char *req_bytes;
struct myri10ge_tx_buffer_state *info;
int mask; /* number of transmit slots -1 */
- int boundary; /* boundary transmits cannot cross */
int req ____cacheline_aligned; /* transmit slots submitted */
int pkt_start; /* packets started */
+ int stop_queue;
+ int linearized;
int done ____cacheline_aligned; /* transmit slots completed */
int pkt_done; /* packets completed */
+ int wake_queue;
};
struct myri10ge_rx_done {
struct net_lro_desc lro_desc[MYRI10GE_MAX_LRO_DESCRIPTORS];
};
-struct myri10ge_priv {
- int running; /* running? */
- int csum_flag; /* rx_csums? */
+struct myri10ge_slice_netstats {
+ unsigned long rx_packets;
+ unsigned long tx_packets;
+ unsigned long rx_bytes;
+ unsigned long tx_bytes;
+ unsigned long rx_dropped;
+ unsigned long tx_dropped;
+};
+
+struct myri10ge_slice_state {
struct myri10ge_tx_buf tx; /* transmit ring */
struct myri10ge_rx_buf rx_small;
struct myri10ge_rx_buf rx_big;
struct myri10ge_rx_done rx_done;
+ struct net_device *dev;
+ struct napi_struct napi;
+ struct myri10ge_priv *mgp;
+ struct myri10ge_slice_netstats stats;
+ __be32 __iomem *irq_claim;
+ struct mcp_irq_data *fw_stats;
+ dma_addr_t fw_stats_bus;
+ int watchdog_tx_done;
+ int watchdog_tx_req;
+ char irq_desc[32];
+};
+
+struct myri10ge_priv {
+ struct myri10ge_slice_state *ss;
+ int tx_boundary; /* boundary transmits cannot cross */
+ int num_slices;
+ int running; /* running? */
+ int csum_flag; /* rx_csums? */
int small_bytes;
int big_bytes;
+ int max_intr_slots;
struct net_device *dev;
- struct napi_struct napi;
struct net_device_stats stats;
+ spinlock_t stats_lock;
u8 __iomem *sram;
int sram_size;
unsigned long board_span;
unsigned long iomem_base;
- __be32 __iomem *irq_claim;
__be32 __iomem *irq_deassert;
char *mac_addr_string;
struct mcp_cmd_response *cmd;
dma_addr_t cmd_bus;
- struct mcp_irq_data *fw_stats;
- dma_addr_t fw_stats_bus;
struct pci_dev *pdev;
int msi_enabled;
+ int msix_enabled;
+ struct msix_entry *msix_vectors;
u32 link_state;
unsigned int rdma_tags_available;
int intr_coal_delay;
__be32 __iomem *intr_coal_delay_ptr;
int mtrr;
int wc_enabled;
- int wake_queue;
- int stop_queue;
int down_cnt;
wait_queue_head_t down_wq;
struct work_struct watchdog_work;
struct timer_list watchdog_timer;
- int watchdog_tx_done;
- int watchdog_tx_req;
- int watchdog_pause;
int watchdog_resets;
- int tx_linearized;
+ int watchdog_pause;
int pause;
char *fw_name;
char eeprom_strings[MYRI10GE_EEPROM_STRINGS_SIZE];
+ char *product_code_string;
char fw_version[128];
int fw_ver_major;
int fw_ver_minor;
static char *myri10ge_fw_unaligned = "myri10ge_ethp_z8e.dat";
static char *myri10ge_fw_aligned = "myri10ge_eth_z8e.dat";
+static char *myri10ge_fw_rss_unaligned = "myri10ge_rss_ethp_z8e.dat";
+static char *myri10ge_fw_rss_aligned = "myri10ge_rss_eth_z8e.dat";
static char *myri10ge_fw_name = NULL;
module_param(myri10ge_fw_name, charp, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(myri10ge_fw_name, "Firmware image name\n");
+MODULE_PARM_DESC(myri10ge_fw_name, "Firmware image name");
static int myri10ge_ecrc_enable = 1;
module_param(myri10ge_ecrc_enable, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_ecrc_enable, "Enable Extended CRC on PCI-E\n");
-
-static int myri10ge_max_intr_slots = 1024;
-module_param(myri10ge_max_intr_slots, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_max_intr_slots, "Interrupt queue slots\n");
+MODULE_PARM_DESC(myri10ge_ecrc_enable, "Enable Extended CRC on PCI-E");
static int myri10ge_small_bytes = -1; /* -1 == auto */
module_param(myri10ge_small_bytes, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(myri10ge_small_bytes, "Threshold of small packets\n");
+MODULE_PARM_DESC(myri10ge_small_bytes, "Threshold of small packets");
static int myri10ge_msi = 1; /* enable msi by default */
module_param(myri10ge_msi, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(myri10ge_msi, "Enable Message Signalled Interrupts\n");
+MODULE_PARM_DESC(myri10ge_msi, "Enable Message Signalled Interrupts");
static int myri10ge_intr_coal_delay = 75;
module_param(myri10ge_intr_coal_delay, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_intr_coal_delay, "Interrupt coalescing delay\n");
+MODULE_PARM_DESC(myri10ge_intr_coal_delay, "Interrupt coalescing delay");
static int myri10ge_flow_control = 1;
module_param(myri10ge_flow_control, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_flow_control, "Pause parameter\n");
+MODULE_PARM_DESC(myri10ge_flow_control, "Pause parameter");
static int myri10ge_deassert_wait = 1;
module_param(myri10ge_deassert_wait, int, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(myri10ge_deassert_wait,
- "Wait when deasserting legacy interrupts\n");
+ "Wait when deasserting legacy interrupts");
static int myri10ge_force_firmware = 0;
module_param(myri10ge_force_firmware, int, S_IRUGO);
MODULE_PARM_DESC(myri10ge_force_firmware,
- "Force firmware to assume aligned completions\n");
+ "Force firmware to assume aligned completions");
static int myri10ge_initial_mtu = MYRI10GE_MAX_ETHER_MTU - ETH_HLEN;
module_param(myri10ge_initial_mtu, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_initial_mtu, "Initial MTU\n");
+MODULE_PARM_DESC(myri10ge_initial_mtu, "Initial MTU");
static int myri10ge_napi_weight = 64;
module_param(myri10ge_napi_weight, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_napi_weight, "Set NAPI weight\n");
+MODULE_PARM_DESC(myri10ge_napi_weight, "Set NAPI weight");
static int myri10ge_watchdog_timeout = 1;
module_param(myri10ge_watchdog_timeout, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_watchdog_timeout, "Set watchdog timeout\n");
+MODULE_PARM_DESC(myri10ge_watchdog_timeout, "Set watchdog timeout");
static int myri10ge_max_irq_loops = 1048576;
module_param(myri10ge_max_irq_loops, int, S_IRUGO);
MODULE_PARM_DESC(myri10ge_max_irq_loops,
- "Set stuck legacy IRQ detection threshold\n");
+ "Set stuck legacy IRQ detection threshold");
#define MYRI10GE_MSG_DEFAULT NETIF_MSG_LINK
static int myri10ge_lro = 1;
module_param(myri10ge_lro, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_lro, "Enable large receive offload\n");
+MODULE_PARM_DESC(myri10ge_lro, "Enable large receive offload");
static int myri10ge_lro_max_pkts = MYRI10GE_LRO_MAX_PKTS;
module_param(myri10ge_lro_max_pkts, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_lro, "Number of LRO packets to be aggregated\n");
+MODULE_PARM_DESC(myri10ge_lro_max_pkts,
+ "Number of LRO packets to be aggregated");
static int myri10ge_fill_thresh = 256;
module_param(myri10ge_fill_thresh, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(myri10ge_fill_thresh, "Number of empty rx slots allowed\n");
+MODULE_PARM_DESC(myri10ge_fill_thresh, "Number of empty rx slots allowed");
static int myri10ge_reset_recover = 1;
static int myri10ge_wcfifo = 0;
module_param(myri10ge_wcfifo, int, S_IRUGO);
-MODULE_PARM_DESC(myri10ge_wcfifo, "Enable WC Fifo when WC is enabled\n");
+MODULE_PARM_DESC(myri10ge_wcfifo, "Enable WC Fifo when WC is enabled");
+
+static int myri10ge_max_slices = 1;
+module_param(myri10ge_max_slices, int, S_IRUGO);
+MODULE_PARM_DESC(myri10ge_max_slices, "Max tx/rx queues");
+
+static int myri10ge_rss_hash = MXGEFW_RSS_HASH_TYPE_SRC_PORT;
+module_param(myri10ge_rss_hash, int, S_IRUGO);
+MODULE_PARM_DESC(myri10ge_rss_hash, "Type of RSS hashing to do");
#define MYRI10GE_FW_OFFSET 1024*1024
#define MYRI10GE_HIGHPART_TO_U32(X) \
for (sleep_total = 0;
sleep_total < 1000
&& response->result == htonl(MYRI10GE_NO_RESPONSE_RESULT);
- sleep_total += 10)
+ sleep_total += 10) {
udelay(10);
+ mb();
+ }
} else {
/* use msleep for most command */
for (sleep_total = 0;
ptr += 1;
}
}
+ if (memcmp(ptr, "PC=", 3) == 0) {
+ ptr += 3;
+ mgp->product_code_string = ptr;
+ }
if (memcmp((const void *)ptr, "SN=", 3) == 0) {
ptr += 3;
mgp->serial_number = simple_strtoul(ptr, &ptr, 10);
static void myri10ge_dummy_rdma(struct myri10ge_priv *mgp, int enable)
{
char __iomem *submit;
- __be32 buf[16];
+ __be32 buf[16] __attribute__ ((__aligned__(8)));
u32 dma_low, dma_high;
int i;
return status;
}
-static int myri10ge_load_firmware(struct myri10ge_priv *mgp)
+static int myri10ge_get_firmware_capabilities(struct myri10ge_priv *mgp)
+{
+ struct myri10ge_cmd cmd;
+ int status;
+
+ /* probe for IPv6 TSO support */
+ mgp->features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_TSO;
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_MAX_TSO6_HDR_SIZE,
+ &cmd, 0);
+ if (status == 0) {
+ mgp->max_tso6 = cmd.data0;
+ mgp->features |= NETIF_F_TSO6;
+ }
+
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_RX_RING_SIZE, &cmd, 0);
+ if (status != 0) {
+ dev_err(&mgp->pdev->dev,
+ "failed MXGEFW_CMD_GET_RX_RING_SIZE\n");
+ return -ENXIO;
+ }
+
+ mgp->max_intr_slots = 2 * (cmd.data0 / sizeof(struct mcp_dma_addr));
+
+ return 0;
+}
+
+static int myri10ge_load_firmware(struct myri10ge_priv *mgp, int adopt)
{
char __iomem *submit;
- __be32 buf[16];
+ __be32 buf[16] __attribute__ ((__aligned__(8)));
u32 dma_low, dma_high, size;
int status, i;
- struct myri10ge_cmd cmd;
size = 0;
status = myri10ge_load_hotplug_firmware(mgp, &size);
if (status) {
+ if (!adopt)
+ return status;
dev_warn(&mgp->pdev->dev, "hotplug firmware loading failed\n");
/* Do not attempt to adopt firmware if there
}
dev_info(&mgp->pdev->dev,
"Successfully adopted running firmware\n");
- if (mgp->tx.boundary == 4096) {
+ if (mgp->tx_boundary == 4096) {
dev_warn(&mgp->pdev->dev,
"Using firmware currently running on NIC"
". For optimal\n");
}
mgp->fw_name = "adopted";
- mgp->tx.boundary = 2048;
+ mgp->tx_boundary = 2048;
+ myri10ge_dummy_rdma(mgp, 1);
+ status = myri10ge_get_firmware_capabilities(mgp);
return status;
}
msleep(1);
mb();
i = 0;
- while (mgp->cmd->data != MYRI10GE_NO_CONFIRM_DATA && i < 20) {
- msleep(1);
+ while (mgp->cmd->data != MYRI10GE_NO_CONFIRM_DATA && i < 9) {
+ msleep(1 << i);
i++;
}
if (mgp->cmd->data != MYRI10GE_NO_CONFIRM_DATA) {
dev_err(&mgp->pdev->dev, "handoff failed\n");
return -ENXIO;
}
- dev_info(&mgp->pdev->dev, "handoff confirmed\n");
myri10ge_dummy_rdma(mgp, 1);
+ status = myri10ge_get_firmware_capabilities(mgp);
- /* probe for IPv6 TSO support */
- mgp->features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_TSO;
- status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_MAX_TSO6_HDR_SIZE,
- &cmd, 0);
- if (status == 0) {
- mgp->max_tso6 = cmd.data0;
- mgp->features |= NETIF_F_TSO6;
- }
- return 0;
+ return status;
}
static int myri10ge_update_mac_address(struct myri10ge_priv *mgp, u8 * addr)
* transfers took to complete.
*/
- len = mgp->tx.boundary;
+ len = mgp->tx_boundary;
cmd.data0 = MYRI10GE_LOWPART_TO_U32(dmatest_bus);
cmd.data1 = MYRI10GE_HIGHPART_TO_U32(dmatest_bus);
static int myri10ge_reset(struct myri10ge_priv *mgp)
{
struct myri10ge_cmd cmd;
- int status;
+ struct myri10ge_slice_state *ss;
+ int i, status;
size_t bytes;
/* try to send a reset command to the card to see if it
}
(void)myri10ge_dma_test(mgp, MXGEFW_DMA_TEST);
+ /*
+ * Use non-ndis mcp_slot (eg, 4 bytes total,
+ * no toeplitz hash value returned. Older firmware will
+ * not understand this command, but will use the correct
+ * sized mcp_slot, so we ignore error returns
+ */
+ cmd.data0 = MXGEFW_RSS_MCP_SLOT_TYPE_MIN;
+ (void)myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_RSS_MCP_SLOT_TYPE, &cmd, 0);
/* Now exchange information about interrupts */
- bytes = myri10ge_max_intr_slots * sizeof(*mgp->rx_done.entry);
- memset(mgp->rx_done.entry, 0, bytes);
+ bytes = mgp->max_intr_slots * sizeof(*mgp->ss[0].rx_done.entry);
cmd.data0 = (u32) bytes;
status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_INTRQ_SIZE, &cmd, 0);
- cmd.data0 = MYRI10GE_LOWPART_TO_U32(mgp->rx_done.bus);
- cmd.data1 = MYRI10GE_HIGHPART_TO_U32(mgp->rx_done.bus);
- status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_INTRQ_DMA, &cmd, 0);
+
+ /*
+ * Even though we already know how many slices are supported
+ * via myri10ge_probe_slices() MXGEFW_CMD_GET_MAX_RSS_QUEUES
+ * has magic side effects, and must be called after a reset.
+ * It must be called prior to calling any RSS related cmds,
+ * including assigning an interrupt queue for anything but
+ * slice 0. It must also be called *after*
+ * MXGEFW_CMD_SET_INTRQ_SIZE, since the intrq size is used by
+ * the firmware to compute offsets.
+ */
+
+ if (mgp->num_slices > 1) {
+
+ /* ask the maximum number of slices it supports */
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_MAX_RSS_QUEUES,
+ &cmd, 0);
+ if (status != 0) {
+ dev_err(&mgp->pdev->dev,
+ "failed to get number of slices\n");
+ }
+
+ /*
+ * MXGEFW_CMD_ENABLE_RSS_QUEUES must be called prior
+ * to setting up the interrupt queue DMA
+ */
+
+ cmd.data0 = mgp->num_slices;
+ cmd.data1 = 1; /* use MSI-X */
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_ENABLE_RSS_QUEUES,
+ &cmd, 0);
+ if (status != 0) {
+ dev_err(&mgp->pdev->dev,
+ "failed to set number of slices\n");
+
+ return status;
+ }
+ }
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+ cmd.data0 = MYRI10GE_LOWPART_TO_U32(ss->rx_done.bus);
+ cmd.data1 = MYRI10GE_HIGHPART_TO_U32(ss->rx_done.bus);
+ cmd.data2 = i;
+ status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_INTRQ_DMA,
+ &cmd, 0);
+ };
status |=
myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_IRQ_ACK_OFFSET, &cmd, 0);
- mgp->irq_claim = (__iomem __be32 *) (mgp->sram + cmd.data0);
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+ ss->irq_claim =
+ (__iomem __be32 *) (mgp->sram + cmd.data0 + 8 * i);
+ }
status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET,
&cmd, 0);
mgp->irq_deassert = (__iomem __be32 *) (mgp->sram + cmd.data0);
}
put_be32(htonl(mgp->intr_coal_delay), mgp->intr_coal_delay_ptr);
- memset(mgp->rx_done.entry, 0, bytes);
-
/* reset mcp/driver shared state back to 0 */
- mgp->tx.req = 0;
- mgp->tx.done = 0;
- mgp->tx.pkt_start = 0;
- mgp->tx.pkt_done = 0;
- mgp->rx_big.cnt = 0;
- mgp->rx_small.cnt = 0;
- mgp->rx_done.idx = 0;
- mgp->rx_done.cnt = 0;
+
mgp->link_changes = 0;
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+
+ memset(ss->rx_done.entry, 0, bytes);
+ ss->tx.req = 0;
+ ss->tx.done = 0;
+ ss->tx.pkt_start = 0;
+ ss->tx.pkt_done = 0;
+ ss->rx_big.cnt = 0;
+ ss->rx_small.cnt = 0;
+ ss->rx_done.idx = 0;
+ ss->rx_done.cnt = 0;
+ ss->tx.wake_queue = 0;
+ ss->tx.stop_queue = 0;
+ }
+
status = myri10ge_update_mac_address(mgp, mgp->dev->dev_addr);
myri10ge_change_pause(mgp, mgp->pause);
myri10ge_set_multicast_list(mgp->dev);
* page into an skb */
static inline int
-myri10ge_rx_done(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx,
+myri10ge_rx_done(struct myri10ge_slice_state *ss, struct myri10ge_rx_buf *rx,
int bytes, int len, __wsum csum)
{
+ struct myri10ge_priv *mgp = ss->mgp;
struct sk_buff *skb;
struct skb_frag_struct rx_frags[MYRI10GE_MAX_FRAGS_PER_FRAME];
int i, idx, hlen, remainder;
rx_frags[0].page_offset += MXGEFW_PAD;
rx_frags[0].size -= MXGEFW_PAD;
len -= MXGEFW_PAD;
- lro_receive_frags(&mgp->rx_done.lro_mgr, rx_frags,
+ lro_receive_frags(&ss->rx_done.lro_mgr, rx_frags,
+ /* opaque, will come back in get_frag_header */
len, len,
- /* opaque, will come back in get_frag_header */
- (void *)(__force unsigned long)csum,
- csum);
+ (void *)(__force unsigned long)csum, csum);
+
return 1;
}
return 1;
}
-static inline void myri10ge_tx_done(struct myri10ge_priv *mgp, int mcp_index)
+static inline void
+myri10ge_tx_done(struct myri10ge_slice_state *ss, int mcp_index)
{
- struct pci_dev *pdev = mgp->pdev;
- struct myri10ge_tx_buf *tx = &mgp->tx;
+ struct pci_dev *pdev = ss->mgp->pdev;
+ struct myri10ge_tx_buf *tx = &ss->tx;
struct sk_buff *skb;
int idx, len;
len = pci_unmap_len(&tx->info[idx], len);
pci_unmap_len_set(&tx->info[idx], len, 0);
if (skb) {
- mgp->stats.tx_bytes += skb->len;
- mgp->stats.tx_packets++;
+ ss->stats.tx_bytes += skb->len;
+ ss->stats.tx_packets++;
dev_kfree_skb_irq(skb);
if (len)
pci_unmap_single(pdev,
}
}
/* start the queue if we've stopped it */
- if (netif_queue_stopped(mgp->dev)
+ if (netif_queue_stopped(ss->dev)
&& tx->req - tx->done < (tx->mask >> 1)) {
- mgp->wake_queue++;
- netif_wake_queue(mgp->dev);
+ tx->wake_queue++;
+ netif_wake_queue(ss->dev);
}
}
-static inline int myri10ge_clean_rx_done(struct myri10ge_priv *mgp, int budget)
+static inline int
+myri10ge_clean_rx_done(struct myri10ge_slice_state *ss, int budget)
{
- struct myri10ge_rx_done *rx_done = &mgp->rx_done;
+ struct myri10ge_rx_done *rx_done = &ss->rx_done;
+ struct myri10ge_priv *mgp = ss->mgp;
unsigned long rx_bytes = 0;
unsigned long rx_packets = 0;
unsigned long rx_ok;
rx_done->entry[idx].length = 0;
checksum = csum_unfold(rx_done->entry[idx].checksum);
if (length <= mgp->small_bytes)
- rx_ok = myri10ge_rx_done(mgp, &mgp->rx_small,
+ rx_ok = myri10ge_rx_done(ss, &ss->rx_small,
mgp->small_bytes,
length, checksum);
else
- rx_ok = myri10ge_rx_done(mgp, &mgp->rx_big,
+ rx_ok = myri10ge_rx_done(ss, &ss->rx_big,
mgp->big_bytes,
length, checksum);
rx_packets += rx_ok;
rx_bytes += rx_ok * (unsigned long)length;
cnt++;
- idx = cnt & (myri10ge_max_intr_slots - 1);
+ idx = cnt & (mgp->max_intr_slots - 1);
work_done++;
}
rx_done->idx = idx;
rx_done->cnt = cnt;
- mgp->stats.rx_packets += rx_packets;
- mgp->stats.rx_bytes += rx_bytes;
+ ss->stats.rx_packets += rx_packets;
+ ss->stats.rx_bytes += rx_bytes;
if (myri10ge_lro)
lro_flush_all(&rx_done->lro_mgr);
/* restock receive rings if needed */
- if (mgp->rx_small.fill_cnt - mgp->rx_small.cnt < myri10ge_fill_thresh)
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_small,
+ if (ss->rx_small.fill_cnt - ss->rx_small.cnt < myri10ge_fill_thresh)
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_small,
mgp->small_bytes + MXGEFW_PAD, 0);
- if (mgp->rx_big.fill_cnt - mgp->rx_big.cnt < myri10ge_fill_thresh)
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_big, mgp->big_bytes, 0);
+ if (ss->rx_big.fill_cnt - ss->rx_big.cnt < myri10ge_fill_thresh)
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_big, mgp->big_bytes, 0);
return work_done;
}
static inline void myri10ge_check_statblock(struct myri10ge_priv *mgp)
{
- struct mcp_irq_data *stats = mgp->fw_stats;
+ struct mcp_irq_data *stats = mgp->ss[0].fw_stats;
if (unlikely(stats->stats_updated)) {
unsigned link_up = ntohl(stats->link_up);
}
}
if (mgp->rdma_tags_available !=
- ntohl(mgp->fw_stats->rdma_tags_available)) {
+ ntohl(stats->rdma_tags_available)) {
mgp->rdma_tags_available =
- ntohl(mgp->fw_stats->rdma_tags_available);
+ ntohl(stats->rdma_tags_available);
printk(KERN_WARNING "myri10ge: %s: RDMA timed out! "
"%d tags left\n", mgp->dev->name,
mgp->rdma_tags_available);
static int myri10ge_poll(struct napi_struct *napi, int budget)
{
- struct myri10ge_priv *mgp =
- container_of(napi, struct myri10ge_priv, napi);
- struct net_device *netdev = mgp->dev;
+ struct myri10ge_slice_state *ss =
+ container_of(napi, struct myri10ge_slice_state, napi);
+ struct net_device *netdev = ss->mgp->dev;
int work_done;
/* process as many rx events as NAPI will allow */
- work_done = myri10ge_clean_rx_done(mgp, budget);
+ work_done = myri10ge_clean_rx_done(ss, budget);
if (work_done < budget) {
netif_rx_complete(netdev, napi);
- put_be32(htonl(3), mgp->irq_claim);
+ put_be32(htonl(3), ss->irq_claim);
}
return work_done;
}
static irqreturn_t myri10ge_intr(int irq, void *arg)
{
- struct myri10ge_priv *mgp = arg;
- struct mcp_irq_data *stats = mgp->fw_stats;
- struct myri10ge_tx_buf *tx = &mgp->tx;
+ struct myri10ge_slice_state *ss = arg;
+ struct myri10ge_priv *mgp = ss->mgp;
+ struct mcp_irq_data *stats = ss->fw_stats;
+ struct myri10ge_tx_buf *tx = &ss->tx;
u32 send_done_count;
int i;
+ /* an interrupt on a non-zero slice is implicitly valid
+ * since MSI-X irqs are not shared */
+ if (ss != mgp->ss) {
+ netif_rx_schedule(ss->dev, &ss->napi);
+ return (IRQ_HANDLED);
+ }
+
/* make sure it is our IRQ, and that the DMA has finished */
if (unlikely(!stats->valid))
return (IRQ_NONE);
/* low bit indicates receives are present, so schedule
* napi poll handler */
if (stats->valid & 1)
- netif_rx_schedule(mgp->dev, &mgp->napi);
+ netif_rx_schedule(ss->dev, &ss->napi);
- if (!mgp->msi_enabled) {
+ if (!mgp->msi_enabled && !mgp->msix_enabled) {
put_be32(0, mgp->irq_deassert);
if (!myri10ge_deassert_wait)
stats->valid = 0;
/* check for transmit completes and receives */
send_done_count = ntohl(stats->send_done_count);
if (send_done_count != tx->pkt_done)
- myri10ge_tx_done(mgp, (int)send_done_count);
+ myri10ge_tx_done(ss, (int)send_done_count);
if (unlikely(i > myri10ge_max_irq_loops)) {
printk(KERN_WARNING "myri10ge: %s: irq stuck?\n",
mgp->dev->name);
myri10ge_check_statblock(mgp);
- put_be32(htonl(3), mgp->irq_claim + 1);
+ put_be32(htonl(3), ss->irq_claim + 1);
return (IRQ_HANDLED);
}
static int
myri10ge_get_settings(struct net_device *netdev, struct ethtool_cmd *cmd)
{
+ struct myri10ge_priv *mgp = netdev_priv(netdev);
+ char *ptr;
+ int i;
+
cmd->autoneg = AUTONEG_DISABLE;
cmd->speed = SPEED_10000;
cmd->duplex = DUPLEX_FULL;
+
+ /*
+ * parse the product code to deterimine the interface type
+ * (CX4, XFP, Quad Ribbon Fiber) by looking at the character
+ * after the 3rd dash in the driver's cached copy of the
+ * EEPROM's product code string.
+ */
+ ptr = mgp->product_code_string;
+ if (ptr == NULL) {
+ printk(KERN_ERR "myri10ge: %s: Missing product code\n",
+ netdev->name);
+ return 0;
+ }
+ for (i = 0; i < 3; i++, ptr++) {
+ ptr = strchr(ptr, '-');
+ if (ptr == NULL) {
+ printk(KERN_ERR "myri10ge: %s: Invalid product "
+ "code %s\n", netdev->name,
+ mgp->product_code_string);
+ return 0;
+ }
+ }
+ if (*ptr == 'R' || *ptr == 'Q') {
+ /* We've found either an XFP or quad ribbon fiber */
+ cmd->port = PORT_FIBRE;
+ }
return 0;
}
myri10ge_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coal)
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
+
coal->rx_coalesce_usecs = mgp->intr_coal_delay;
return 0;
}
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
- ring->rx_mini_max_pending = mgp->rx_small.mask + 1;
- ring->rx_max_pending = mgp->rx_big.mask + 1;
+ ring->rx_mini_max_pending = mgp->ss[0].rx_small.mask + 1;
+ ring->rx_max_pending = mgp->ss[0].rx_big.mask + 1;
ring->rx_jumbo_max_pending = 0;
- ring->tx_max_pending = mgp->rx_small.mask + 1;
+ ring->tx_max_pending = mgp->ss[0].rx_small.mask + 1;
ring->rx_mini_pending = ring->rx_mini_max_pending;
ring->rx_pending = ring->rx_max_pending;
ring->rx_jumbo_pending = ring->rx_jumbo_max_pending;
static u32 myri10ge_get_rx_csum(struct net_device *netdev)
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
+
if (mgp->csum_flag)
return 1;
else
static int myri10ge_set_rx_csum(struct net_device *netdev, u32 csum_enabled)
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
+
if (csum_enabled)
mgp->csum_flag = MXGEFW_FLAGS_CKSUM;
else
return 0;
}
-static const char myri10ge_gstrings_stats[][ETH_GSTRING_LEN] = {
+static const char myri10ge_gstrings_main_stats[][ETH_GSTRING_LEN] = {
"rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
"tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
"rx_length_errors", "rx_over_errors", "rx_crc_errors",
"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
"tx_heartbeat_errors", "tx_window_errors",
/* device-specific stats */
- "tx_boundary", "WC", "irq", "MSI",
+ "tx_boundary", "WC", "irq", "MSI", "MSIX",
"read_dma_bw_MBs", "write_dma_bw_MBs", "read_write_dma_bw_MBs",
- "serial_number", "tx_pkt_start", "tx_pkt_done",
- "tx_req", "tx_done", "rx_small_cnt", "rx_big_cnt",
- "wake_queue", "stop_queue", "watchdog_resets", "tx_linearized",
+ "serial_number", "watchdog_resets",
"link_changes", "link_up", "dropped_link_overflow",
"dropped_link_error_or_filtered",
"dropped_pause", "dropped_bad_phy", "dropped_bad_crc32",
"dropped_unicast_filtered", "dropped_multicast_filtered",
"dropped_runt", "dropped_overrun", "dropped_no_small_buffer",
- "dropped_no_big_buffer", "LRO aggregated", "LRO flushed",
+ "dropped_no_big_buffer"
+};
+
+static const char myri10ge_gstrings_slice_stats[][ETH_GSTRING_LEN] = {
+ "----------- slice ---------",
+ "tx_pkt_start", "tx_pkt_done", "tx_req", "tx_done",
+ "rx_small_cnt", "rx_big_cnt",
+ "wake_queue", "stop_queue", "tx_linearized", "LRO aggregated",
+ "LRO flushed",
"LRO avg aggr", "LRO no_desc"
};
#define MYRI10GE_NET_STATS_LEN 21
-#define MYRI10GE_STATS_LEN ARRAY_SIZE(myri10ge_gstrings_stats)
+#define MYRI10GE_MAIN_STATS_LEN ARRAY_SIZE(myri10ge_gstrings_main_stats)
+#define MYRI10GE_SLICE_STATS_LEN ARRAY_SIZE(myri10ge_gstrings_slice_stats)
static void
myri10ge_get_strings(struct net_device *netdev, u32 stringset, u8 * data)
{
+ struct myri10ge_priv *mgp = netdev_priv(netdev);
+ int i;
+
switch (stringset) {
case ETH_SS_STATS:
- memcpy(data, *myri10ge_gstrings_stats,
- sizeof(myri10ge_gstrings_stats));
+ memcpy(data, *myri10ge_gstrings_main_stats,
+ sizeof(myri10ge_gstrings_main_stats));
+ data += sizeof(myri10ge_gstrings_main_stats);
+ for (i = 0; i < mgp->num_slices; i++) {
+ memcpy(data, *myri10ge_gstrings_slice_stats,
+ sizeof(myri10ge_gstrings_slice_stats));
+ data += sizeof(myri10ge_gstrings_slice_stats);
+ }
break;
}
}
static int myri10ge_get_sset_count(struct net_device *netdev, int sset)
{
+ struct myri10ge_priv *mgp = netdev_priv(netdev);
+
switch (sset) {
case ETH_SS_STATS:
- return MYRI10GE_STATS_LEN;
+ return MYRI10GE_MAIN_STATS_LEN +
+ mgp->num_slices * MYRI10GE_SLICE_STATS_LEN;
default:
return -EOPNOTSUPP;
}
struct ethtool_stats *stats, u64 * data)
{
struct myri10ge_priv *mgp = netdev_priv(netdev);
+ struct myri10ge_slice_state *ss;
+ int slice;
int i;
for (i = 0; i < MYRI10GE_NET_STATS_LEN; i++)
data[i] = ((unsigned long *)&mgp->stats)[i];
- data[i++] = (unsigned int)mgp->tx.boundary;
+ data[i++] = (unsigned int)mgp->tx_boundary;
data[i++] = (unsigned int)mgp->wc_enabled;
data[i++] = (unsigned int)mgp->pdev->irq;
data[i++] = (unsigned int)mgp->msi_enabled;
+ data[i++] = (unsigned int)mgp->msix_enabled;
data[i++] = (unsigned int)mgp->read_dma;
data[i++] = (unsigned int)mgp->write_dma;
data[i++] = (unsigned int)mgp->read_write_dma;
data[i++] = (unsigned int)mgp->serial_number;
- data[i++] = (unsigned int)mgp->tx.pkt_start;
- data[i++] = (unsigned int)mgp->tx.pkt_done;
- data[i++] = (unsigned int)mgp->tx.req;
- data[i++] = (unsigned int)mgp->tx.done;
- data[i++] = (unsigned int)mgp->rx_small.cnt;
- data[i++] = (unsigned int)mgp->rx_big.cnt;
- data[i++] = (unsigned int)mgp->wake_queue;
- data[i++] = (unsigned int)mgp->stop_queue;
data[i++] = (unsigned int)mgp->watchdog_resets;
- data[i++] = (unsigned int)mgp->tx_linearized;
data[i++] = (unsigned int)mgp->link_changes;
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->link_up);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_link_overflow);
- data[i++] =
- (unsigned int)ntohl(mgp->fw_stats->dropped_link_error_or_filtered);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_pause);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_bad_phy);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_bad_crc32);
+
+ /* firmware stats are useful only in the first slice */
+ ss = &mgp->ss[0];
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->link_up);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_link_overflow);
data[i++] =
- (unsigned int)ntohl(mgp->fw_stats->dropped_unicast_filtered);
+ (unsigned int)ntohl(ss->fw_stats->dropped_link_error_or_filtered);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_pause);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_bad_phy);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_bad_crc32);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_unicast_filtered);
data[i++] =
- (unsigned int)ntohl(mgp->fw_stats->dropped_multicast_filtered);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_runt);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_overrun);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_no_small_buffer);
- data[i++] = (unsigned int)ntohl(mgp->fw_stats->dropped_no_big_buffer);
- data[i++] = mgp->rx_done.lro_mgr.stats.aggregated;
- data[i++] = mgp->rx_done.lro_mgr.stats.flushed;
- if (mgp->rx_done.lro_mgr.stats.flushed)
- data[i++] = mgp->rx_done.lro_mgr.stats.aggregated /
- mgp->rx_done.lro_mgr.stats.flushed;
- else
- data[i++] = 0;
- data[i++] = mgp->rx_done.lro_mgr.stats.no_desc;
+ (unsigned int)ntohl(ss->fw_stats->dropped_multicast_filtered);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_runt);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_overrun);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_no_small_buffer);
