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path: root/drivers/scsi/fnic/fnic_fcs.c
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Diffstat (limited to 'drivers/scsi/fnic/fnic_fcs.c')
-rw-r--r--drivers/scsi/fnic/fnic_fcs.c853
1 files changed, 119 insertions, 734 deletions
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index 70a5cbf6035e..1db689e98d88 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -14,28 +14,20 @@
#include <linux/workqueue.h>
#include <scsi/fc/fc_fip.h>
#include <scsi/fc/fc_els.h>
-#include <scsi/fc/fc_fcoe.h>
#include <scsi/fc_frame.h>
#include <scsi/libfc.h>
#include <scsi/scsi_transport_fc.h>
#include "fnic_io.h"
#include "fnic.h"
-#include "fnic_fip.h"
#include "fnic_fdls.h"
#include "fdls_fc.h"
#include "cq_enet_desc.h"
#include "cq_exch_desc.h"
+#include "fip.h"
-static u8 fcoe_all_fcfs[ETH_ALEN] = FIP_ALL_FCF_MACS;
-struct workqueue_struct *fnic_fip_queue;
+extern struct workqueue_struct *fnic_fip_queue;
struct workqueue_struct *fnic_event_queue;
-static void fnic_set_eth_mode(struct fnic *);
-static void fnic_fcoe_start_fcf_disc(struct fnic *fnic);
-static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *);
-static int fnic_fcoe_vlan_check(struct fnic *fnic, u16 flag);
-static int fnic_fcoe_handle_fip_frame(struct fnic *fnic, struct sk_buff *skb);
-
static uint8_t FCOE_ALL_FCF_MAC[6] = FC_FCOE_FLOGI_MAC;
/*
@@ -254,11 +246,6 @@ void fnic_handle_link(struct work_struct *work)
fnic->lport->host->host_no, FNIC_FC_LE,
"Link Status: UP_DOWN",
strlen("Link Status: UP_DOWN"));
- if (fnic->config.flags & VFCF_FIP_CAPABLE) {
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "deleting fip-timer during link-down\n");
- del_timer_sync(&fnic->fip_timer);
- }
fcoe_ctlr_link_down(&fnic->ctlr);
}
@@ -301,496 +288,70 @@ void fnic_handle_frame(struct work_struct *work)
}
}
-void fnic_fcoe_evlist_free(struct fnic *fnic)
-{
- struct fnic_event *fevt = NULL;
- struct fnic_event *next = NULL;
- unsigned long flags;
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (list_empty(&fnic->evlist)) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
-
- list_for_each_entry_safe(fevt, next, &fnic->evlist, list) {
- list_del(&fevt->list);
- kfree(fevt);
- }
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-}
-
-void fnic_handle_event(struct work_struct *work)
+void fnic_handle_fip_frame(struct work_struct *work)
{
- struct fnic *fnic = container_of(work, struct fnic, event_work);
- struct fnic_event *fevt = NULL;
- struct fnic_event *next = NULL;
- unsigned long flags;
+ struct fnic_frame_list *cur_frame, *next;
+ struct fnic *fnic = container_of(work, struct fnic, fip_frame_work);
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (list_empty(&fnic->evlist)) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "Processing FIP frame\n");
- list_for_each_entry_safe(fevt, next, &fnic->evlist, list) {
+ spin_lock_irqsave(&fnic->fnic_lock, fnic->lock_flags);
+ list_for_each_entry_safe(cur_frame, next, &fnic->fip_frame_queue,
+ links) {
if (fnic->stop_rx_link_events) {
- list_del(&fevt->list);
- kfree(fevt);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ list_del(&cur_frame->links);
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
+ kfree(cur_frame->fp);
+ kfree(cur_frame);
return;
}
+
/*
* If we're in a transitional state, just re-queue and return.
* The queue will be serviced when we get to a stable state.
*/
if (fnic->state != FNIC_IN_FC_MODE &&
- fnic->state != FNIC_IN_ETH_MODE) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ fnic->state != FNIC_IN_ETH_MODE) {
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
return;
}
- list_del(&fevt->list);
- switch (fevt->event) {
- case FNIC_EVT_START_VLAN_DISC:
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- fnic_fcoe_send_vlan_req(fnic);
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- break;
- case FNIC_EVT_START_FCF_DISC:
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Start FCF Discovery\n");
- fnic_fcoe_start_fcf_disc(fnic);
- break;
- default:
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "Unknown event 0x%x\n", fevt->event);
- break;
- }
- kfree(fevt);
- }
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-}
-
-/**
- * is_fnic_fip_flogi_reject() - Check if the Received FIP FLOGI frame is rejected
- * @fip: The FCoE controller that received the frame
- * @skb: The received FIP frame
- *
- * Returns non-zero if the frame is rejected with unsupported cmd with
- * insufficient resource els explanation.
