Commit 12b276fb authored by Kumar Sanghvi's avatar Kumar Sanghvi Committed by David S. Miller
Browse files

cxgb4: add support to create hash filters



Add support to create hash (exact-match) filters based on the value
of 'hash' field in ch_filter_specification.

Allocate SMT/L2T entries if DMAC-rewrite/SMAC-rewrite is requested.

Allocate CLIP entry in case of IPv6 filter.

Use cpl_act_open_req[6] to send hash filter create request to hw.
Also, the filter tuple is calculated as part of sending this request.

Hash-filter reply is processed on getting cpl_act_open_rpl.
In case of success, various bits/fields in filter-tcb are set per
filter requirement, such as enabling filter hitcnts, and/or various
header rewrite operations, such as VLAN-rewrite, NAT or
(L3/L4)-rewrite, and SMAC/DMAC-rewrite. In case of failure, clear the
filter entry and release any hw resources occupied by it.

The patch also moves the functions set_tcb_field, set_tcb_tflag and
configure_filter_smac towards beginning of file.
Signed-off-by: default avatarKumar Sanghvi <kumaras@chelsio.com>
Signed-off-by: default avatarRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5c31254e
......@@ -1050,6 +1050,7 @@ struct ch_filter_specification {
* matching that doesn't exist as a (value, mask) tuple.
*/
uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */
u32 hash:1; /* 0 => wild-card, 1 => exact-match */
/* Packet dispatch information. Ingress packets which match the
* filter rules will be dropped, passed to the host or switched back
......@@ -1107,7 +1108,14 @@ enum {
};
enum {
NAT_MODE_ALL = 7, /* NAT on entire 4-tuple */
NAT_MODE_NONE = 0, /* No NAT performed */
NAT_MODE_DIP, /* NAT on Dst IP */
NAT_MODE_DIP_DP, /* NAT on Dst IP, Dst Port */
NAT_MODE_DIP_DP_SIP, /* NAT on Dst IP, Dst Port and Src IP */
NAT_MODE_DIP_DP_SP, /* NAT on Dst IP, Dst Port and Src Port */
NAT_MODE_SIP_SP, /* NAT on Src IP and Src Port */
NAT_MODE_DIP_SIP_SP, /* NAT on Dst IP, Src IP and Src Port */
NAT_MODE_ALL /* NAT on entire 4-tuple */
};
/* Host shadow copy of ingress filter entry. This is in host native format
......
......@@ -35,6 +35,8 @@
#include "cxgb4.h"
#include "t4_regs.h"
#include "t4_tcb.h"
#include "t4_values.h"
#include "clip_tbl.h"
#include "l2t.h"
#include "smt.h"
#include "t4fw_api.h"
......@@ -50,6 +52,141 @@ static inline bool unsupported(u32 conf, u32 conf_mask, u32 val, u32 mask)
return !(conf & conf_mask) && is_field_set(val, mask);
}
static int set_tcb_field(struct adapter *adap, struct filter_entry *f,
unsigned int ftid, u16 word, u64 mask, u64 val,
int no_reply)
{
struct cpl_set_tcb_field *req;
struct sk_buff *skb;
skb = alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_ATOMIC);
if (!skb)
return -ENOMEM;
req = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*req));
memset(req, 0, sizeof(*req));
INIT_TP_WR_CPL(req, CPL_SET_TCB_FIELD, ftid);
req->reply_ctrl = htons(REPLY_CHAN_V(0) |
QUEUENO_V(adap->sge.fw_evtq.abs_id) |
NO_REPLY_V(no_reply));
req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(ftid));
req->mask = cpu_to_be64(mask);
req->val = cpu_to_be64(val);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3);
t4_ofld_send(adap, skb);
return 0;
}
/* Set one of the t_flags bits in the TCB.
