/*
- * Copyright (c) 2006-2007 Chelsio, Inc. All rights reserved.
+ * Copyright (c) 2006-2008 Chelsio, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
static LIST_HEAD(adapter_list);
static const unsigned int MAX_ATIDS = 64 * 1024;
-static const unsigned int ATID_BASE = 0x100000;
+static const unsigned int ATID_BASE = 0x10000;
static inline int offload_activated(struct t3cdev *tdev)
{
mutex_unlock(&cxgb3_db_lock);
}
+void cxgb3_err_notify(struct t3cdev *tdev, u32 status, u32 error)
+{
+ struct cxgb3_client *client;
+
+ mutex_lock(&cxgb3_db_lock);
+ list_for_each_entry(client, &client_list, client_list) {
+ if (client->err_handler)
+ client->err_handler(tdev, status, error);
+ }
+ mutex_unlock(&cxgb3_db_lock);
+}
+
static struct net_device *get_iff_from_mac(struct adapter *adapter,
const unsigned char *mac,
unsigned int vlan)
static int cxgb_ulp_iscsi_ctl(struct adapter *adapter, unsigned int req,
void *data)
{
+ int i;
int ret = 0;
+ unsigned int val = 0;
struct ulp_iscsi_info *uiip = data;
switch (req) {
uiip->llimit = t3_read_reg(adapter, A_ULPRX_ISCSI_LLIMIT);
uiip->ulimit = t3_read_reg(adapter, A_ULPRX_ISCSI_ULIMIT);
uiip->tagmask = t3_read_reg(adapter, A_ULPRX_ISCSI_TAGMASK);
+
+ val = t3_read_reg(adapter, A_ULPRX_ISCSI_PSZ);
+ for (i = 0; i < 4; i++, val >>= 8)
+ uiip->pgsz_factor[i] = val & 0xFF;
+
+ val = t3_read_reg(adapter, A_TP_PARA_REG7);
+ uiip->max_txsz =
+ uiip->max_rxsz = min((val >> S_PMMAXXFERLEN0)&M_PMMAXXFERLEN0,
+ (val >> S_PMMAXXFERLEN1)&M_PMMAXXFERLEN1);
/*
* On tx, the iscsi pdu has to be <= tx page size and has to
* fit into the Tx PM FIFO.
*/
- uiip->max_txsz = min(adapter->params.tp.tx_pg_size,
- t3_read_reg(adapter, A_PM1_TX_CFG) >> 17);
- /* on rx, the iscsi pdu has to be < rx page size and the
- whole pdu + cpl headers has to fit into one sge buffer */
- uiip->max_rxsz = min_t(unsigned int,
- adapter->params.tp.rx_pg_size,
- (adapter->sge.qs[0].fl[1].buf_size -
- sizeof(struct cpl_rx_data) * 2 -
- sizeof(struct cpl_rx_data_ddp)));
+ val = min(adapter->params.tp.tx_pg_size,
+ t3_read_reg(adapter, A_PM1_TX_CFG) >> 17);
+ uiip->max_txsz = min(val, uiip->max_txsz);
+
+ /* set MaxRxData to 16224 */
+ val = t3_read_reg(adapter, A_TP_PARA_REG2);
+ if ((val >> S_MAXRXDATA) != 0x3f60) {
+ val &= (M_RXCOALESCESIZE << S_RXCOALESCESIZE);
+ val |= V_MAXRXDATA(0x3f60);
+ printk(KERN_INFO
+ "%s, iscsi set MaxRxData to 16224 (0x%x).\n",
+ adapter->name, val);
+ t3_write_reg(adapter, A_TP_PARA_REG2, val);
+ }
+
+ /*
+ * on rx, the iscsi pdu has to be < rx page size and the
+ * the max rx data length programmed in TP
+ */
+ val = min(adapter->params.tp.rx_pg_size,
+ ((t3_read_reg(adapter, A_TP_PARA_REG2)) >>
+ S_MAXRXDATA) & M_MAXRXDATA);
+ uiip->max_rxsz = min(val, uiip->max_rxsz);
break;
case ULP_ISCSI_SET_PARAMS:
t3_write_reg(adapter, A_ULPRX_ISCSI_TAGMASK, uiip->tagmask);
+ /* program the ddp page sizes */
+ for (i = 0; i < 4; i++)
+ val |= (uiip->pgsz_factor[i] & 0xF) << (8 * i);
+ if (val && (val != t3_read_reg(adapter, A_ULPRX_ISCSI_PSZ))) {
+ printk(KERN_INFO
+ "%s, setting iscsi pgsz 0x%x, %u,%u,%u,%u.\n",
+ adapter->name, val, uiip->pgsz_factor[0],
+ uiip->pgsz_factor[1], uiip->pgsz_factor[2],
+ uiip->pgsz_factor[3]);
+ t3_write_reg(adapter, A_ULPRX_ISCSI_PSZ, val);
+ }
break;
default:
ret = -EOPNOTSUPP;
int ret = 0;
switch (req) {
- case RDMA_GET_PARAMS:{
- struct rdma_info *req = data;
+ case RDMA_GET_PARAMS: {
+ struct rdma_info *rdma = data;
struct pci_dev *pdev = adapter->pdev;
- req->udbell_physbase = pci_resource_start(pdev, 2);
- req->udbell_len = pci_resource_len(pdev, 2);
- req->tpt_base =
+ rdma->udbell_physbase = pci_resource_start(pdev, 2);
+ rdma->udbell_len = pci_resource_len(pdev, 2);
+ rdma->tpt_base =
t3_read_reg(adapter, A_ULPTX_TPT_LLIMIT);
- req->tpt_top = t3_read_reg(adapter, A_ULPTX_TPT_ULIMIT);
- req->pbl_base =
+ rdma->tpt_top = t3_read_reg(adapter, A_ULPTX_TPT_ULIMIT);
+ rdma->pbl_base =
t3_read_reg(adapter, A_ULPTX_PBL_LLIMIT);
- req->pbl_top = t3_read_reg(adapter, A_ULPTX_PBL_ULIMIT);
- req->rqt_base = t3_read_reg(adapter, A_ULPRX_RQ_LLIMIT);
- req->rqt_top = t3_read_reg(adapter, A_ULPRX_RQ_ULIMIT);
- req->kdb_addr = adapter->regs + A_SG_KDOORBELL;
- req->pdev = pdev;
+ rdma->pbl_top = t3_read_reg(adapter, A_ULPTX_PBL_ULIMIT);
+ rdma->rqt_base = t3_read_reg(adapter, A_ULPRX_RQ_LLIMIT);
+ rdma->rqt_top = t3_read_reg(adapter, A_ULPRX_RQ_ULIMIT);
+ rdma->kdb_addr = adapter->regs + A_SG_KDOORBELL;
+ rdma->pdev = pdev;
break;
}
case RDMA_CQ_OP:{
unsigned long flags;
- struct rdma_cq_op *req = data;
+ struct rdma_cq_op *rdma = data;
/* may be called in any context */
spin_lock_irqsave(&adapter->sge.reg_lock, flags);
- ret = t3_sge_cqcntxt_op(adapter, req->id, req->op,
- req->credits);
+ ret = t3_sge_cqcntxt_op(adapter, rdma->id, rdma->op,
+ rdma->credits);
spin_unlock_irqrestore(&adapter->sge.reg_lock, flags);
break;
}
break;
}
case RDMA_CQ_SETUP:{
- struct rdma_cq_setup *req = data;
+ struct rdma_cq_setup *rdma = data;
spin_lock_irq(&adapter->sge.reg_lock);
ret =
- t3_sge_init_cqcntxt(adapter, req->id,
- req->base_addr, req->size,
+ t3_sge_init_cqcntxt(adapter, rdma->id,
+ rdma->base_addr, rdma->size,
ASYNC_NOTIF_RSPQ,
- req->ovfl_mode, req->credits,
- req->credit_thres);
+ rdma->ovfl_mode, rdma->credits,
+ rdma->credit_thres);
spin_unlock_irq(&adapter->sge.reg_lock);
break;
}
spin_unlock_irq(&adapter->sge.reg_lock);
break;
case RDMA_CTRL_QP_SETUP:{
- struct rdma_ctrlqp_setup *req = data;
+ struct rdma_ctrlqp_setup *rdma = data;
spin_lock_irq(&adapter->sge.reg_lock);
ret = t3_sge_init_ecntxt(adapter, FW_RI_SGEEC_START, 0,
SGE_CNTXT_RDMA,
ASYNC_NOTIF_RSPQ,