- */
-static inline int is_fnic_fip_flogi_reject(struct fcoe_ctlr *fip,
- struct sk_buff *skb)
-{
- struct fc_lport *lport = fip->lp;
- struct fip_header *fiph;
- struct fc_frame_header *fh = NULL;
- struct fip_desc *desc;
- struct fip_encaps *els;
- u16 op;
- u8 els_op;
- u8 sub;
-
- size_t rlen;
- size_t dlen = 0;
-
- if (skb_linearize(skb))
- return 0;
-
- if (skb->len < sizeof(*fiph))
- return 0;
-
- fiph = (struct fip_header *)skb->data;
- op = ntohs(fiph->fip_op);
- sub = fiph->fip_subcode;
-
- if (op != FIP_OP_LS)
- return 0;
-
- if (sub != FIP_SC_REP)
- return 0;
-
- rlen = ntohs(fiph->fip_dl_len) * 4;
- if (rlen + sizeof(*fiph) > skb->len)
- return 0;
-
- desc = (struct fip_desc *)(fiph + 1);
- dlen = desc->fip_dlen * FIP_BPW;
-
- if (desc->fip_dtype == FIP_DT_FLOGI) {
-
- if (dlen < sizeof(*els) + sizeof(*fh) + 1)
- return 0;
-
- els = (struct fip_encaps *)desc;
- fh = (struct fc_frame_header *)(els + 1);
-
- if (!fh)
- return 0;
-
- /*
- * ELS command code, reason and explanation should be = Reject,
- * unsupported command and insufficient resource
- */
- els_op = *(u8 *)(fh + 1);
- if (els_op == ELS_LS_RJT) {
- shost_printk(KERN_INFO, lport->host,
- "Flogi Request Rejected by Switch\n");
- return 1;
- }
- shost_printk(KERN_INFO, lport->host,
- "Flogi Request Accepted by Switch\n");
- }
- return 0;
-}
-
-void fnic_fcoe_send_vlan_req(struct fnic *fnic)
-{
- struct fcoe_ctlr *fip = &fnic->ctlr;
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- struct sk_buff *skb;
- char *eth_fr;
- struct fip_vlan *vlan;
- u64 vlan_tov;
-
- fnic_fcoe_reset_vlans(fnic);
- fnic->set_vlan(fnic, 0);
-
- if (printk_ratelimit())
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Sending VLAN request...\n");
-
- skb = dev_alloc_skb(sizeof(struct fip_vlan));
- if (!skb)
- return;
-
- eth_fr = (char *)skb->data;
- vlan = (struct fip_vlan *)eth_fr;
-
- memset(vlan, 0, sizeof(*vlan));
- memcpy(vlan->eth.h_source, fip->ctl_src_addr, ETH_ALEN);
- memcpy(vlan->eth.h_dest, fcoe_all_fcfs, ETH_ALEN);
- vlan->eth.h_proto = htons(ETH_P_FIP);
-
- vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
- vlan->fip.fip_op = htons(FIP_OP_VLAN);
- vlan->fip.fip_subcode = FIP_SC_VL_REQ;
- vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
-
- vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
- vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
- memcpy(&vlan->desc.mac.fd_mac, fip->ctl_src_addr, ETH_ALEN);
-
- vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
- vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
- put_unaligned_be64(fip->lp->wwnn, &vlan->desc.wwnn.fd_wwn);
- atomic64_inc(&fnic_stats->vlan_stats.vlan_disc_reqs);
-
- skb_put(skb, sizeof(*vlan));
- skb->protocol = htons(ETH_P_FIP);
- skb_reset_mac_header(skb);
- skb_reset_network_header(skb);
- fip->send(fip, skb);
-
- /* set a timer so that we can retry if there no response */
- vlan_tov = jiffies + msecs_to_jiffies(FCOE_CTLR_FIPVLAN_TOV);
- mod_timer(&fnic->fip_timer, round_jiffies(vlan_tov));
-}
-
-static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *skb)
-{
- struct fcoe_ctlr *fip = &fnic->ctlr;
- struct fip_header *fiph;
- struct fip_desc *desc;
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- u16 vid;
- size_t rlen;
- size_t dlen;
- struct fcoe_vlan *vlan;
- u64 sol_time;
- unsigned long flags;
-
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Received VLAN response...\n");
-
- fiph = (struct fip_header *) skb->data;
+ list_del(&cur_frame->links);
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "Received VLAN response... OP 0x%x SUB_OP 0x%x\n",
- ntohs(fiph->fip_op), fiph->fip_subcode);
-
- rlen = ntohs(fiph->fip_dl_len) * 4;
- fnic_fcoe_reset_vlans(fnic);
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- desc = (struct fip_desc *)(fiph + 1);
- while (rlen > 0) {
- dlen = desc->fip_dlen * FIP_BPW;
- switch (desc->fip_dtype) {
- case FIP_DT_VLAN:
- vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
- shost_printk(KERN_INFO, fnic->lport->host,
- "process_vlan_resp: FIP VLAN %d\n", vid);
- vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
- if (!vlan) {
- /* retry from timer */
- spin_unlock_irqrestore(&fnic->vlans_lock,