*/
static int set_tcb_tflag(struct adapter *adap, struct filter_entry *f,
unsigned int ftid, unsigned int bit_pos,
unsigned int val, int no_reply)
{
return set_tcb_field(adap, f, ftid, TCB_T_FLAGS_W, 1ULL << bit_pos,
(unsigned long long)val << bit_pos, no_reply);
}
static int configure_filter_smac(struct adapter *adap, struct filter_entry *f)
{
int err;
/* do a set-tcb for smac-sel and CWR bit.. */
err = set_tcb_tflag(adap, f, f->tid, TF_CCTRL_CWR_S, 1, 1);
if (err)
goto smac_err;
err = set_tcb_field(adap, f, f->tid, TCB_SMAC_SEL_W,
TCB_SMAC_SEL_V(TCB_SMAC_SEL_M),
TCB_SMAC_SEL_V(f->smt->idx), 1);
if (!err)
return 0;
smac_err:
dev_err(adap->pdev_dev, "filter %u smac config failed with error %u\n",
f->tid, err);
return err;
}
static void set_nat_params(struct adapter *adap, struct filter_entry *f,
unsigned int tid, bool dip, bool sip, bool dp,
bool sp)
{
if (dip) {
if (f->fs.type) {
set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W,
WORD_MASK, f->fs.nat_lip[15] |
f->fs.nat_lip[14] << 8 |
f->fs.nat_lip[13] << 16 |
f->fs.nat_lip[12] << 24, 1);
set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 1,
WORD_MASK, f->fs.nat_lip[11] |
f->fs.nat_lip[10] << 8 |
f->fs.nat_lip[9] << 16 |
f->fs.nat_lip[8] << 24, 1);
set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 2,
WORD_MASK, f->fs.nat_lip[7] |
f->fs.nat_lip[6] << 8 |
f->fs.nat_lip[5] << 16 |
f->fs.nat_lip[4] << 24, 1);
set_tcb_field(adap, f, tid, TCB_SND_UNA_RAW_W + 3,
WORD_MASK, f->fs.nat_lip[3] |
f->fs.nat_lip[2] << 8 |
f->fs.nat_lip[1] << 16 |
f->fs.nat_lip[0] << 24, 1);
} else {
set_tcb_field(adap, f, tid, TCB_RX_FRAG3_LEN_RAW_W,
WORD_MASK, f->fs.nat_lip[3] |
f->fs.nat_lip[2] << 8 |
f->fs.nat_lip[1] << 16 |
f->fs.nat_lip[0] << 24, 1);
}
}
if (sip) {
if (f->fs.type) {
set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W,
WORD_MASK, f->fs.nat_fip[15] |
f->fs.nat_fip[14] << 8 |
f->fs.nat_fip[13] << 16 |
f->fs.nat_fip[12] << 24, 1);
set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 1,
WORD_MASK, f->fs.nat_fip[11] |
f->fs.nat_fip[10] << 8 |
f->fs.nat_fip[9] << 16 |
f->fs.nat_fip[8] << 24, 1);
set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 2,
WORD_MASK, f->fs.nat_fip[7] |
f->fs.nat_fip[6] << 8 |
f->fs.nat_fip[5] << 16 |
f->fs.nat_fip[4] << 24, 1);
set_tcb_field(adap, f, tid, TCB_RX_FRAG2_PTR_RAW_W + 3,
WORD_MASK, f->fs.nat_fip[3] |
f->fs.nat_fip[2] << 8 |
f->fs.nat_fip[1] << 16 |
f->fs.nat_fip[0] << 24, 1);
} else {
set_tcb_field(adap, f, tid,
TCB_RX_FRAG3_START_IDX_OFFSET_RAW_W,
WORD_MASK, f->fs.nat_fip[3] |
f->fs.nat_fip[2] << 8 |
f->fs.nat_fip[1] << 16 |
f->fs.nat_fip[0] << 24, 1);
}
}
set_tcb_field(adap, f, tid, TCB_PDU_HDR_LEN_W, WORD_MASK,
(dp ? f->fs.nat_lport : 0) |
(sp ? f->fs.nat_fport << 16 : 0), 1);
}
/* Validate filter spec against configuration done on the card. */
static int validate_filter(struct net_device *dev,
struct ch_filter_specification *fs)
......@@ -484,10 +621,8 @@ int delete_filter(struct adapter *adapter, unsigned int fidx)
void clear_filter(struct adapter *adap, struct filter_entry *f)
{
/* If the new or old filter have loopback rewriteing rules then we'll
* need to free any existing Layer Two Table (L2T) entries of the old
* filter rule. The firmware will handle freeing up any Source MAC
* Table (SMT) entries used for rewriting Source MAC Addresses in
* loopback rules.
