spin_unlock_irqrestore(&dd->dc8051_lock, flags);
/* Shutdown the LCB */
lcb_shutdown(dd, 1);
- /* Going to OFFLINE would have causes the 8051 to put the
+ /*
+ * Going to OFFLINE would have causes the 8051 to put the
* SerDes into reset already. Just need to shut down the 8051,
- * itself. */
+ * itself.
+ */
write_csr(dd, DC_DC8051_CFG_RST, 0x1);
}
-/* Calling this after the DC has been brought out of reset should not
- * do any damage. */
+/*
+ * Calling this after the DC has been brought out of reset should not
+ * do any damage.
+ */
static void dc_start(struct hfi1_devdata *dd)
{
unsigned long flags;
u64 msg;
int ret;
- /* msg is bytes 1-4 of the 40-bit idle message - the command code
- is stripped off */
+ /*
+ * msg is bytes 1-4 of the 40-bit idle message - the command code
+ * is stripped off
+ */
ret = read_idle_sma(dd, &msg);
if (ret)
return;
}
}
-/* Several pieces of LNI information were cached for SMA in ppd.
- * Reset these on link down */
+/*
+ * Several pieces of LNI information were cached for SMA in ppd.
+ * Reset these on link down
+ */
static void reset_neighbor_info(struct hfi1_pportdata *ppd)
{
ppd->neighbor_guid = 0;
/* disable the port */
clear_rcvctrl(ppd->dd, RCV_CTRL_RCV_PORT_ENABLE_SMASK);
- /* If there is no cable attached, turn the DC off. Otherwise,
- * start the link bring up. */
+ /*
+ * If there is no cable attached, turn the DC off. Otherwise,
+ * start the link bring up.
+ */
if (!qsfp_mod_present(ppd)) {
dc_shutdown(ppd->dd);
} else {
}
if (queue_link_down) {
- /* if the link is already going down or disabled, do not
- * queue another */
+ /*
+ * if the link is already going down or disabled, do not
+ * queue another
+ */
if ((ppd->host_link_state &
(HLS_GOING_OFFLINE | HLS_LINK_COOLDOWN)) ||
ppd->link_enabled == 0) {
/* set status bit */
dd->err_info_rcvport.status_and_code |=
OPA_EI_STATUS_SMASK;
- /* save first 2 flits in the packet that caused
- * the error */
+ /*
+ * save first 2 flits in the packet that caused
+ * the error
+ */
dd->err_info_rcvport.packet_flit1 = hdr0;
dd->err_info_rcvport.packet_flit2 = hdr1;
}
}
static const struct is_table is_table[] = {
-/* start end
- name func interrupt func */
+/*
+ * start end
+ * name func interrupt func
+ */
{ IS_GENERAL_ERR_START, IS_GENERAL_ERR_END,
is_misc_err_name, is_misc_err_int },
{ IS_SDMAENG_ERR_START, IS_SDMAENG_ERR_END,
*/
memset(changing, 0, sizeof(changing));
memset(lowering_dedicated, 0, sizeof(lowering_dedicated));
- /* NOTE: Assumes that the individual VL bits are adjacent and in
- increasing order */
+ /*
+ * NOTE: Assumes that the individual VL bits are adjacent and in
+ * increasing order
+ */
stat_mask =
SEND_CM_CREDIT_USED_STATUS_VL0_RETURN_CREDIT_STATUS_SMASK;
changing_mask = 0;
}
rcd->rcvavail_timeout = timeout;
- /* timeout cannot be larger than rcv_intr_timeout_csr which has already
- been verified to be in range */
+ /*
+ * timeout cannot be larger than rcv_intr_timeout_csr which has already
+ * been verified to be in range
+ */
write_kctxt_csr(dd, rcd->ctxt, RCV_AVAIL_TIME_OUT,
(u64)timeout << RCV_AVAIL_TIME_OUT_TIME_OUT_RELOAD_SHIFT);
}
if (op & HFI1_RCVCTRL_TIDFLOW_DIS)
rcvctrl &= ~RCV_CTXT_CTRL_TID_FLOW_ENABLE_SMASK;
if (op & HFI1_RCVCTRL_ONE_PKT_EGR_ENB) {
- /* In one-packet-per-eager mode, the size comes from
- the RcvArray entry. */
+ /*
+ * In one-packet-per-eager mode, the size comes from
+ * the RcvArray entry.