- flags);
- goto out;
- }
- vlan->vid = vid & 0x0fff;
- vlan->state = FIP_VLAN_AVAIL;
- list_add_tail(&vlan->list, &fnic->vlans);
- break;
- }
- desc = (struct fip_desc *)((char *)desc + dlen);
- rlen -= dlen;
- }
-
- /* any VLAN descriptors present ? */
- if (list_empty(&fnic->vlans)) {
- /* retry from timer */
- atomic64_inc(&fnic_stats->vlan_stats.resp_withno_vlanID);
- FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
- "No VLAN descriptors in FIP VLAN response\n");
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- goto out;
- }
-
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- fnic->set_vlan(fnic, vlan->vid);
- vlan->state = FIP_VLAN_SENT; /* sent now */
- vlan->sol_count++;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
-
- /* start the solicitation */
- fcoe_ctlr_link_up(fip);
-
- sol_time = jiffies + msecs_to_jiffies(FCOE_CTLR_START_DELAY);
- mod_timer(&fnic->fip_timer, round_jiffies(sol_time));
-out:
- return;
-}
-
-static void fnic_fcoe_start_fcf_disc(struct fnic *fnic)
-{
- unsigned long flags;
- struct fcoe_vlan *vlan;
- u64 sol_time;
-
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- vlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- fnic->set_vlan(fnic, vlan->vid);
- vlan->state = FIP_VLAN_SENT; /* sent now */
- vlan->sol_count = 1;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
-
- /* start the solicitation */
- fcoe_ctlr_link_up(&fnic->ctlr);
-
- sol_time = jiffies + msecs_to_jiffies(FCOE_CTLR_START_DELAY);
- mod_timer(&fnic->fip_timer, round_jiffies(sol_time));
-}
-
-static int fnic_fcoe_vlan_check(struct fnic *fnic, u16 flag)
-{
- unsigned long flags;
- struct fcoe_vlan *fvlan;
-
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- if (list_empty(&fnic->vlans)) {
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return -EINVAL;
- }
-
- fvlan = list_first_entry(&fnic->vlans, struct fcoe_vlan, list);
- if (fvlan->state == FIP_VLAN_USED) {
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return 0;
- }
-
- if (fvlan->state == FIP_VLAN_SENT) {
- fvlan->state = FIP_VLAN_USED;
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return 0;
- }
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
- return -EINVAL;
-}
-
-static void fnic_event_enq(struct fnic *fnic, enum fnic_evt ev)
-{
- struct fnic_event *fevt;
- unsigned long flags;
-
- fevt = kmalloc(sizeof(*fevt), GFP_ATOMIC);
- if (!fevt)
- return;
-
- fevt->fnic = fnic;
- fevt->event = ev;
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- list_add_tail(&fevt->list, &fnic->evlist);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
- schedule_work(&fnic->event_work);
-}
-
-static int fnic_fcoe_handle_fip_frame(struct fnic *fnic, struct sk_buff *skb)
-{
- struct fip_header *fiph;
- int ret = 1;
- u16 op;
- u8 sub;
-
- if (!skb || !(skb->data))
- return -1;
-
- if (skb_linearize(skb))
- goto drop;
-
- fiph = (struct fip_header *)skb->data;
- op = ntohs(fiph->fip_op);
- sub = fiph->fip_subcode;
-
- if (FIP_VER_DECAPS(fiph->fip_ver) != FIP_VER)
- goto drop;
-
- if (ntohs(fiph->fip_dl_len) * FIP_BPW + sizeof(*fiph) > skb->len)
- goto drop;
-
- if (op == FIP_OP_DISC && sub == FIP_SC_ADV) {
- if (fnic_fcoe_vlan_check(fnic, ntohs(fiph->fip_flags)))
- goto drop;
- /* pass it on to fcoe */
- ret = 1;
- } else if (op == FIP_OP_VLAN && sub == FIP_SC_VL_NOTE) {
- /* set the vlan as used */
- fnic_fcoe_process_vlan_resp(fnic, skb);
- ret = 0;
- } else if (op == FIP_OP_CTRL && sub == FIP_SC_CLR_VLINK) {
- /* received CVL request, restart vlan disc */
- fnic_event_enq(fnic, FNIC_EVT_START_VLAN_DISC);
- /* pass it on to fcoe */
- ret = 1;
- }
-drop:
- return ret;
-}
-
-void fnic_handle_fip_frame(struct work_struct *work)
-{
- struct fnic *fnic = container_of(work, struct fnic, fip_frame_work);
- struct fnic_stats *fnic_stats = &fnic->fnic_stats;
- unsigned long flags;
- struct sk_buff *skb;
- struct ethhdr *eh;
-
- while ((skb = skb_dequeue(&fnic->fip_frame_queue))) {
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->stop_rx_link_events) {
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- dev_kfree_skb(skb);
- return;
- }
- /*
- * If we're in a transitional state, just re-queue and return.