* need to free any existing L2T, SMT, CLIP entries of filter
* rule.
*/
if (f->l2t)
cxgb4_l2t_release(f->l2t);
......@@ -495,6 +630,9 @@ void clear_filter(struct adapter *adap, struct filter_entry *f)
if (f->smt)
cxgb4_smt_release(f->smt);
if (f->fs.hash && f->fs.type)
cxgb4_clip_release(f->dev, (const u32 *)&f->fs.val.lip, 1);
/* The zeroing of the filter rule below clears the filter valid,
* pending, locked flags, l2t pointer, etc. so it's all we need for
* this operation.
......@@ -564,6 +702,269 @@ static void fill_default_mask(struct ch_filter_specification *fs)
fs->mask.fport = ~0;
}
static u64 hash_filter_ntuple(struct ch_filter_specification *fs,
struct net_device *dev)
{
struct adapter *adap = netdev2adap(dev);
struct tp_params *tp = &adap->params.tp;
u64 ntuple = 0;
/* Initialize each of the fields which we care about which are present
* in the Compressed Filter Tuple.
*/
if (tp->vlan_shift >= 0 && fs->mask.ivlan)
ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
if (tp->port_shift >= 0 && fs->mask.iport)
ntuple |= (u64)fs->val.iport << tp->port_shift;
if (tp->protocol_shift >= 0) {
if (!fs->val.proto)
ntuple |= (u64)IPPROTO_TCP << tp->protocol_shift;
else
ntuple |= (u64)fs->val.proto << tp->protocol_shift;
}
if (tp->tos_shift >= 0 && fs->mask.tos)
ntuple |= (u64)(fs->val.tos) << tp->tos_shift;
if (tp->vnic_shift >= 0) {
if ((adap->params.tp.ingress_config & VNIC_F) &&
fs->mask.pfvf_vld)
ntuple |= (u64)((fs->val.pfvf_vld << 16) |
(fs->val.pf << 13) |
(fs->val.vf)) << tp->vnic_shift;
else
ntuple |= (u64)((fs->val.ovlan_vld << 16) |
(fs->val.ovlan)) << tp->vnic_shift;
}
if (tp->macmatch_shift >= 0 && fs->mask.macidx)
ntuple |= (u64)(fs->val.macidx) << tp->macmatch_shift;
if (tp->ethertype_shift >= 0 && fs->mask.ethtype)
ntuple |= (u64)(fs->val.ethtype) << tp->ethertype_shift;
if (tp->matchtype_shift >= 0 && fs->mask.matchtype)
ntuple |= (u64)(fs->val.matchtype) << tp->matchtype_shift;
if (tp->frag_shift >= 0 && fs->mask.frag)
ntuple |= (u64)(fs->val.frag) << tp->frag_shift;
if (tp->fcoe_shift >= 0 && fs->mask.fcoe)
ntuple |= (u64)(fs->val.fcoe) << tp->fcoe_shift;
return ntuple;
}
static void mk_act_open_req6(struct filter_entry *f, struct sk_buff *skb,
unsigned int qid_filterid, struct adapter *adap)
{
struct cpl_t6_act_open_req6 *t6req = NULL;
struct cpl_act_open_req6 *req = NULL;
t6req = (struct cpl_t6_act_open_req6 *)__skb_put(skb, sizeof(*t6req));
INIT_TP_WR(t6req, 0);
req = (struct cpl_act_open_req6 *)t6req;
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ACT_OPEN_REQ6, qid_filterid));
req->local_port = cpu_to_be16(f->fs.val.lport);
req->peer_port = cpu_to_be16(f->fs.val.fport);
req->local_ip_hi = *(__be64 *)(&f->fs.val.lip);
req->local_ip_lo = *(((__be64 *)&f->fs.val.lip) + 1);
req->peer_ip_hi = *(__be64 *)(&f->fs.val.fip);
req->peer_ip_lo = *(((__be64 *)&f->fs.val.fip) + 1);
req->opt0 = cpu_to_be64(NAGLE_V(f->fs.newvlan == VLAN_REMOVE ||
f->fs.newvlan == VLAN_REWRITE) |
DELACK_V(f->fs.hitcnts) |
L2T_IDX_V(f->l2t ? f->l2t->idx : 0) |
SMAC_SEL_V((cxgb4_port_viid(f->dev) &
0x7F) << 1) |
TX_CHAN_V(f->fs.eport) |
NO_CONG_V(f->fs.rpttid) |
ULP_MODE_V(f->fs.nat_mode ?