- req->base_addr, req->size,
+ rdma->base_addr, rdma->size,
FW_RI_TID_START, 1, 0);
spin_unlock_irq(&adapter->sge.reg_lock);
break;
}
+ case RDMA_GET_MIB: {
+ spin_lock(&adapter->stats_lock);
+ t3_tp_get_mib_stats(adapter, (struct tp_mib_stats *)data);
+ spin_unlock(&adapter->stats_lock);
+ break;
+ }
default:
ret = -EOPNOTSUPP;
}
struct iff_mac *iffmacp;
struct ddp_params *ddpp;
struct adap_ports *ports;
+ struct ofld_page_info *rx_page_info;
+ struct tp_params *tp = &adapter->params.tp;
int i;
switch (req) {
case RDMA_CQ_DISABLE:
case RDMA_CTRL_QP_SETUP:
case RDMA_GET_MEM:
+ case RDMA_GET_MIB:
if (!offload_running(adapter))
return -EAGAIN;
return cxgb_rdma_ctl(adapter, req, data);
+ case GET_RX_PAGE_INFO:
+ rx_page_info = data;
+ rx_page_info->page_size = tp->rx_pg_size;
+ rx_page_info->num = tp->rx_num_pgs;
+ break;
+ case GET_ISCSI_IPV4ADDR: {
+ struct iscsi_ipv4addr *p = data;
+ struct port_info *pi = netdev_priv(p->dev);
+ p->ipv4addr = pi->iscsi_ipv4addr;
+ break;
+ }
+ case GET_EMBEDDED_INFO: {
+ struct ch_embedded_info *e = data;
+
+ spin_lock(&adapter->stats_lock);
+ t3_get_fw_version(adapter, &e->fw_vers);
+ t3_get_tp_version(adapter, &e->tp_vers);
+ spin_unlock(&adapter->stats_lock);
+ break;
+ }
default:
return -EOPNOTSUPP;
}
static int rx_offload_blackhole(struct t3cdev *dev, struct sk_buff **skbs,
int n)
{
- CH_ERR(tdev2adap(dev), "%d unexpected offload packets, first data %u\n",
- n, ntohl(*(__be32 *)skbs[0]->data));
while (n--)
dev_kfree_skb_any(skbs[n]);
return 0;
tid_release_task);
struct sk_buff *skb;
struct t3cdev *tdev = td->dev;
-
+
spin_lock_bh(&td->tid_release_lock);
while (td->tid_release_list) {
spin_unlock_bh(&td->tid_release_lock);
skb = alloc_skb(sizeof(struct cpl_tid_release),
- GFP_KERNEL | __GFP_NOFAIL);
+ GFP_KERNEL);
+ if (!skb)
+ skb = td->nofail_skb;
+ if (!skb) {
+ spin_lock_bh(&td->tid_release_lock);
+ p->ctx = (void *)td->tid_release_list;
+ td->tid_release_list = (struct t3c_tid_entry *)p;
+ break;
+ }
mk_tid_release(skb, p - td->tid_maps.tid_tab);
cxgb3_ofld_send(tdev, skb);
p->ctx = NULL;
+ if (skb == td->nofail_skb)
+ td->nofail_skb =
+ alloc_skb(sizeof(struct cpl_tid_release),
+ GFP_KERNEL);
spin_lock_bh(&td->tid_release_lock);
}
+ td->release_list_incomplete = (td->tid_release_list == NULL) ? 0 : 1;
spin_unlock_bh(&td->tid_release_lock);
+
+ if (!td->nofail_skb)
+ td->nofail_skb =
+ alloc_skb(sizeof(struct cpl_tid_release),
+ GFP_KERNEL);
}
/* use ctx as a next pointer in the tid release list */
p->ctx = (void *)td->tid_release_list;
p->client = NULL;
td->tid_release_list = p;
- if (!p->ctx)
+ if (!p->ctx || td->release_list_incomplete)
schedule_work(&td->tid_release_task);
spin_unlock_bh(&td->tid_release_lock);
}
EXPORT_SYMBOL(cxgb3_alloc_stid);
+/* Get the t3cdev associated with a net_device */
