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Merge branches 'mlx5', 'qib' and 'srp' into for-next
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Roland Dreier committed Jul 11, 2013
4 parents 0eba551 + 5e631a0 + 0b3ddf3 + 80d5e8a commit e04abfa
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Showing 10 changed files with 191 additions and 26 deletions.
8 changes: 4 additions & 4 deletions drivers/infiniband/hw/mlx5/mr.c
Original file line number Diff line number Diff line change
Expand Up @@ -171,7 +171,7 @@ static ssize_t size_write(struct file *filp, const char __user *buf,
int c;

if (copy_from_user(lbuf, buf, sizeof(lbuf)))
return -EPERM;
return -EFAULT;

c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
Expand Down Expand Up @@ -208,7 +208,7 @@ static ssize_t size_read(struct file *filp, char __user *buf, size_t count,
return err;

if (copy_to_user(buf, lbuf, err))
return -EPERM;
return -EFAULT;

*pos += err;

Expand All @@ -233,7 +233,7 @@ static ssize_t limit_write(struct file *filp, const char __user *buf,
int c;

if (copy_from_user(lbuf, buf, sizeof(lbuf)))
return -EPERM;
return -EFAULT;

c = order2idx(dev, ent->order);
lbuf[sizeof(lbuf) - 1] = 0;
Expand Down Expand Up @@ -270,7 +270,7 @@ static ssize_t limit_read(struct file *filp, char __user *buf, size_t count,
return err;

if (copy_to_user(buf, lbuf, err))
return -EPERM;
return -EFAULT;

*pos += err;

Expand Down
2 changes: 1 addition & 1 deletion drivers/infiniband/hw/qib/qib.h
Original file line number Diff line number Diff line change
Expand Up @@ -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;
}
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);

Expand Down
114 changes: 114 additions & 0 deletions drivers/infiniband/hw/qib/qib_iba7322.c
Original file line number Diff line number Diff line change
Expand Up @@ -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 int serdes_7322_init_old(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))

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

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

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) {
case qib_sdma_state_s00_hw_down:
break;
Expand Down Expand Up @@ -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);

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) {
qib_dev_err(dd,
"Fatal Hardware Error, no longer usable, SN %.16s\n",
Expand Down Expand Up @@ -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);
}

/*
* 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[] = {
[qib_sdma_state_s00_hw_down] = {
.go_s99_running_tofalse = 1,
Expand Down
6 changes: 3 additions & 3 deletions drivers/infiniband/hw/qib/qib_init.c
Original file line number Diff line number Diff line change
Expand Up @@ -1350,7 +1350,7 @@ static void cleanup_device_data(struct qib_devdata *dd)
if (dd->pageshadow) {
struct page **tmpp = dd->pageshadow;
dma_addr_t *tmpd = dd->physshadow;
int i, cnt = 0;
int i;

for (ctxt = 0; ctxt < dd->cfgctxts; ctxt++) {
int ctxt_tidbase = ctxt * dd->rcvtidcnt;
Expand All @@ -1363,13 +1363,13 @@ static void cleanup_device_data(struct qib_devdata *dd)
PAGE_SIZE, PCI_DMA_FROMDEVICE);
qib_release_user_pages(&tmpp[i], 1);
tmpp[i] = NULL;
cnt++;
}
}

tmpp = dd->pageshadow;
dd->pageshadow = NULL;
vfree(tmpp);
dd->physshadow = NULL;
vfree(tmpd);
}

/*
Expand Down
56 changes: 56 additions & 0 deletions drivers/infiniband/hw/qib/qib_sdma.c
Original file line number Diff line number Diff line change
Expand Up @@ -708,6 +708,62 @@ int qib_sdma_verbs_send(struct qib_pportdata *ppd,
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,
enum qib_sdma_events event)
{
Expand Down
3 changes: 1 addition & 2 deletions drivers/infiniband/ulp/srp/ib_srp.c
Original file line number Diff line number Diff line change
Expand Up @@ -1753,8 +1753,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
if (!req || !srp_claim_req(target, req, scmnd))
return FAILED;
if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
SRP_TSK_ABORT_TASK) == 0 ||
target->transport_offline)
SRP_TSK_ABORT_TASK) == 0)
ret = SUCCESS;
else if (target->transport_offline)
ret = FAST_IO_FAIL;
Expand Down
10 changes: 5 additions & 5 deletions drivers/net/ethernet/mellanox/mlx5/core/cmd.c
Original file line number Diff line number Diff line change
Expand Up @@ -693,7 +693,7 @@ static ssize_t dbg_write(struct file *filp, const char __user *buf,
return -ENOMEM;

if (copy_from_user(lbuf, buf, sizeof(lbuf)))
return -EPERM;
return -EFAULT;

lbuf[sizeof(lbuf) - 1] = 0;