ULP_MODE_TCPDDP : ULP_MODE_NONE) |
TCAM_BYPASS_F | NON_OFFLOAD_F);
t6req->params = cpu_to_be64(FILTER_TUPLE_V(hash_filter_ntuple(&f->fs,
f->dev)));
t6req->opt2 = htonl(RSS_QUEUE_VALID_F |
RSS_QUEUE_V(f->fs.iq) |
TX_QUEUE_V(f->fs.nat_mode) |
T5_OPT_2_VALID_F |
RX_CHANNEL_F |
CONG_CNTRL_V((f->fs.action == FILTER_DROP) |
(f->fs.dirsteer << 1)) |
PACE_V((f->fs.maskhash) |
((f->fs.dirsteerhash) << 1)) |
CCTRL_ECN_V(f->fs.action == FILTER_SWITCH));
}
static void mk_act_open_req(struct filter_entry *f, struct sk_buff *skb,
unsigned int qid_filterid, struct adapter *adap)
{
struct cpl_t6_act_open_req *t6req = NULL;
struct cpl_act_open_req *req = NULL;
t6req = (struct cpl_t6_act_open_req *)__skb_put(skb, sizeof(*t6req));
INIT_TP_WR(t6req, 0);
req = (struct cpl_act_open_req *)t6req;
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_ACT_OPEN_REQ, qid_filterid));
req->local_port = cpu_to_be16(f->fs.val.lport);
req->peer_port = cpu_to_be16(f->fs.val.fport);
req->local_ip = f->fs.val.lip[0] | f->fs.val.lip[1] << 8 |
f->fs.val.lip[2] << 16 | f->fs.val.lip[3] << 24;
req->peer_ip = f->fs.val.fip[0] | f->fs.val.fip[1] << 8 |
f->fs.val.fip[2] << 16 | f->fs.val.fip[3] << 24;
req->opt0 = cpu_to_be64(NAGLE_V(f->fs.newvlan == VLAN_REMOVE ||
f->fs.newvlan == VLAN_REWRITE) |
DELACK_V(f->fs.hitcnts) |
L2T_IDX_V(f->l2t ? f->l2t->idx : 0) |
SMAC_SEL_V((cxgb4_port_viid(f->dev) &
0x7F) << 1) |
TX_CHAN_V(f->fs.eport) |
NO_CONG_V(f->fs.rpttid) |
ULP_MODE_V(f->fs.nat_mode ?
ULP_MODE_TCPDDP : ULP_MODE_NONE) |
TCAM_BYPASS_F | NON_OFFLOAD_F);
t6req->params = cpu_to_be64(FILTER_TUPLE_V(hash_filter_ntuple(&f->fs,
f->dev)));
t6req->opt2 = htonl(RSS_QUEUE_VALID_F |
RSS_QUEUE_V(f->fs.iq) |
TX_QUEUE_V(f->fs.nat_mode) |
T5_OPT_2_VALID_F |
RX_CHANNEL_F |
CONG_CNTRL_V((f->fs.action == FILTER_DROP) |
(f->fs.dirsteer << 1)) |
PACE_V((f->fs.maskhash) |
((f->fs.dirsteerhash) << 1)) |
CCTRL_ECN_V(f->fs.action == FILTER_SWITCH));
}
static int cxgb4_set_hash_filter(struct net_device *dev,
struct ch_filter_specification *fs,
struct filter_ctx *ctx)
{
struct adapter *adapter = netdev2adap(dev);
struct tid_info *t = &adapter->tids;
struct filter_entry *f;
struct sk_buff *skb;
int iq, atid, size;
int ret = 0;
u32 iconf;
fill_default_mask(fs);
ret = validate_filter(dev, fs);
if (ret)
return ret;
iq = get_filter_steerq(dev, fs);
if (iq < 0)
return iq;
f = kzalloc(sizeof(*f), GFP_KERNEL);
if (!f)
return -ENOMEM;
f->fs = *fs;
f->ctx = ctx;
f->dev = dev;
f->fs.iq = iq;
/* If the new filter requires loopback Destination MAC and/or VLAN
* rewriting then we need to allocate a Layer 2 Table (L2T) entry for
* the filter.