+struct t3cdev *dev2t3cdev(struct net_device *dev)
+{
+ const struct port_info *pi = netdev_priv(dev);
+
+ return (struct t3cdev *)pi->adapter;
+}
+
+EXPORT_SYMBOL(dev2t3cdev);
+
static int do_smt_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
{
struct cpl_smt_write_rpl *rpl = cplhdr(skb);
return CPL_RET_BUF_DONE;
}
+static int do_rte_write_rpl(struct t3cdev *dev, struct sk_buff *skb)
+{
+ struct cpl_rte_write_rpl *rpl = cplhdr(skb);
+
+ if (rpl->status != CPL_ERR_NONE)
+ printk(KERN_ERR
+ "Unexpected RTE_WRITE_RPL status %u for entry %u\n",
+ rpl->status, GET_TID(rpl));
+
+ return CPL_RET_BUF_DONE;
+}
+
static int do_act_open_rpl(struct t3cdev *dev, struct sk_buff *skb)
{
struct cpl_act_open_rpl *rpl = cplhdr(skb);
{
struct cpl_pass_accept_req *req = cplhdr(skb);
unsigned int stid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+ struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+ unsigned int tid = GET_TID(req);
- t3c_tid = lookup_stid(&(T3C_DATA(dev))->tid_maps, stid);
- if (t3c_tid->ctx && t3c_tid->client->handlers &&
+ if (unlikely(tid >= t->ntids)) {
+ printk("%s: passive open TID %u too large\n",
+ dev->name, tid);
+ t3_fatal_err(tdev2adap(dev));
+ return CPL_RET_BUF_DONE;
+ }
+
+ t3c_tid = lookup_stid(t, stid);
+ if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]) {
return t3c_tid->client->handlers[CPL_PASS_ACCEPT_REQ]
(dev, skb, t3c_tid->ctx);
* the buffer.
*/
static struct sk_buff *cxgb3_get_cpl_reply_skb(struct sk_buff *skb, size_t len,
- int gfp)
+ gfp_t gfp)
{
if (likely(!skb_cloned(skb))) {
BUG_ON(skb->len < len);
{
struct cpl_act_establish *req = cplhdr(skb);
unsigned int atid = G_PASS_OPEN_TID(ntohl(req->tos_tid));
+ struct tid_info *t = &(T3C_DATA(dev))->tid_maps;
struct t3c_tid_entry *t3c_tid;
+ unsigned int tid = GET_TID(req);
- t3c_tid = lookup_atid(&(T3C_DATA(dev))->tid_maps, atid);
+ if (unlikely(tid >= t->ntids)) {
+ printk("%s: active establish TID %u too large\n",
+ dev->name, tid);
+ t3_fatal_err(tdev2adap(dev));
+ return CPL_RET_BUF_DONE;
+ }
+
+ t3c_tid = lookup_atid(t, atid);
if (t3c_tid && t3c_tid->ctx && t3c_tid->client->handlers &&
t3c_tid->client->handlers[CPL_ACT_ESTABLISH]) {
return t3c_tid->client->handlers[CPL_ACT_ESTABLISH]
(dev, skb, t3c_tid->ctx);
} else {
printk(KERN_ERR "%s: received clientless CPL command 0x%x\n",
- dev->name, CPL_PASS_ACCEPT_REQ);
+ dev->name, CPL_ACT_ESTABLISH);
return CPL_RET_BUF_DONE | CPL_RET_BAD_MSG;
}
}
skb->protocol = htons(0xffff);
skb->dev = dev->lldev;
skb_pull(skb, sizeof(*p));
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
netif_receive_skb(skb);
return 0;
}
+/*
+ * That skb would better have come from process_responses() where we abuse
+ * ->priority and ->csum to carry our data. NB: if we get to per-arch
+ * ->csum, the things might get really interesting here.