+ */
rcvctrl &= ~RCV_CTXT_CTRL_EGR_BUF_SIZE_SMASK;
rcvctrl |= RCV_CTXT_CTRL_ONE_PACKET_PER_EGR_BUFFER_SMASK;
}
me->type = IRQ_RCVCTXT;
} else {
/* not in our expected range - complain, then
- ignore it */
+ * ignore it
+ */
dd_dev_err(dd,
"Unexpected extra MSI-X interrupt %d\n", i);
continue;
/* PIO Send buffers */
/* SDMA Send buffers */
- /* These are not normally read, and (presently) have no method
- to be read, so are not pre-initialized */
+ /*
+ * These are not normally read, and (presently) have no method
+ * to be read, so are not pre-initialized
+ */
/* RcvHdrAddr */
/* RcvHdrTailAddr */
write_csr(dd, MISC_CFG_RSA_SIGNATURE + (8 * i), 0);
write_csr(dd, MISC_CFG_RSA_MODULUS + (8 * i), 0);
}
- /* MISC_CFG_SHA_PRELOAD leave alone - always reads 0 and can
- only be written 128-byte chunks */
+ /*
+ * MISC_CFG_SHA_PRELOAD leave alone - always reads 0 and can
+ * only be written 128-byte chunks
+ */
/* init RSA engine to clear lingering errors */
write_csr(dd, MISC_CFG_RSA_CMD, 1);
write_csr(dd, MISC_CFG_RSA_MU, 0);
dd->minrev = (dd->revision >> CCE_REVISION_CHIP_REV_MINOR_SHIFT)
& CCE_REVISION_CHIP_REV_MINOR_MASK;
- /* obtain the hardware ID - NOT related to unit, which is a
- software enumeration */
+ /*
+ * obtain the hardware ID - NOT related to unit, which is a
+ * software enumeration
+ */
reg = read_csr(dd, CCE_REVISION2);
dd->hfi1_id = (reg >> CCE_REVISION2_HFI_ID_SHIFT)
& CCE_REVISION2_HFI_ID_MASK;
#define PIO_CMASK 0x7ff /* counter mask for free and fill counters */
#define MAX_EAGER_ENTRIES 2048 /* max receive eager entries */
#define MAX_TID_PAIR_ENTRIES 1024 /* max receive expected pairs */
-/* Virtual? Allocation Unit, defined as AU = 8*2^vAU, 64 bytes, AU is fixed
- at 64 bytes for all generation one devices */
+/*
+ * Virtual? Allocation Unit, defined as AU = 8*2^vAU, 64 bytes, AU is fixed
+ * at 64 bytes for all generation one devices
+ */
#define CM_VAU 3
/* HFI link credit count, AKA receive buffer depth (RBUF_DEPTH) */
#define CM_GLOBAL_CREDITS 0x940
#define LCB_CRC_48B 0x2 /* 48b CRC */
#define LCB_CRC_12B_16B_PER_LANE 0x3 /* 12b-16b per lane CRC */
-/* the following enum is (almost) a copy/paste of the definition
- * in the OPA spec, section 20.2.2.6.8 (PortInfo) */
+/*
+ * the following enum is (almost) a copy/paste of the definition
+ * in the OPA spec, section 20.2.2.6.8 (PortInfo)
+ */
enum {
PORT_LTP_CRC_MODE_NONE = 0,
PORT_LTP_CRC_MODE_14 = 1, /* 14-bit LTP CRC mode (optional) */
break;
}
if (dd->flags & HFI1_FORCED_FREEZE) {
- /* Don't allow context reset if we are into
- * forced freeze */
+ /*
+ * Don't allow context reset if we are into
+ * forced freeze
+ */
ret = -ENODEV;
break;
}
/* step 3: enable XDMEM access */
sbus_request(dd, ra, 0x01, WRITE_SBUS_RECEIVER, 0x00000d40);
/* step 4: load firmware into SBus Master XDMEM */
- /* NOTE: the dmem address, write_en, and wdata are all pre-packed,
- we only need to pick up the bytes and write them */
+ /*
+ * NOTE: the dmem address, write_en, and wdata are all pre-packed,
+ * we only need to pick up the bytes and write them
+ */
for (i = 0; i < fdet->firmware_len; i += 4) {
sbus_request(dd, ra, 0x04, WRITE_SBUS_RECEIVER,