*/
if (f->fs.newdmac || f->fs.newvlan) {
/* allocate L2T entry for new filter */
f->l2t = t4_l2t_alloc_switching(adapter, f->fs.vlan,
f->fs.eport, f->fs.dmac);
if (!f->l2t) {
ret = -ENOMEM;
goto out_err;
}
}
/* If the new filter requires loopback Source MAC rewriting then
* we need to allocate a SMT entry for the filter.
*/
if (f->fs.newsmac) {
f->smt = cxgb4_smt_alloc_switching(f->dev, f->fs.smac);
if (!f->smt) {
if (f->l2t) {
cxgb4_l2t_release(f->l2t);
f->l2t = NULL;
}
ret = -ENOMEM;
goto free_l2t;
}
}
atid = cxgb4_alloc_atid(t, f);
if (atid < 0)
goto free_smt;
iconf = adapter->params.tp.ingress_config;
if (iconf & VNIC_F) {
f->fs.val.ovlan = (fs->val.pf << 13) | fs->val.vf;
f->fs.mask.ovlan = (fs->mask.pf << 13) | fs->mask.vf;
f->fs.val.ovlan_vld = fs->val.pfvf_vld;
f->fs.mask.ovlan_vld = fs->mask.pfvf_vld;
}
size = sizeof(struct cpl_t6_act_open_req);
if (f->fs.type) {
ret = cxgb4_clip_get(f->dev, (const u32 *)&f->fs.val.lip, 1);
if (ret)
goto free_atid;
skb = alloc_skb(size, GFP_KERNEL);
if (!skb) {
ret = -ENOMEM;
goto free_clip;
}
mk_act_open_req6(f, skb,
((adapter->sge.fw_evtq.abs_id << 14) | atid),
adapter);
} else {
skb = alloc_skb(size, GFP_KERNEL);
if (!skb) {
ret = -ENOMEM;
goto free_atid;
}
mk_act_open_req(f, skb,
((adapter->sge.fw_evtq.abs_id << 14) | atid),
adapter);
}
f->pending = 1;
set_wr_txq(skb, CPL_PRIORITY_SETUP, f->fs.val.iport & 0x3);
t4_ofld_send(adapter, skb);
return 0;
free_clip:
cxgb4_clip_release(f->dev, (const u32 *)&f->fs.val.lip, 1);
free_atid:
cxgb4_free_atid(t, atid);
free_smt:
if (f->smt) {
cxgb4_smt_release(f->smt);
f->smt = NULL;
}
free_l2t:
if (f->l2t) {
cxgb4_l2t_release(f->l2t);
f->l2t = NULL;
}
out_err:
kfree(f);
return ret;
}
/* Check a Chelsio Filter Request for validity, convert it into our internal
* format and send it to the hardware. Return 0 on success, an error number
* otherwise. We attach any provided filter operation context to the internal
......@@ -580,6 +981,14 @@ int __cxgb4_set_filter(struct net_device *dev, int filter_id,
u32 iconf;
int iq, ret;
if (fs->hash) {
if (is_hashfilter(adapter))
return cxgb4_set_hash_filter(dev, fs, ctx);
netdev_err(dev, "%s: Exact-match filters only supported with Hash Filter configuration\n",
__func__);
return -EINVAL;
}
max_fidx = adapter->tids.nftids;
if (filter_id != (max_fidx + adapter->tids.nsftids - 1) &&
filter_id >= max_fidx)
......@@ -789,60 +1198,126 @@ int cxgb4_del_filter(struct net_device *dev, int filter_id)
return ret;
}
static int set_tcb_field(struct adapter *adap, struct filter_entry *f,