- * The queue will be serviced when we get to a stable state.
- */
- if (fnic->state != FNIC_IN_FC_MODE &&
- fnic->state != FNIC_IN_ETH_MODE) {
- skb_queue_head(&fnic->fip_frame_queue, skb);
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- return;
- }
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- eh = (struct ethhdr *)skb->data;
- if (eh->h_proto == htons(ETH_P_FIP)) {
- skb_pull(skb, sizeof(*eh));
- if (fnic_fcoe_handle_fip_frame(fnic, skb) <= 0) {
- dev_kfree_skb(skb);
- continue;
- }
- /*
- * If there's FLOGI rejects - clear all
- * fcf's & restart from scratch
- */
- if (is_fnic_fip_flogi_reject(&fnic->ctlr, skb)) {
- atomic64_inc(
- &fnic_stats->vlan_stats.flogi_rejects);
- shost_printk(KERN_INFO, fnic->lport->host,
- "Trigger a Link down - VLAN Disc\n");
- fcoe_ctlr_link_down(&fnic->ctlr);
- /* start FCoE VLAN discovery */
- fnic_fcoe_send_vlan_req(fnic);
- dev_kfree_skb(skb);
- continue;
- }
- fcoe_ctlr_recv(&fnic->ctlr, skb);
- continue;
+ if (fdls_fip_recv_frame(fnic, cur_frame->fp)) {
+ kfree(cur_frame->fp);
+ kfree(cur_frame);
}
}
+ spin_unlock_irqrestore(&fnic->fnic_lock, fnic->lock_flags);
}
/**
* fnic_import_rq_eth_pkt() - handle received FCoE or FIP frame.
* @fnic: fnic instance.
- * @skb: Ethernet Frame.
+ * @fp: Ethernet Frame.
*/
-static inline int fnic_import_rq_eth_pkt(struct fnic *fnic, struct sk_buff *skb)
+static inline int fnic_import_rq_eth_pkt(struct fnic *fnic, void *fp)
{
- struct fc_frame *fp;
struct ethhdr *eh;
- struct fcoe_hdr *fcoe_hdr;
- struct fcoe_crc_eof *ft;
+ struct fnic_frame_list *fip_fr_elem;
+ unsigned long flags;
- /*
- * Undo VLAN encapsulation if present.
- */
- eh = (struct ethhdr *)skb->data;
- if (eh->h_proto == htons(ETH_P_8021Q)) {
- memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2);
- eh = skb_pull(skb, VLAN_HLEN);
- skb_reset_mac_header(skb);
- }
- if (eh->h_proto == htons(ETH_P_FIP)) {
- if (!(fnic->config.flags & VFCF_FIP_CAPABLE)) {
- printk(KERN_ERR "Dropped FIP frame, as firmware "
- "uses non-FIP mode, Enable FIP "
- "using UCSM\n");
- goto drop;
- }
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_RECV|0x80, (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- skb_queue_tail(&fnic->fip_frame_queue, skb);
+ eh = (struct ethhdr *) fp;
+ if ((eh->h_proto == cpu_to_be16(ETH_P_FIP)) && (fnic->iport.usefip)) {
+ fip_fr_elem = (struct fnic_frame_list *)
+ kzalloc(sizeof(struct fnic_frame_list), GFP_ATOMIC);
+ if (!fip_fr_elem)
+ return 0;
+ fip_fr_elem->fp = fp;
+ spin_lock_irqsave(&fnic->fnic_lock, flags);
+ list_add_tail(&fip_fr_elem->links, &fnic->fip_frame_queue);
+ spin_unlock_irqrestore(&fnic->fnic_lock, flags);
queue_work(fnic_fip_queue, &fnic->fip_frame_work);
- return 1; /* let caller know packet was used */
- }
- if (eh->h_proto != htons(ETH_P_FCOE))
- goto drop;
- skb_set_network_header(skb, sizeof(*eh));
- skb_pull(skb, sizeof(*eh));
-
- fcoe_hdr = (struct fcoe_hdr *)skb->data;
- if (FC_FCOE_DECAPS_VER(fcoe_hdr) != FC_FCOE_VER)
- goto drop;
-
- fp = (struct fc_frame *)skb;
- fc_frame_init(fp);
- fr_sof(fp) = fcoe_hdr->fcoe_sof;
- skb_pull(skb, sizeof(struct fcoe_hdr));
- skb_reset_transport_header(skb);
-
- ft = (struct fcoe_crc_eof *)(skb->data + skb->len - sizeof(*ft));
- fr_eof(fp) = ft->fcoe_eof;
- skb_trim(skb, skb->len - sizeof(*ft));
- return 0;
-drop:
- dev_kfree_skb_irq(skb);
- return -1;
+ return 1; /* let caller know packet was used */
+ } else
+ return 0;
}
/**
@@ -802,206 +363,144 @@ drop:
*/
void fnic_update_mac_locked(struct fnic *fnic, u8 *new)
{
- u8 *ctl = fnic->ctlr.ctl_src_addr;
+ struct fnic_iport_s *iport = &fnic->iport;
+ u8 *ctl = iport->hwmac;
u8 *data = fnic->data_src_addr;
if (is_zero_ether_addr(new))
new = ctl;
if (ether_addr_equal(data, new))
return;
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "update_mac %pM\n", new);
+
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "Update MAC: %u\n", *new);
+
if (!is_zero_ether_addr(data) && !ether_addr_equal(data, ctl))
vnic_dev_del_addr(fnic->vdev, data);
+
memcpy(data, new, ETH_ALEN);
if (!ether_addr_equal(new, ctl))
vnic_dev_add_addr(fnic->vdev, new);
}
-/**
- * fnic_update_mac() - set data MAC address and filters.
- * @lport: local port.
- * @new: newly-assigned FCoE MAC address.
- */
-void fnic_update_mac(struct fc_lport *lport, u8 *new)
-{
- struct fnic *fnic = lport_priv(lport);
-
- spin_lock_irq(&fnic->fnic_lock);
- fnic_update_mac_locked(fnic, new);
- spin_unlock_irq(&fnic->fnic_lock);
-}
-
-/**
- * fnic_set_port_id() - set the port_ID after successful FLOGI.
- * @lport: local port.
- * @port_id: assigned FC_ID.
- * @fp: received frame containing the FLOGI accept or NULL.
- *
- * This is called from libfc when a new FC_ID has been assigned.
- * This causes us to reset the firmware to FC_MODE and setup the new MAC
- * address and FC_ID.
- *
- * It is also called with FC_ID 0 when we're logged off.
- *
- * If the FC_ID is due to point-to-point, fp may be NULL.
- */
-void fnic_set_port_id(struct fc_lport *lport, u32 port_id, struct fc_frame *fp)
-{
- struct fnic *fnic = lport_priv(lport);
- u8 *mac;
- int ret;
-
- FNIC_FCS_DBG(KERN_DEBUG, lport->host, fnic->fnic_num,
- "set port_id 0x%x fp 0x%p\n",
- port_id, fp);
-
- /*
- * If we're clearing the FC_ID, change to use the ctl_src_addr.
- * Set ethernet mode to send FLOGI.