*(u32 *)&fdet->firmware_ptr[i]);
/* step 6: allow SBus Spico to run */
sbus_request(dd, ra, 0x05, WRITE_SBUS_RECEIVER, 0x00000000);
- /* steps 7-11: run RSA, if it succeeds, firmware is available to
- be swapped */
+ /*
+ * steps 7-11: run RSA, if it succeeds, firmware is available to
+ * be swapped
+ */
return run_rsa(dd, "PCIe serdes", fdet->signature);
}
src_ptr = (u32 *)((u8 *)src_ptr + seek);
- /* We expect the field to be byte aligned and whole byte
- * lengths if we are here */
+ /*
+ * We expect the field to be byte aligned and whole byte
+ * lengths if we are here
+ */
memcpy(data, src_ptr, wlen);
return 0;
}
/* CA's max number of 64 entry units in the congestion control table */
u8 cc_max_table_entries;
- /* begin congestion log related entries
- * cc_log_lock protects all congestion log related data */
+ /*
+ * begin congestion log related entries
+ * cc_log_lock protects all congestion log related data
+ */
spinlock_t cc_log_lock ____cacheline_aligned_in_smp;
u8 threshold_cong_event_map[OPA_MAX_SLS / 8];
u16 threshold_event_counter;
for (pidx = 0; pidx < dd->num_pports; ++pidx) {
ppd = dd->pport + pidx;
- /* start the serdes - must be after interrupts are
- enabled so we are notified when the link goes up */
+ /*
+ * start the serdes - must be after interrupts are
+ * enabled so we are notified when the link goes up
+ */
lastfail = bringup_serdes(ppd);
if (lastfail)
dd_dev_info(dd,
user_credit_return_threshold = 100;
compute_krcvqs();
- /* sanitize receive interrupt count, time must wait until after
- the hardware type is known */
+ /*
+ * sanitize receive interrupt count, time must wait until after
+ * the hardware type is known
+ */
if (rcv_intr_count > RCV_HDR_HEAD_COUNTER_MASK)
rcv_intr_count = RCV_HDR_HEAD_COUNTER_MASK;
/* reject invalid combinations */
/* read the cached value of DC_LCB_STS_ROUND_TRIP_LTP_CNT */
read_lcb_cache(DC_LCB_STS_ROUND_TRIP_LTP_CNT, &tmp);
- /* this counter is 16 bits wide, but the replay_depth.wire
- * variable is only 8 bits */
+ /*
+ * this counter is 16 bits wide, but the replay_depth.wire
+ * variable is only 8 bits
+ */
if (tmp > 0xff)
tmp = 0xff;
pi->replay_depth.wire = tmp;
/* IB numbers ports from 1, hw from 0 */
ppd = dd->pport + (port - 1);
lstate = driver_lstate(ppd);
- /* it's known that async_update is 0 by this point, but include
- * the explicit check for clarity */
+ /*
+ * it's known that async_update is 0 by this point, but include
+ * the explicit check for clarity
+ */
if (!async_update &&
(lstate == IB_PORT_ARMED || lstate == IB_PORT_ACTIVE)) {
smp->status |= IB_SMP_INVALID_FIELD;
#define __CI_PAGE_MASK ~(__CI_PAGE_SIZE - 1)
#define __CI_PAGE_NUM(a) ((a) & __CI_PAGE_MASK)
- /* check that addr is within spec, and
- * addr and (addr + len - 1) are on the same "page" */
+ /*
+ * check that addr is within spec, and
+ * addr and (addr + len - 1) are on the same "page"
+ */
if (addr >= 4096 ||
(__CI_PAGE_NUM(addr) != __CI_PAGE_NUM(addr + len - 1))) {
smp->status |= IB_SMP_INVALID_FIELD;
case OPA_VLARB_HIGH_ELEMENTS:
(void)fm_set_table(ppd, FM_TBL_VL_HIGH_ARB, p);
break;
- /* neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX
- * can be changed from the default values */