+ data[i++] = (unsigned int)ntohl(ss->fw_stats->dropped_no_big_buffer);
+
+ for (slice = 0; slice < mgp->num_slices; slice++) {
+ ss = &mgp->ss[slice];
+ data[i++] = slice;
+ data[i++] = (unsigned int)ss->tx.pkt_start;
+ data[i++] = (unsigned int)ss->tx.pkt_done;
+ data[i++] = (unsigned int)ss->tx.req;
+ data[i++] = (unsigned int)ss->tx.done;
+ data[i++] = (unsigned int)ss->rx_small.cnt;
+ data[i++] = (unsigned int)ss->rx_big.cnt;
+ data[i++] = (unsigned int)ss->tx.wake_queue;
+ data[i++] = (unsigned int)ss->tx.stop_queue;
+ data[i++] = (unsigned int)ss->tx.linearized;
+ data[i++] = ss->rx_done.lro_mgr.stats.aggregated;
+ data[i++] = ss->rx_done.lro_mgr.stats.flushed;
+ if (ss->rx_done.lro_mgr.stats.flushed)
+ data[i++] = ss->rx_done.lro_mgr.stats.aggregated /
+ ss->rx_done.lro_mgr.stats.flushed;
+ else
+ data[i++] = 0;
+ data[i++] = ss->rx_done.lro_mgr.stats.no_desc;
+ }
}
static void myri10ge_set_msglevel(struct net_device *netdev, u32 value)
.get_msglevel = myri10ge_get_msglevel
};
-static int myri10ge_allocate_rings(struct net_device *dev)
+static int myri10ge_allocate_rings(struct myri10ge_slice_state *ss)
{
- struct myri10ge_priv *mgp;
+ struct myri10ge_priv *mgp = ss->mgp;
struct myri10ge_cmd cmd;
+ struct net_device *dev = mgp->dev;
int tx_ring_size, rx_ring_size;
int tx_ring_entries, rx_ring_entries;
- int i, status;
+ int i, slice, status;
size_t bytes;
- mgp = netdev_priv(dev);
-
/* get ring sizes */
-
+ slice = ss - mgp->ss;
+ cmd.data0 = slice;
status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_SEND_RING_SIZE, &cmd, 0);
tx_ring_size = cmd.data0;
+ cmd.data0 = slice;
status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_RX_RING_SIZE, &cmd, 0);
if (status != 0)
return status;
tx_ring_entries = tx_ring_size / sizeof(struct mcp_kreq_ether_send);
rx_ring_entries = rx_ring_size / sizeof(struct mcp_dma_addr);
- mgp->tx.mask = tx_ring_entries - 1;
- mgp->rx_small.mask = mgp->rx_big.mask = rx_ring_entries - 1;
+ ss->tx.mask = tx_ring_entries - 1;
+ ss->rx_small.mask = ss->rx_big.mask = rx_ring_entries - 1;
status = -ENOMEM;
/* allocate the host shadow rings */
bytes = 8 + (MYRI10GE_MAX_SEND_DESC_TSO + 4)
- * sizeof(*mgp->tx.req_list);
- mgp->tx.req_bytes = kzalloc(bytes, GFP_KERNEL);
- if (mgp->tx.req_bytes == NULL)
+ * sizeof(*ss->tx.req_list);
+ ss->tx.req_bytes = kzalloc(bytes, GFP_KERNEL);
+ if (ss->tx.req_bytes == NULL)
goto abort_with_nothing;
/* ensure req_list entries are aligned to 8 bytes */
- mgp->tx.req_list = (struct mcp_kreq_ether_send *)
- ALIGN((unsigned long)mgp->tx.req_bytes, 8);
+ ss->tx.req_list = (struct mcp_kreq_ether_send *)
+ ALIGN((unsigned long)ss->tx.req_bytes, 8);
- bytes = rx_ring_entries * sizeof(*mgp->rx_small.shadow);
- mgp->rx_small.shadow = kzalloc(bytes, GFP_KERNEL);
- if (mgp->rx_small.shadow == NULL)
+ bytes = rx_ring_entries * sizeof(*ss->rx_small.shadow);
+ ss->rx_small.shadow = kzalloc(bytes, GFP_KERNEL);
+ if (ss->rx_small.shadow == NULL)
goto abort_with_tx_req_bytes;
- bytes = rx_ring_entries * sizeof(*mgp->rx_big.shadow);
- mgp->rx_big.shadow = kzalloc(bytes, GFP_KERNEL);
- if (mgp->rx_big.shadow == NULL)
+ bytes = rx_ring_entries * sizeof(*ss->rx_big.shadow);
+ ss->rx_big.shadow = kzalloc(bytes, GFP_KERNEL);
+ if (ss->rx_big.shadow == NULL)
goto abort_with_rx_small_shadow;
/* allocate the host info rings */
- bytes = tx_ring_entries * sizeof(*mgp->tx.info);
- mgp->tx.info = kzalloc(bytes, GFP_KERNEL);
- if (mgp->tx.info == NULL)
+ bytes = tx_ring_entries * sizeof(*ss->tx.info);
+ ss->tx.info = kzalloc(bytes, GFP_KERNEL);
+ if (ss->tx.info == NULL)
goto abort_with_rx_big_shadow;
- bytes = rx_ring_entries * sizeof(*mgp->rx_small.info);
- mgp->rx_small.info = kzalloc(bytes, GFP_KERNEL);
- if (mgp->rx_small.info == NULL)
+ bytes = rx_ring_entries * sizeof(*ss->rx_small.info);
+ ss->rx_small.info = kzalloc(bytes, GFP_KERNEL);
+ if (ss->rx_small.info == NULL)
goto abort_with_tx_info;
- bytes = rx_ring_entries * sizeof(*mgp->rx_big.info);
- mgp->rx_big.info = kzalloc(bytes, GFP_KERNEL);
- if (mgp->rx_big.info == NULL)
+ bytes = rx_ring_entries * sizeof(*ss->rx_big.info);
+ ss->rx_big.info = kzalloc(bytes, GFP_KERNEL);
+ if (ss->rx_big.info == NULL)
goto abort_with_rx_small_info;
/* Fill the receive rings */
- mgp->rx_big.cnt = 0;
- mgp->rx_small.cnt = 0;
- mgp->rx_big.fill_cnt = 0;
- mgp->rx_small.fill_cnt = 0;
- mgp->rx_small.page_offset = MYRI10GE_ALLOC_SIZE;
- mgp->rx_big.page_offset = MYRI10GE_ALLOC_SIZE;