- */
- if (!port_id) {
- fnic_update_mac(lport, fnic->ctlr.ctl_src_addr);
- fnic_set_eth_mode(fnic);
- return;
- }
-
- if (fp) {
- mac = fr_cb(fp)->granted_mac;
- if (is_zero_ether_addr(mac)) {
- /* non-FIP - FLOGI already accepted - ignore return */
- fcoe_ctlr_recv_flogi(&fnic->ctlr, lport, fp);
- }
- fnic_update_mac(lport, mac);
- }
-
- /* Change state to reflect transition to FC mode */
- spin_lock_irq(&fnic->fnic_lock);
- if (fnic->state == FNIC_IN_ETH_MODE || fnic->state == FNIC_IN_FC_MODE)
- fnic->state = FNIC_IN_ETH_TRANS_FC_MODE;
- else {
- FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
- "Unexpected fnic state: %s processing FLOGI response",
- fnic_state_to_str(fnic->state));
- spin_unlock_irq(&fnic->fnic_lock);
- return;
- }
- spin_unlock_irq(&fnic->fnic_lock);
-
- /*
- * Send FLOGI registration to firmware to set up FC mode.
- * The new address will be set up when registration completes.
- */
- ret = fnic_flogi_reg_handler(fnic, port_id);
-
- if (ret < 0) {
- spin_lock_irq(&fnic->fnic_lock);
- if (fnic->state == FNIC_IN_ETH_TRANS_FC_MODE)
- fnic->state = FNIC_IN_ETH_MODE;
- spin_unlock_irq(&fnic->fnic_lock);
- }
-}
-
static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
*cq_desc, struct vnic_rq_buf *buf,
int skipped __attribute__((unused)),
void *opaque)
{
struct fnic *fnic = vnic_dev_priv(rq->vdev);
- struct sk_buff *skb;
- struct fc_frame *fp;
+ uint8_t *fp;
struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+ unsigned int ethhdr_stripped;
u8 type, color, eop, sop, ingress_port, vlan_stripped;
- u8 fcoe = 0, fcoe_sof, fcoe_eof;
- u8 fcoe_fc_crc_ok = 1, fcoe_enc_error = 0;
- u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
- u8 ipv6, ipv4, ipv4_fragment, rss_type, csum_not_calc;
+ u8 fcoe_fnic_crc_ok = 1, fcoe_enc_error = 0;
u8 fcs_ok = 1, packet_error = 0;
- u16 q_number, completed_index, bytes_written = 0, vlan, checksum;
+ u16 q_number, completed_index, vlan;
u32 rss_hash;
+ u16 checksum;
+ u8 csum_not_calc, rss_type, ipv4, ipv6, ipv4_fragment;
+ u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
+ u8 fcoe = 0, fcoe_sof, fcoe_eof;
u16 exchange_id, tmpl;
u8 sof = 0;
u8 eof = 0;
u32 fcp_bytes_written = 0;
+ u16 enet_bytes_written = 0;
+ u32 bytes_written = 0;
unsigned long flags;
+ struct fnic_frame_list *frame_elem = NULL;
+ struct ethhdr *eh;
dma_unmap_single(&fnic->pdev->dev, buf->dma_addr, buf->len,
- DMA_FROM_DEVICE);
- skb = buf->os_buf;
- fp = (struct fc_frame *)skb;
+ DMA_FROM_DEVICE);
+ fp = (uint8_t *) buf->os_buf;
buf->os_buf = NULL;
cq_desc_dec(cq_desc, &type, &color, &q_number, &completed_index);
if (type == CQ_DESC_TYPE_RQ_FCP) {
- cq_fcp_rq_desc_dec((struct cq_fcp_rq_desc *)cq_desc,
- &type, &color, &q_number, &completed_index,
- &eop, &sop, &fcoe_fc_crc_ok, &exchange_id,
- &tmpl, &fcp_bytes_written, &sof, &eof,
- &ingress_port, &packet_error,
- &fcoe_enc_error, &fcs_ok, &vlan_stripped,
- &vlan);
- skb_trim(skb, fcp_bytes_written);
- fr_sof(fp) = sof;
- fr_eof(fp) = eof;
-
+ cq_fcp_rq_desc_dec((struct cq_fcp_rq_desc *) cq_desc, &type,
+ &color, &q_number, &completed_index, &eop, &sop,
+ &fcoe_fnic_crc_ok, &exchange_id, &tmpl,
+ &fcp_bytes_written, &sof, &eof, &ingress_port,
+ &packet_error, &fcoe_enc_error, &fcs_ok,
+ &vlan_stripped, &vlan);
+ ethhdr_stripped = 1;
+ bytes_written = fcp_bytes_written;
} else if (type == CQ_DESC_TYPE_RQ_ENET) {
- cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc,
- &type, &color, &q_number, &completed_index,
- &ingress_port, &fcoe, &eop, &sop,
- &rss_type, &csum_not_calc, &rss_hash,
- &bytes_written, &packet_error,
- &vlan_stripped, &vlan, &checksum,
- &fcoe_sof, &fcoe_fc_crc_ok,
- &fcoe_enc_error, &fcoe_eof,
- &tcp_udp_csum_ok, &udp, &tcp,
- &ipv4_csum_ok, &ipv6, &ipv4,
- &ipv4_fragment, &fcs_ok);
- skb_trim(skb, bytes_written);
+ cq_enet_rq_desc_dec((struct cq_enet_rq_desc *) cq_desc, &type,
+ &color, &q_number, &completed_index,
+ &ingress_port, &fcoe, &eop, &sop, &rss_type,
+ &csum_not_calc, &rss_hash, &enet_bytes_written,
+ &packet_error, &vlan_stripped, &vlan,
+ &checksum, &fcoe_sof, &fcoe_fnic_crc_ok,
+ &fcoe_enc_error, &fcoe_eof, &tcp_udp_csum_ok,
+ &udp, &tcp, &ipv4_csum_ok, &ipv6, &ipv4,
+ &ipv4_fragment, &fcs_ok);
+
+ ethhdr_stripped = 0;
+ bytes_written = enet_bytes_written;
+
if (!fcs_ok) {
atomic64_inc(&fnic_stats->misc_stats.frame_errors);
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fcs error. dropping packet.\n");
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "fnic 0x%p fcs error. Dropping packet.\n", fnic);
goto drop;
}
- if (fnic_import_rq_eth_pkt(fnic, skb))
- return;
+ eh = (struct ethhdr *) fp;
+ if (eh->h_proto != cpu_to_be16(ETH_P_FCOE)) {
+
+ if (fnic_import_rq_eth_pkt(fnic, fp))
+ return;
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "Dropping h_proto 0x%x",
+ be16_to_cpu(eh->h_proto));
+ goto drop;
+ }
} else {
- /* wrong CQ type*/
- shost_printk(KERN_ERR, fnic->lport->host,
- "fnic rq_cmpl wrong cq type x%x\n", type);
+ /* wrong CQ type */
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "fnic rq_cmpl wrong cq type x%x\n", type);
goto drop;
}
- if (!fcs_ok || packet_error || !fcoe_fc_crc_ok || fcoe_enc_error) {
+ if (!fcs_ok || packet_error || !fcoe_fnic_crc_ok || fcoe_enc_error) {
atomic64_inc(&fnic_stats->misc_stats.frame_errors);
- FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, fnic->fnic_num,
- "fnic rq_cmpl fcoe x%x fcsok x%x"
- " pkterr x%x fcoe_fc_crc_ok x%x, fcoe_enc_err"
- " x%x\n",
- fcoe, fcs_ok, packet_error,
- fcoe_fc_crc_ok, fcoe_enc_error);
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "fcoe %x fcsok %x pkterr %x ffco %x fee %x\n",
+ fcoe, fcs_ok, packet_error,
+ fcoe_fnic_crc_ok, fcoe_enc_error);
goto drop;
}
spin_lock_irqsave(&fnic->fnic_lock, flags);
if (fnic->stop_rx_link_events) {
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "fnic->stop_rx_link_events: %d\n",
+ fnic->stop_rx_link_events);
goto drop;
}
- fr_dev(fp) = fnic->lport;
+
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no, FNIC_FC_RECV,
- (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
+
+ frame_elem =
+ kzalloc(sizeof(struct fnic_frame_list),
+ GFP_ATOMIC);
+ if (!frame_elem) {
+ FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
+ "Failed to allocate memory for frame elem");
+ goto drop;
}
+ frame_elem->fp = fp;
+ frame_elem->rx_ethhdr_stripped = ethhdr_stripped;
+ frame_elem->frame_len = bytes_written;
- skb_queue_tail(&fnic->frame_queue, skb);
queue_work(fnic_event_queue, &fnic->frame_work);
-
return;
+
drop:
- dev_kfree_skb_irq(skb);
+ kfree(fp);
}
static int fnic_rq_cmpl_handler_cont(struct vnic_dev *vdev,
@@ -1091,62 +590,6 @@ void fnic_free_rq_buf(struct vnic_rq *rq, struct vnic_rq_buf *buf)
buf->os_buf = NULL;
}
-/**
- * fnic_eth_send() - Send Ethernet frame.
- * @fip: fcoe_ctlr instance.
- * @skb: Ethernet Frame, FIP, without VLAN encapsulation.