+ */
+
+static inline u32 get_hwtid(struct sk_buff *skb)
+{
+ return ntohl((__force __be32)skb->priority) >> 8 & 0xfffff;
+}
+
+static inline u32 get_opcode(struct sk_buff *skb)
+{
+ return G_OPCODE(ntohl((__force __be32)skb->csum));
+}
+
static int do_term(struct t3cdev *dev, struct sk_buff *skb)
{
- unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xfffff;
- unsigned int opcode = G_OPCODE(ntohl(skb->csum));
+ unsigned int hwtid = get_hwtid(skb);
+ unsigned int opcode = get_opcode(skb);
struct t3c_tid_entry *t3c_tid;
t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
{
while (n--) {
struct sk_buff *skb = *skbs++;
- unsigned int opcode = G_OPCODE(ntohl(skb->csum));
+ unsigned int opcode = get_opcode(skb);
int ret = cpl_handlers[opcode] (dev, skb);
#if VALIDATE_TID
struct net_device *dev = neigh->dev;
if (dev && (is_offloading(dev))) {
- struct t3cdev *tdev = T3CDEV(dev);
+ struct t3cdev *tdev = dev2t3cdev(dev);
BUG_ON(!tdev);
t3_l2t_update(tdev, neigh);
skb = alloc_skb(sizeof(*req), GFP_ATOMIC);
if (!skb) {
- printk(KERN_ERR "%s: cannot allocate skb!\n", __FUNCTION__);
+ printk(KERN_ERR "%s: cannot allocate skb!\n", __func__);
return;
}
skb->priority = CPL_PRIORITY_CONTROL;
if (!is_offloading(olddev))
return;
if (!is_offloading(newdev)) {
- printk(KERN_WARNING "%s: Redirect to non-offload"
- "device ignored.\n", __FUNCTION__);
+ printk(KERN_WARNING "%s: Redirect to non-offload "
+ "device ignored.\n", __func__);
return;
}
- tdev = T3CDEV(olddev);
+ tdev = dev2t3cdev(olddev);
BUG_ON(!tdev);
- if (tdev != T3CDEV(newdev)) {
+ if (tdev != dev2t3cdev(newdev)) {
printk(KERN_WARNING "%s: Redirect to different "
- "offload device ignored.\n", __FUNCTION__);
+ "offload device ignored.\n", __func__);
return;
}
e = t3_l2t_get(tdev, new->neighbour, newdev);
if (!e) {
printk(KERN_ERR "%s: couldn't allocate new l2t entry!\n",
- __FUNCTION__);
+ __func__);
return;
}
*/
void cxgb_free_mem(void *addr)
{
- unsigned long p = (unsigned long)addr;
-
- if (p >= VMALLOC_START && p < VMALLOC_END)
+ if (is_vmalloc_addr(addr))
vfree(addr);
else
kfree(addr);
if (list_empty(&adapter_list))
register_netevent_notifier(&nb);
+ t->nofail_skb = alloc_skb(sizeof(struct cpl_tid_release), GFP_KERNEL);
+ t->release_list_incomplete = 0;
+
add_adapter(adapter);
return 0;
T3C_DATA(tdev) = NULL;
t3_free_l2t(L2DATA(tdev));
L2DATA(tdev) = NULL;
+ if (t->nofail_skb)
+ kfree_skb(t->nofail_skb);
kfree(t);
}
mutex_unlock(&cxgb3_db_lock);
}
+static inline int adap2type(struct adapter *adapter)
+{
+ int type = 0;
+
+ switch (adapter->params.rev) {
+ case T3_REV_A:
+ type = T3A;
+ break;
+ case T3_REV_B:
+ case T3_REV_B2:
+ type = T3B;
+ break;
+ case T3_REV_C:
+ type = T3C;
+ break;
+ }
+ return type;
+}
+
void __devinit cxgb3_adapter_ofld(struct adapter *adapter)
{
struct t3cdev *tdev = &adapter->tdev;
cxgb3_set_dummy_ops(tdev);
tdev->send = t3_offload_tx;
tdev->ctl = cxgb_offload_ctl;
- tdev->type = adapter->params.rev == 0 ? T3A : T3B;
+ tdev->type = adap2type(adapter);
register_tdev(tdev);
}
t3_register_cpl_handler(CPL_SMT_WRITE_RPL, do_smt_write_rpl);
t3_register_cpl_handler(CPL_L2T_WRITE_RPL, do_l2t_write_rpl);
+ t3_register_cpl_handler(CPL_RTE_WRITE_RPL, do_rte_write_rpl);
t3_register_cpl_handler(CPL_PASS_OPEN_RPL, do_stid_rpl);
t3_register_cpl_handler(CPL_CLOSE_LISTSRV_RPL, do_stid_rpl);
t3_register_cpl_handler(CPL_PASS_ACCEPT_REQ, do_cr);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff