);
	}
		break;
	default:
		break;
	}

	return stat;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 115 46.00% 1 12.50%
xiangliang yu xiangliang yu 97 38.80% 2 25.00%
jeff garzik jeff garzik 31 12.40% 2 25.00%
ke wei ke wei 4 1.60% 1 12.50%
james bottomley james bottomley 2 0.80% 1 12.50%
srinivas srinivas 1 0.40% 1 12.50%
Total 250 100.00% 8 100.00%



int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
{
	u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
	struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
	struct sas_task *task = slot->task;
	struct mvs_device *mvi_dev = NULL;
	struct task_status_struct *tstat;
	struct domain_device *dev;
	u32 aborted;

	void *to;
	enum exec_status sts;

	if (unlikely(!task || !task->lldd_task || !task->dev))
		return -1;

	tstat = &task->task_status;
	dev = task->dev;
	mvi_dev = dev->lldd_dev;

	spin_lock(&task->task_state_lock);
	task->task_state_flags &=
		~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
	task->task_state_flags |= SAS_TASK_STATE_DONE;
	/* race condition*/
	aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
	spin_unlock(&task->task_state_lock);

	memset(tstat, 0, sizeof(*tstat));
	tstat->resp = SAS_TASK_COMPLETE;

	if (unlikely(aborted)) {
		tstat->stat = SAS_ABORTED_TASK;
		if (mvi_dev && mvi_dev->running_req)
			mvi_dev->running_req--;
		if (sas_protocol_ata(task->task_proto))
			mvs_free_reg_set(mvi, mvi_dev);

		mvs_slot_task_free(mvi, task, slot, slot_idx);
		return -1;
	}

	/* when no device attaching, go ahead and complete by error handling*/
	if (unlikely(!mvi_dev || flags)) {
		if (!mvi_dev)
			mv_dprintk("port has not device.\n");
		tstat->stat = SAS_PHY_DOWN;
		goto out;
	}

	/*
         * error info record present; slot->response is 32 bit aligned but may
         * not be 64 bit aligned, so check for zero in two 32 bit reads
         */
	if (unlikely((rx_desc & RXQ_ERR)
		     && (*((u32 *)slot->response)
			 || *(((u32 *)slot->response) + 1)))) {
		mv_dprintk("port %d slot %d rx_desc %X has error info"
			"%016llX.\n", slot->port->sas_port.id, slot_idx,
			 rx_desc, get_unaligned_le64(slot->response));
		tstat->stat = mvs_slot_err(mvi, task, slot_idx);
		tstat->resp = SAS_TASK_COMPLETE;
		goto out;
	}

	switch (task->task_proto) {
	case SAS_PROTOCOL_SSP:
		/* hw says status == 0, datapres == 0 */
		if (rx_desc & RXQ_GOOD) {
			tstat->stat = SAM_STAT_GOOD;
			tstat->resp = SAS_TASK_COMPLETE;
		}
		/* response frame present */
		else if (rx_desc & RXQ_RSP) {
			struct ssp_response_iu *iu = slot->response +
						sizeof(struct mvs_err_info);
			sas_ssp_task_response(mvi->dev, task, iu);
		} else
			tstat->stat = SAM_STAT_CHECK_CONDITION;
		break;

	case SAS_PROTOCOL_SMP: {
			struct scatterlist *sg_resp = &task->smp_task.smp_resp;
			tstat->stat = SAM_STAT_GOOD;
			to = kmap_atomic(sg_page(sg_resp));
			memcpy(to + sg_resp->offset,
				slot->response + sizeof(struct mvs_err_info),
				sg_dma_len(sg_resp));
			kunmap_atomic(to);
			break;
		}

	case SAS_PROTOCOL_SATA:
	case SAS_PROTOCOL_STP:
	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: {
			tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0);
			break;
		}

	default:
		tstat->stat = SAM_STAT_CHECK_CONDITION;
		break;
	}
	if (!slot->port->port_attached) {
		mv_dprintk("port %d has removed.\n", slot->port->sas_port.id);
		tstat->stat = SAS_PHY_DOWN;
	}


out:
	if (mvi_dev && mvi_dev->running_req) {
		mvi_dev->running_req--;
		if (sas_protocol_ata(task->task_proto) && !mvi_dev->running_req)
			mvs_free_reg_set(mvi, mvi_dev);
	}
	mvs_slot_task_free(mvi, task, slot, slot_idx);
	sts = tstat->stat;

	spin_unlock(&mvi->lock);
	if (task->task_done)
		task->task_done(task);

	spin_lock(&mvi->lock);

	return sts;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 405 62.50% 2 16.67%
jeff garzik jeff garzik 103 15.90% 2 16.67%
srinivas srinivas 72 11.11% 1 8.33%
xiangliang yu xiangliang yu 25 3.86% 2 16.67%
james bottomley james bottomley 24 3.70% 2 16.67%
ke wei ke wei 17 2.62% 2 16.67%
andrew morton andrew morton 2 0.31% 1 8.33%
Total 648 100.00% 12 100.00%



void mvs_do_release_task(struct mvs_info *mvi,
		int phy_no, struct domain_device *dev)
{
	u32 slot_idx;
	struct mvs_phy *phy;
	struct mvs_port *port;
	struct mvs_slot_info *slot, *slot2;

	phy = &mvi->phy[phy_no];
	port = phy->port;
	if (!port)
		return;
	/* clean cmpl queue in case request is already finished */
	mvs_int_rx(mvi, false);



	list_for_each_entry_safe(slot, slot2, &port->list, entry) {
		struct sas_task *task;
		slot_idx = (u32) (slot - mvi->slot_info);
		task = slot->task;

		if (dev && task->dev != dev)
			continue;

		mv_printk("Release slot [%x] tag[%x], task [%p]:\n",
			slot_idx, slot->slot_tag, task);
		MVS_CHIP_DISP->command_active(mvi, slot_idx);

		mvs_slot_complete(mvi, slot_idx, 1);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 73 49.66% 1 20.00%
jeff garzik jeff garzik 43 29.25% 2 40.00%
srinivas srinivas 28 19.05% 1 20.00%
ke wei ke wei 3 2.04% 1 20.00%
Total 147 100.00% 5 100.00%



void mvs_release_task(struct mvs_info *mvi,
		      struct domain_device *dev)
{
	int i, phyno[WIDE_PORT_MAX_PHY], num;
	num = mvs_find_dev_phyno(dev, phyno);
	for (i = 0; i < num; i++)
		mvs_do_release_task(mvi, phyno[i], dev);
}

Contributors
Person Tokens Prop Commits CommitProp
srinivas srinivas 34 57.63% 1 20.00%
jeff garzik jeff garzik 15 25.42% 2 40.00%
andy yan andy yan 7 11.86% 1 20.00%
ke wei ke wei 3 5.08% 1 20.00%
Total 59 100.00% 5 100.00%



static void mvs_phy_disconnected(struct mvs_phy *phy)
{
	phy->phy_attached = 0;
	phy->att_dev_info = 0;
	phy->att_dev_sas_addr = 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 17 58.62% 1 33.33%
jeff garzik jeff garzik 12 41.38% 2 66.67%
Total 29 100.00% 3 100.00%



static void mvs_work_queue(struct work_struct *work)
{
	struct delayed_work *dw = container_of(work, struct delayed_work, work);
	struct mvs_wq *mwq = container_of(dw, struct mvs_wq, work_q);
	struct mvs_info *mvi = mwq->mvi;
	unsigned long flags;
	u32 phy_no = (unsigned long) mwq->data;
	struct sas_ha_struct *sas_ha = mvi->sas;
	struct mvs_phy *phy = &mvi->phy[phy_no];
	struct asd_sas_phy *sas_phy = &phy->sas_phy;

	spin_lock_irqsave(&mvi->lock, flags);
	if (mwq->handler & PHY_PLUG_EVENT) {

		if (phy->phy_event & PHY_PLUG_OUT) {
			u32 tmp;
			struct sas_identify_frame *id;
			id = (struct sas_identify_frame *)phy->frame_rcvd;
			tmp = MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no);
			phy->phy_event &= ~PHY_PLUG_OUT;
			if (!(tmp & PHY_READY_MASK)) {
				sas_phy_disconnected(sas_phy);
				mvs_phy_disconnected(phy);
				sas_ha->notify_phy_event(sas_phy,
					PHYE_LOSS_OF_SIGNAL);
				mv_dprintk("phy%d Removed Device\n", phy_no);
			} else {
				MVS_CHIP_DISP->detect_porttype(mvi, phy_no);
				mvs_update_phyinfo(mvi, phy_no, 1);
				mvs_bytes_dmaed(mvi, phy_no);
				mvs_port_notify_formed(sas_phy, 0);
				mv_dprintk("phy%d Attached Device\n", phy_no);
			}
		}
	} else if (mwq->handler & EXP_BRCT_CHG) {
		phy->phy_event &= ~EXP_BRCT_CHG;
		sas_ha->notify_port_event(sas_phy,
				PORTE_BROADCAST_RCVD);
		mv_dprintk("phy%d Got Broadcast Change\n", phy_no);
	}
	list_del(&mwq->entry);
	spin_unlock_irqrestore(&mvi->lock, flags);
	kfree(mwq);
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 165 55.00% 1 20.00%
jeff garzik jeff garzik 62 20.67% 2 40.00%
xiangliang yu xiangliang yu 53 17.67% 1 20.00%
ke wei ke wei 20 6.67% 1 20.00%
Total 300 100.00% 5 100.00%



static int mvs_handle_event(struct mvs_info *mvi, void *data, int handler)
{
	struct mvs_wq *mwq;
	int ret = 0;

	mwq = kmalloc(sizeof(struct mvs_wq), GFP_ATOMIC);
	if (mwq) {
		mwq->mvi = mvi;
		mwq->data = data;
		mwq->handler = handler;
		MV_INIT_DELAYED_WORK(&mwq->work_q, mvs_work_queue, mwq);
		list_add_tail(&mwq->entry, &mvi->wq_list);
		schedule_delayed_work(&mwq->work_q, HZ * 2);
	} else
		ret = -ENOMEM;

	return ret;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 65 58.56% 1 20.00%
jeff garzik jeff garzik 35 31.53% 2 40.00%
ke wei ke wei 11 9.91% 2 40.00%
Total 111 100.00% 5 100.00%



static void mvs_sig_time_out(unsigned long tphy)
{
	struct mvs_phy *phy = (struct mvs_phy *)tphy;
	struct mvs_info *mvi = phy->mvi;
	u8 phy_no;

	for (phy_no = 0; phy_no < mvi->chip->n_phy; phy_no++) {
		if (&mvi->phy[phy_no] == phy) {
			mv_dprintk("Get signature time out, reset phy %d\n",
				phy_no+mvi->id*mvi->chip->n_phy);
			MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_HARD_RESET);
		}
	}
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 76 80.00% 1 25.00%
jeff garzik jeff garzik 18 18.95% 2 50.00%
xiangliang yu xiangliang yu 1 1.05% 1 25.00%
Total 95 100.00% 4 100.00%



void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
{
	u32 tmp;
	struct mvs_phy *phy = &mvi->phy[phy_no];

	phy->irq_status = MVS_CHIP_DISP->read_port_irq_stat(mvi, phy_no);
	MVS_CHIP_DISP->write_port_irq_stat(mvi, phy_no, phy->irq_status);
	mv_dprintk("phy %d ctrl sts=0x%08X.\n", phy_no+mvi->id*mvi->chip->n_phy,
		MVS_CHIP_DISP->read_phy_ctl(mvi, phy_no));
	mv_dprintk("phy %d irq sts = 0x%08X\n", phy_no+mvi->id*mvi->chip->n_phy,
		phy->irq_status);

	/*
        * events is port event now ,
        * we need check the interrupt status which belongs to per port.
        */

	if (phy->irq_status & PHYEV_DCDR_ERR) {
		mv_dprintk("phy %d STP decoding error.\n",
		phy_no + mvi->id*mvi->chip->n_phy);
	}

	if (phy->irq_status & PHYEV_POOF) {
		mdelay(500);
		if (!(phy->phy_event & PHY_PLUG_OUT)) {
			int dev_sata = phy->phy_type & PORT_TYPE_SATA;
			int ready;
			mvs_do_release_task(mvi, phy_no, NULL);
			phy->phy_event |= PHY_PLUG_OUT;
			MVS_CHIP_DISP->clear_srs_irq(mvi, 0, 1);
			mvs_handle_event(mvi,
				(void *)(unsigned long)phy_no,
				PHY_PLUG_EVENT);
			ready = mvs_is_phy_ready(mvi, phy_no);
			if (ready || dev_sata) {
				if (MVS_CHIP_DISP->stp_reset)
					MVS_CHIP_DISP->stp_reset(mvi,
							phy_no);
				else
					MVS_CHIP_DISP->phy_reset(mvi,
							phy_no, MVS_SOFT_RESET);
				return;
			}
		}
	}

	if (phy->irq_status & PHYEV_COMWAKE) {
		tmp = MVS_CHIP_DISP->read_port_irq_mask(mvi, phy_no);
		MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no,
					tmp | PHYEV_SIG_FIS);
		if (phy->timer.function == NULL) {
			phy->timer.data = (unsigned long)phy;
			phy->timer.function = mvs_sig_time_out;
			phy->timer.expires = jiffies + 5*HZ;
			add_timer(&phy->timer);
		}
	}
	if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
		phy->phy_status = mvs_is_phy_ready(mvi, phy_no);
		mv_dprintk("notify plug in on phy[%d]\n", phy_no);
		if (phy->phy_status) {
			mdelay(10);
			MVS_CHIP_DISP->detect_porttype(mvi, phy_no);
			if (phy->phy_type & PORT_TYPE_SATA) {
				tmp = MVS_CHIP_DISP->read_port_irq_mask(
						mvi, phy_no);
				tmp &= ~PHYEV_SIG_FIS;
				MVS_CHIP_DISP->write_port_irq_mask(mvi,
							phy_no, tmp);
			}
			mvs_update_phyinfo(mvi, phy_no, 0);
			if (phy->phy_type & PORT_TYPE_SAS) {
				MVS_CHIP_DISP->phy_reset(mvi, phy_no, MVS_PHY_TUNE);
				mdelay(10);
			}

			mvs_bytes_dmaed(mvi, phy_no);
			/* whether driver is going to handle hot plug */
			if (phy->phy_event & PHY_PLUG_OUT) {
				mvs_port_notify_formed(&phy->sas_phy, 0);
				phy->phy_event &= ~PHY_PLUG_OUT;
			}
		} else {
			mv_dprintk("plugin interrupt but phy%d is gone\n",
				phy_no + mvi->id*mvi->chip->n_phy);
		}
	} else if (phy->irq_status & PHYEV_BROAD_CH) {
		mv_dprintk("phy %d broadcast change.\n",
			phy_no + mvi->id*mvi->chip->n_phy);
		mvs_handle_event(mvi, (void *)(unsigned long)phy_no,
				EXP_BRCT_CHG);
	}
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 342 59.69% 1 14.29%
jeff garzik jeff garzik 146 25.48% 2 28.57%
xiangliang yu xiangliang yu 41 7.16% 2 28.57%
srinivas srinivas 39 6.81% 1 14.29%
ke wei ke wei 5 0.87% 1 14.29%
Total 573 100.00% 7 100.00%



int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
{
	u32 rx_prod_idx, rx_desc;
	bool attn = false;

	/* the first dword in the RX ring is special: it contains
         * a mirror of the hardware's RX producer index, so that
         * we don't have to stall the CPU reading that register.
         * The actual RX ring is offset by one dword, due to this.
         */
	rx_prod_idx = mvi->rx_cons;
	mvi->rx_cons = le32_to_cpu(mvi->rx[0]);
	if (mvi->rx_cons == 0xfff)	/* h/w hasn't touched RX ring yet */
		return 0;

	/* The CMPL_Q may come late, read from register and try again
        * note: if coalescing is enabled,
        * it will need to read from register every time for sure
        */
	if (unlikely(mvi->rx_cons == rx_prod_idx))
		mvi->rx_cons = MVS_CHIP_DISP->rx_update(mvi) & RX_RING_SZ_MASK;

	if (mvi->rx_cons == rx_prod_idx)
		return 0;

	while (mvi->rx_cons != rx_prod_idx) {
		/* increment our internal RX consumer pointer */
		rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1);
		rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]);

		if (likely(rx_desc & RXQ_DONE))
			mvs_slot_complete(mvi, rx_desc, 0);
		if (rx_desc & RXQ_ATTN) {
			attn = true;
		} else if (rx_desc & RXQ_ERR) {
			if (!(rx_desc & RXQ_DONE))
				mvs_slot_complete(mvi, rx_desc, 0);
		} else if (rx_desc & RXQ_SLOT_RESET) {
			mvs_slot_free(mvi, rx_desc);
		}
	}

	if (attn && self_clear)
		MVS_CHIP_DISP->int_full(mvi);
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 190 86.36% 1 33.33%
jeff garzik jeff garzik 30 13.64% 2 66.67%
Total 220 100.00% 3 100.00%



int mvs_gpio_write(struct sas_ha_struct *sha, u8 reg_type, u8 reg_index,
			u8 reg_count, u8 *write_data)
{
	struct mvs_prv_info *mvs_prv = sha->lldd_ha;
	struct mvs_info *mvi = mvs_prv->mvi[0];

	if (MVS_CHIP_DISP->gpio_write) {
		return MVS_CHIP_DISP->gpio_write(mvs_prv, reg_type,
			reg_index, reg_count, write_data);
	}

	return -ENOSYS;
}
Contributors
Person Tokens Prop Commits CommitProp
wilfried weissmann wilfried weissmann 72 100.00% 1 100.00%
Total 72 100.00% 1 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
andy yan andy yan 6770 60.09% 4 9.09%
jeff garzik jeff garzik 1794 15.92% 2 4.55%
xiangliang yu xiangliang yu 1242 11.02% 10 22.73%
ke wei ke wei 753 6.68% 6 13.64%
srinivas srinivas 477 4.23% 1 2.27%
wilfried weissmann wilfried weissmann 72 0.64% 1 2.27%
james bottomley james bottomley 53 0.47% 5 11.36%
dan williams dan williams 33 0.29% 5 11.36%
hannes reinecke hannes reinecke 28 0.25% 3 6.82%
rickard strandqvist rickard strandqvist 17 0.15% 1 2.27%
christoph hellwig christoph hellwig 9 0.08% 1 2.27%
jiri slaby jiri slaby 6 0.05% 1 2.27%
davis mosans davis mosans 6 0.05% 1 2.27%
ma jianpeng ma jianpeng 4 0.04% 1 2.27%
andrew morton andrew morton 2 0.02% 1 2.27%
masanari iida masanari iida 1 0.01% 1 2.27%
Total 11267 100.00% 44 100.00%
  Directory: drivers/scsi/mvsas

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
jeff garzik	jeff garzik	38	73.08%	2	50.00%
ke wei	ke wei	13	25.00%	1	25.00%
andy yan	andy yan	1	1.92%	1	25.00%
	Total	52	100.00%	4	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/scsi/mvsas/mv_sas.c

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Overall Contributors