- */
-void fnic_eth_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
-{
- struct fnic *fnic = fnic_from_ctlr(fip);
- struct vnic_wq *wq = &fnic->wq[0];
- dma_addr_t pa;
- struct ethhdr *eth_hdr;
- struct vlan_ethhdr *vlan_hdr;
- unsigned long flags;
-
- if (!fnic->vlan_hw_insert) {
- eth_hdr = (struct ethhdr *)skb_mac_header(skb);
- vlan_hdr = skb_push(skb, sizeof(*vlan_hdr) - sizeof(*eth_hdr));
- memcpy(vlan_hdr, eth_hdr, 2 * ETH_ALEN);
- vlan_hdr->h_vlan_proto = htons(ETH_P_8021Q);
- vlan_hdr->h_vlan_encapsulated_proto = eth_hdr->h_proto;
- vlan_hdr->h_vlan_TCI = htons(fnic->vlan_id);
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_SEND|0x80, (char *)eth_hdr, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- } else {
- if ((fnic_fc_trace_set_data(fnic->lport->host->host_no,
- FNIC_FC_SEND|0x80, (char *)skb->data, skb->len)) != 0) {
- printk(KERN_ERR "fnic ctlr frame trace error!!!");
- }
- }
-
- pa = dma_map_single(&fnic->pdev->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
- if (dma_mapping_error(&fnic->pdev->dev, pa)) {
- printk(KERN_ERR "DMA mapping failed\n");
- goto free_skb;
- }
-
- spin_lock_irqsave(&fnic->wq_lock[0], flags);
- if (!vnic_wq_desc_avail(wq))
- goto irq_restore;
-
- fnic_queue_wq_eth_desc(wq, skb, pa, skb->len,
- 0 /* hw inserts cos value */,
- fnic->vlan_id, 1);
- spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
- return;
-
-irq_restore:
- spin_unlock_irqrestore(&fnic->wq_lock[0], flags);
- dma_unmap_single(&fnic->pdev->dev, pa, skb->len, DMA_TO_DEVICE);
-free_skb:
- kfree_skb(skb);
-}
-
/*
* Send FC frame.
*/
@@ -1280,6 +723,7 @@ fnic_send_fip_frame(struct fnic_iport_s *iport, void *frame,
if (fnic->in_remove)
return -1;
+ fnic_debug_dump_fip_frame(fnic, frame, frame_size, "Outgoing");
return fnic_send_frame(fnic, frame, frame_size);
}
@@ -1357,44 +801,6 @@ fnic_fdls_register_portid(struct fnic_iport_s *iport, u32 port_id,
return 0;
}
-/**
- * fnic_set_eth_mode() - put fnic into ethernet mode.
- * @fnic: fnic device
- *
- * Called without fnic lock held.
- */
-static void fnic_set_eth_mode(struct fnic *fnic)
-{
- unsigned long flags;
- enum fnic_state old_state;
- int ret;
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
-again:
- old_state = fnic->state;
- switch (old_state) {
- case FNIC_IN_FC_MODE:
- case FNIC_IN_ETH_TRANS_FC_MODE:
- default:
- fnic->state = FNIC_IN_FC_TRANS_ETH_MODE;
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-
- ret = fnic_fw_reset_handler(fnic);
-
- spin_lock_irqsave(&fnic->fnic_lock, flags);
- if (fnic->state != FNIC_IN_FC_TRANS_ETH_MODE)
- goto again;
- if (ret)
- fnic->state = old_state;
- break;
-
- case FNIC_IN_FC_TRANS_ETH_MODE:
- case FNIC_IN_ETH_MODE:
- break;
- }
- spin_unlock_irqrestore(&fnic->fnic_lock, flags);
-}
-
void fnic_free_txq(struct list_head *head)
{
struct fnic_frame_list *cur_frame, *next;
@@ -1464,24 +870,3 @@ void fnic_free_wq_buf(struct vnic_wq *wq, struct vnic_wq_buf *buf)
buf->os_buf = NULL;
}
-void fnic_fcoe_reset_vlans(struct fnic *fnic)
-{
- unsigned long flags;
- struct fcoe_vlan *vlan;
- struct fcoe_vlan *next;
-
- /*
- * indicate a link down to fcoe so that all fcf's are free'd
- * might not be required since we did this before sending vlan
- * discovery request
- */
- spin_lock_irqsave(&fnic->vlans_lock, flags);
- if (!list_empty(&fnic->vlans)) {
- list_for_each_entry_safe(vlan, next, &fnic->vlans, list) {
- list_del(&vlan->list);
- kfree(vlan);
- }
- }
- spin_unlock_irqrestore(&fnic->vlans_lock, flags);
-}
-