+ /*
+ * neither OPA_VLARB_PREEMPT_ELEMENTS, or OPA_VLARB_PREEMPT_MATRIX
+ * can be changed from the default values
+ */
case OPA_VLARB_PREEMPT_ELEMENTS:
/* FALLTHROUGH */
case OPA_VLARB_PREEMPT_MATRIX:
};
struct opa_port_error_counters64_msg {
- /* Request contains first two fields, response contains the
- * whole magilla */
+ /*
+ * Request contains first two fields, response contains the
+ * whole magilla
+ */
__be64 port_select_mask[4];
__be32 vl_select_mask;
/* rsp->port_vl_xmit_time_cong is 0 for HFIs */
/* rsp->port_vl_xmit_wasted_bw ??? */
/* port_vl_xmit_wait_data - TXE (table 13-9 HFI spec) ???
- * does this differ from rsp->vls[vfi].port_vl_xmit_wait */
+ * does this differ from rsp->vls[vfi].port_vl_xmit_wait
+ */
/*rsp->vls[vfi].port_vl_mark_fecn =
- cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT
- + offset));
- */
+ * cpu_to_be64(read_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT
+ * + offset));
+ */
vlinfo++;
vfi++;
}
/* ExcessiverBufferOverrunInfo */
reg = read_csr(dd, RCV_ERR_INFO);
if (reg & RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK) {
- /* if the RcvExcessBufferOverrun bit is set, save SC of
- * first pkt that encountered an excess buffer overrun */
+ /*
+ * if the RcvExcessBufferOverrun bit is set, save SC of
+ * first pkt that encountered an excess buffer overrun
+ */
u8 tmp = (u8)reg;
tmp &= RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SC_SMASK;
write_dev_cntr(dd, C_DC_RCV_BBL, CNTR_INVALID_VL, 0);
/* Only applicable for switch */
- /*if (counter_select & CS_PORT_MARK_FECN)
- write_csr(dd, DCC_PRF_PORT_MARK_FECN_CNT, 0);*/
+ /* if (counter_select & CS_PORT_MARK_FECN)
+ * write_csr(dd, DCC_PRF_PORT_MARK_FECN_CNT, 0);
+ */
if (counter_select & CS_PORT_RCV_CONSTRAINT_ERRORS)
write_port_cntr(ppd, C_SW_RCV_CSTR_ERR, CNTR_INVALID_VL, 0);
if (counter_select & CS_PORT_RCV_BUBBLE)
write_dev_cntr(dd, C_DC_RCV_BBL_VL, idx_from_vl(vl), 0);
- /*if (counter_select & CS_PORT_MARK_FECN)
- write_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT + offset, 0);
- */
+ /* if (counter_select & CS_PORT_MARK_FECN)
+ * write_csr(dd, DCC_PRF_PORT_VL_MARK_FECN_CNT + offset, 0);
+ */
/* port_vl_xmit_discards ??? */
}
/* ExcessiverBufferOverrunInfo */
if (error_info_select & ES_EXCESSIVE_BUFFER_OVERRUN_INFO)
- /* status bit is essentially kept in the h/w - bit 5 of
- * RCV_ERR_INFO */
+ /*
+ * status bit is essentially kept in the h/w - bit 5 of
+ * RCV_ERR_INFO
+ */
write_csr(dd, RCV_ERR_INFO,
RCV_ERR_INFO_RCV_EXCESS_BUFFER_OVERRUN_SMASK);
#define _HFI1_MAD_H
#include <rdma/ib_pma.h>
-#define USE_PI_LED_ENABLE 1 /* use led enabled bit in struct
- * opa_port_states, if available */
+#define USE_PI_LED_ENABLE 1 /*
+ * use led enabled bit in struct
+ * opa_port_states, if available
+ */
#include <rdma/opa_smi.h>
#include <rdma/opa_port_info.h>
#ifndef PI_LED_ENABLE_SUP
struct msix_entry *msix_entry;
int i;
- /* We can't pass hfi1_msix_entry array to msix_setup
+ /*
+ * We can't pass hfi1_msix_entry array to msix_setup
* so use a dummy msix_entry array and copy the allocated
- * irq back to the hfi1_msix_entry array. */
+ * irq back to the hfi1_msix_entry array.
+ */
msix_entry = kmalloc_array(nvec, sizeof(*msix_entry), GFP_KERNEL);
if (!msix_entry) {
ret = -ENOMEM;
/* memory pool information, used when calculating final sizes */
struct mem_pool_info {
- int centipercent; /* 100th of 1% of memory to use, -1 if blocks
- already set */
+ int centipercent; /*
+ * 100th of 1% of memory to use, -1 if blocks
+ * already set
+ */
int count; /* count of contexts in the pool */
int blocks; /* block size of the pool */
int size; /* context size, in blocks */
next = head + 1;
if (next >= sc->sr_size)
next = 0;
- /* update the head - must be last! - the releaser can look at fields
- in pbuf once we move the head */
+ /*
+ * update the head - must be last! - the releaser can look at fields
+ * in pbuf once we move the head
+ */
smp_wmb();
sc->sr_head = next;
spin_unlock_irqrestore(&sc->alloc_lock, flags);
dend = dest + ((count >> 1) * sizeof(u64));
if (dend < send) {
- /* all QWORD data is within the SOP block, does *not*
- reach the end of the SOP block */
+ /*
+ * all QWORD data is within the SOP block, does *not*
+ * reach the end of the SOP block
+ */
while (dest < dend) {
writeq(*(u64 *)from, dest);
writeq(val.val64, dest);
dest += sizeof(u64);
}
- /* fill in rest of block, no need to check pbuf->end
- as we only wrap on a block boundary */
+ /*
+ * fill in rest of block, no need to check pbuf->end
+ * as we only wrap on a block boundary
+ */
while (((unsigned long)dest & PIO_BLOCK_MASK) != 0) {
writeq(0, dest);
dest += sizeof(u64);
dend = dest + ((nbytes >> 3) * sizeof(u64));
if (dend < send) {
- /* all QWORD data is within the SOP block, does *not*
- reach the end of the SOP block */
+ /*
+ * all QWORD data is within the SOP block, does *not*
+ * reach the end of the SOP block
+ */
while (dest < dend) {
writeq(*(u64 *)from, dest);
void __iomem *send; /* SOP end */
void __iomem *xend;
- /* calculate the end of data or end of block, whichever
- comes first */
+ /*
+ * calculate the end of data or end of block, whichever
+ * comes first
+ */
send = pbuf->start + PIO_BLOCK_SIZE;
xend = send < dend ? send : dend;
void __iomem *send; /* SOP end */
void __iomem *xend;
- /* calculate the end of data or end of block, whichever
- comes first */
+ /*
+ * calculate the end of data or end of block, whichever
+ * comes first
+ */
send = pbuf->start + PIO_BLOCK_SIZE;
xend = send < dend ? send : dend;
*/
/*
- *=====================================================
+ * =====================================================
* System table encodings
- *====================================================
+ * =====================================================
*/
#define PLATFORM_CONFIG_MAGIC_NUM 0x3d4f5041
#define PLATFORM_CONFIG_MAGIC_NUMBER_LEN 4
};
/*
- *=====================================================
+ * ====================================================
* Port table encodings
- *====================================================
+ * ====================================================
*/
enum platform_config_port_type_encoding {
PORT_TYPE_UNKNOWN,
* of link up, then we need to start up.
* This can happen when hw down is requested while
* bringing the link up with traffic active on
- * 7220, e.g. */
+ * 7220, e.g.
+ */
ss->go_s99_running = 1;
/* fall through and start dma engine */
case sdma_event_e10_go_hw_start:
unsigned npages;
/* array of pinned pages for this vector */
struct page **pages;
- /* offset into the virtual address space of the vector at
- * which we last left off. */
+ /*
+ * offset into the virtual address space of the vector at
+ * which we last left off.
+ */
u64 offset;
};
}
req->koffset = le32_to_cpu(req->hdr.kdeth.swdata[6]);
- /* Calculate the initial TID offset based on the values of
- KDETH.OFFSET and KDETH.OM that are passed in. */
+ /*
+ * Calculate the initial TID offset based on the values of
+ * KDETH.OFFSET and KDETH.OM that are passed in.
+ */
req->tidoffset = KDETH_GET(req->hdr.kdeth.ver_tid_offset, OFFSET) *
(KDETH_GET(req->hdr.kdeth.ver_tid_offset, OM) ?
KDETH_OM_LARGE : KDETH_OM_SMALL);
} else if (req_opcode(req->info.ctrl) == EXPECTED) {
u32 tidlen = EXP_TID_GET(req->tids[req->tididx], LEN) *
PAGE_SIZE;
- /* Get the data length based on the remaining space in the
- * TID pair. */
+ /*
+ * Get the data length based on the remaining space in the
+ * TID pair.
+ */
len = min(tidlen - req->tidoffset, (u32)req->info.fragsize);
/* If we've filled up the TID pair, move to the next one. */
if (unlikely(!len) && ++req->tididx < req->n_tids &&
req->tidoffset = 0;
len = min_t(u32, tidlen, req->info.fragsize);
}
- /* Since the TID pairs map entire pages, make sure that we
+ /*
+ * Since the TID pairs map entire pages, make sure that we
* are not going to try to send more data that we have
- * remaining. */
+ * remaining.
+ */
len = min(len, req->data_len - req->sent);
} else
len = min(req->data_len - req->sent, (u32)req->info.fragsize);
req->sent += data_sent;
if (req->data_len) {
tx->iovecs[tx->idx].vec->offset += iov_offset;
- /* If we've reached the end of the io vector, mark it
- * so the callback can unpin the pages and free it. */
+ /*
+ * If we've reached the end of the io vector, mark it
+ * so the callback can unpin the pages and free it.
+ */
if (tx->iovecs[tx->idx].vec->offset ==
tx->iovecs[tx->idx].vec->iov.iov_len)
tx->iovecs[tx->idx].flags |=
if ((req->tidoffset) == (EXP_TID_GET(tidval, LEN) *
PAGE_SIZE)) {
req->tidoffset = 0;
- /* Since we don't copy all the TIDs, all at once,
- * we have to check again. */
+ /*
+ * Since we don't copy all the TIDs, all at once,
+ * we have to check again.
+ */
if (++req->tididx > req->n_tids - 1 ||
!req->tids[req->tididx]) {
return -EINVAL;
if ((req->tidoffset) == (EXP_TID_GET(tidval, LEN) *
PAGE_SIZE)) {
req->tidoffset = 0;
- /* Since we don't copy all the TIDs, all at once,
- * we have to check again. */
+ /*
+ * Since we don't copy all the TIDs, all at once,
+ * we have to check again.
+ */
if (++req->tididx > req->n_tids - 1 ||
!req->tids[req->tididx]) {
return -EINVAL;
projects / karo-tx-linux.git / commitdiff