unsigned int ftid, u16 word, u64 mask, u64 val,
int no_reply)
static int configure_filter_tcb(struct adapter *adap, unsigned int tid,
struct filter_entry *f)
{
struct cpl_set_tcb_field *req;
struct sk_buff *skb;
skb = alloc_skb(sizeof(struct cpl_set_tcb_field), GFP_ATOMIC);
if (!skb)
return -ENOMEM;
req = (struct cpl_set_tcb_field *)__skb_put(skb, sizeof(*req));
memset(req, 0, sizeof(*req));
INIT_TP_WR_CPL(req, CPL_SET_TCB_FIELD, ftid);
req->reply_ctrl = htons(REPLY_CHAN_V(0) |
QUEUENO_V(adap->sge.fw_evtq.abs_id) |
NO_REPLY_V(no_reply));
req->word_cookie = htons(TCB_WORD_V(word) | TCB_COOKIE_V(ftid));
req->mask = cpu_to_be64(mask);
req->val = cpu_to_be64(val);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, f->fs.val.iport & 0x3);
t4_ofld_send(adap, skb);
if (f->fs.hitcnts)
set_tcb_field(adap, f, tid, TCB_TIMESTAMP_W,
TCB_TIMESTAMP_V(TCB_TIMESTAMP_M) |
TCB_RTT_TS_RECENT_AGE_V(TCB_RTT_TS_RECENT_AGE_M),
TCB_TIMESTAMP_V(0ULL) |
TCB_RTT_TS_RECENT_AGE_V(0ULL),
1);
if (f->fs.newdmac)
set_tcb_tflag(adap, f, tid, TF_CCTRL_ECE_S, 1,
1);
if (f->fs.newvlan == VLAN_INSERT ||
f->fs.newvlan == VLAN_REWRITE)
set_tcb_tflag(adap, f, tid, TF_CCTRL_RFR_S, 1,
1);
if (f->fs.newsmac)
configure_filter_smac(adap, f);
if (f->fs.nat_mode) {
switch (f->fs.nat_mode) {
case NAT_MODE_DIP:
set_nat_params(adap, f, tid, true, false, false, false);
break;
case NAT_MODE_DIP_DP:
set_nat_params(adap, f, tid, true, false, true, false);
break;
case NAT_MODE_DIP_DP_SIP:
set_nat_params(adap, f, tid, true, true, true, false);
break;
case NAT_MODE_DIP_DP_SP:
set_nat_params(adap, f, tid, true, false, true, true);
break;
case NAT_MODE_SIP_SP:
set_nat_params(adap, f, tid, false, true, false, true);
break;
case NAT_MODE_DIP_SIP_SP:
set_nat_params(adap, f, tid, true, true, false, true);
break;
case NAT_MODE_ALL:
set_nat_params(adap, f, tid, true, true, true, true);
break;
default:
pr_err("%s: Invalid NAT mode: %d\n",
__func__, f->fs.nat_mode);
return -EINVAL;
}
}
return 0;
}
/* Set one of the t_flags bits in the TCB.
*/
static int set_tcb_tflag(struct adapter *adap, struct filter_entry *f,
unsigned int ftid, unsigned int bit_pos,
unsigned int val, int no_reply)
void hash_filter_rpl(struct adapter *adap, const struct cpl_act_open_rpl *rpl)
{
return set_tcb_field(adap, f, ftid, TCB_T_FLAGS_W, 1ULL << bit_pos,
(unsigned long long)val << bit_pos, no_reply);
}
unsigned int ftid = TID_TID_G(AOPEN_ATID_G(ntohl(rpl->atid_status)));
unsigned int status = AOPEN_STATUS_G(ntohl(rpl->atid_status));