Expand Down Expand Up @@ -889,7 +889,7 @@ static ssize_t data_write(struct file *filp, const char __user *buf,
return -ENOMEM;

if (copy_from_user(ptr, buf, count)) {
err = -EPERM;
err = -EFAULT;
goto out;
}
dbg->in_msg = ptr;
Expand Down Expand Up @@ -919,7 +919,7 @@ static ssize_t data_read(struct file *filp, char __user *buf, size_t count,

copy = min_t(int, count, dbg->outlen);
if (copy_to_user(buf, dbg->out_msg, copy))
return -EPERM;
return -EFAULT;

*pos += copy;

Expand Down Expand Up @@ -949,7 +949,7 @@ static ssize_t outlen_read(struct file *filp, char __user *buf, size_t count,
return err;

if (copy_to_user(buf, &outlen, err))
return -EPERM;
return -EFAULT;

*pos += err;

Expand All @@ -974,7 +974,7 @@ static ssize_t outlen_write(struct file *filp, const char __user *buf,
dbg->outlen = 0;

if (copy_from_user(outlen_str, buf, count))
return -EPERM;
return -EFAULT;

outlen_str[7] = 0;

Expand Down
12 changes: 4 additions & 8 deletions drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
Original file line number Diff line number Diff line change
Expand Up @@ -148,7 +148,6 @@ static ssize_t average_read(struct file *filp, char __user *buf, size_t count,
struct mlx5_cmd_stats *stats;
u64 field = 0;
int ret;
int err;
char tbuf[22];

if (*pos)
Expand All @@ -161,9 +160,8 @@ static ssize_t average_read(struct file *filp, char __user *buf, size_t count,
spin_unlock(&stats->lock);
ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field);
if (ret > 0) {
err = copy_to_user(buf, tbuf, ret);
if (err)
return err;
if (copy_to_user(buf, tbuf, ret))
return -EFAULT;
}

*pos += ret;
Expand Down Expand Up @@ -418,7 +416,6 @@ static ssize_t dbg_read(struct file *filp, char __user *buf, size_t count,
char tbuf[18];
u64 field;
int ret;
int err;

if (*pos)
return 0;
Expand All @@ -445,9 +442,8 @@ static ssize_t dbg_read(struct file *filp, char __user *buf, size_t count,

ret = snprintf(tbuf, sizeof(tbuf), "0x%llx\n", field);
if (ret > 0) {
err = copy_to_user(buf, tbuf, ret);
if (err)
return err;
if (copy_to_user(buf, tbuf, ret))
return -EFAULT;
}

*pos += ret;
Expand Down
2 changes: 1 addition & 1 deletion drivers/net/ethernet/mellanox/mlx5/core/main.c
Original file line number Diff line number Diff line change
Expand Up @@ -212,7 +212,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
set_ctx->hca_cap.log_max_qp = dev->profile->log_max_qp;

memset(&set_out, 0, sizeof(set_out));
set_ctx->hca_cap.uar_page_sz = cpu_to_be16(PAGE_SHIFT - 12);
set_ctx->hca_cap.log_uar_page_sz = cpu_to_be16(PAGE_SHIFT - 12);
set_ctx->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_SET_HCA_CAP);
err = mlx5_cmd_exec(dev, set_ctx, sizeof(*set_ctx),
&set_out, sizeof(set_out));
Expand Down
4 changes: 2 additions & 2 deletions include/linux/mlx5/device.h
Original file line number Diff line number Diff line change
Expand Up @@ -317,8 +317,8 @@ struct mlx5_hca_cap {
u8 log_max_pd;
u8 rsvd25;
u8 log_max_xrcd;
u8 rsvd26[40];
__be32 uar_page_sz;
u8 rsvd26[42];
__be16 log_uar_page_sz;
u8 rsvd27[28];
u8 log_msx_atomic_size_qp;
u8 rsvd28[2];
Expand Down

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