- mgp->rx_small.watchdog_needed = 0;
- mgp->rx_big.watchdog_needed = 0;
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_small,
+ ss->rx_big.cnt = 0;
+ ss->rx_small.cnt = 0;
+ ss->rx_big.fill_cnt = 0;
+ ss->rx_small.fill_cnt = 0;
+ ss->rx_small.page_offset = MYRI10GE_ALLOC_SIZE;
+ ss->rx_big.page_offset = MYRI10GE_ALLOC_SIZE;
+ ss->rx_small.watchdog_needed = 0;
+ ss->rx_big.watchdog_needed = 0;
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_small,
mgp->small_bytes + MXGEFW_PAD, 0);
- if (mgp->rx_small.fill_cnt < mgp->rx_small.mask + 1) {
- printk(KERN_ERR "myri10ge: %s: alloced only %d small bufs\n",
- dev->name, mgp->rx_small.fill_cnt);
+ if (ss->rx_small.fill_cnt < ss->rx_small.mask + 1) {
+ printk(KERN_ERR
+ "myri10ge: %s:slice-%d: alloced only %d small bufs\n",
+ dev->name, slice, ss->rx_small.fill_cnt);
goto abort_with_rx_small_ring;
}
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_big, mgp->big_bytes, 0);
- if (mgp->rx_big.fill_cnt < mgp->rx_big.mask + 1) {
- printk(KERN_ERR "myri10ge: %s: alloced only %d big bufs\n",
- dev->name, mgp->rx_big.fill_cnt);
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_big, mgp->big_bytes, 0);
+ if (ss->rx_big.fill_cnt < ss->rx_big.mask + 1) {
+ printk(KERN_ERR
+ "myri10ge: %s:slice-%d: alloced only %d big bufs\n",
+ dev->name, slice, ss->rx_big.fill_cnt);
goto abort_with_rx_big_ring;
}
return 0;
abort_with_rx_big_ring:
- for (i = mgp->rx_big.cnt; i < mgp->rx_big.fill_cnt; i++) {
- int idx = i & mgp->rx_big.mask;
- myri10ge_unmap_rx_page(mgp->pdev, &mgp->rx_big.info[idx],
+ for (i = ss->rx_big.cnt; i < ss->rx_big.fill_cnt; i++) {
+ int idx = i & ss->rx_big.mask;
+ myri10ge_unmap_rx_page(mgp->pdev, &ss->rx_big.info[idx],
mgp->big_bytes);
- put_page(mgp->rx_big.info[idx].page);
+ put_page(ss->rx_big.info[idx].page);
}
abort_with_rx_small_ring:
- for (i = mgp->rx_small.cnt; i < mgp->rx_small.fill_cnt; i++) {
- int idx = i & mgp->rx_small.mask;
- myri10ge_unmap_rx_page(mgp->pdev, &mgp->rx_small.info[idx],
+ for (i = ss->rx_small.cnt; i < ss->rx_small.fill_cnt; i++) {
+ int idx = i & ss->rx_small.mask;
+ myri10ge_unmap_rx_page(mgp->pdev, &ss->rx_small.info[idx],
mgp->small_bytes + MXGEFW_PAD);
- put_page(mgp->rx_small.info[idx].page);
+ put_page(ss->rx_small.info[idx].page);
}
- kfree(mgp->rx_big.info);
+ kfree(ss->rx_big.info);
abort_with_rx_small_info:
- kfree(mgp->rx_small.info);
+ kfree(ss->rx_small.info);
abort_with_tx_info:
- kfree(mgp->tx.info);
+ kfree(ss->tx.info);
abort_with_rx_big_shadow:
- kfree(mgp->rx_big.shadow);
+ kfree(ss->rx_big.shadow);
abort_with_rx_small_shadow:
- kfree(mgp->rx_small.shadow);
+ kfree(ss->rx_small.shadow);
abort_with_tx_req_bytes:
- kfree(mgp->tx.req_bytes);
- mgp->tx.req_bytes = NULL;
- mgp->tx.req_list = NULL;
+ kfree(ss->tx.req_bytes);
+ ss->tx.req_bytes = NULL;
+ ss->tx.req_list = NULL;
abort_with_nothing:
return status;
}
-static void myri10ge_free_rings(struct net_device *dev)
+static void myri10ge_free_rings(struct myri10ge_slice_state *ss)
{
- struct myri10ge_priv *mgp;
+ struct myri10ge_priv *mgp = ss->mgp;
struct sk_buff *skb;
struct myri10ge_tx_buf *tx;
int i, len, idx;
- mgp = netdev_priv(dev);
+ /* If not allocated, skip it */
+ if (ss->tx.req_list == NULL)
+ return;
- for (i = mgp->rx_big.cnt; i < mgp->rx_big.fill_cnt; i++) {
- idx = i & mgp->rx_big.mask;
- if (i == mgp->rx_big.fill_cnt - 1)
- mgp->rx_big.info[idx].page_offset = MYRI10GE_ALLOC_SIZE;
- myri10ge_unmap_rx_page(mgp->pdev, &mgp->rx_big.info[idx],
+ for (i = ss->rx_big.cnt; i < ss->rx_big.fill_cnt; i++) {
+ idx = i & ss->rx_big.mask;
+ if (i == ss->rx_big.fill_cnt - 1)
+ ss->rx_big.info[idx].page_offset = MYRI10GE_ALLOC_SIZE;
+ myri10ge_unmap_rx_page(mgp->pdev, &ss->rx_big.info[idx],
mgp->big_bytes);
- put_page(mgp->rx_big.info[idx].page);
+ put_page(ss->rx_big.info[idx].page);
}
- for (i = mgp->rx_small.cnt; i < mgp->rx_small.fill_cnt; i++) {
- idx = i & mgp->rx_small.mask;
- if (i == mgp->rx_small.fill_cnt - 1)
- mgp->rx_small.info[idx].page_offset =
+ for (i = ss->rx_small.cnt; i < ss->rx_small.fill_cnt; i++) {
+ idx = i & ss->rx_small.mask;
+ if (i == ss->rx_small.fill_cnt - 1)
+ ss->rx_small.info[idx].page_offset =
MYRI10GE_ALLOC_SIZE;
- myri10ge_unmap_rx_page(mgp->pdev, &mgp->rx_small.info[idx],
+ myri10ge_unmap_rx_page(mgp->pdev, &ss->rx_small.info[idx],
mgp->small_bytes + MXGEFW_PAD);
- put_page(mgp->rx_small.info[idx].page);
+ put_page(ss->rx_small.info[idx].page);
}
- tx = &mgp->tx;
+ tx = &ss->tx;
while (tx->done != tx->req) {
idx = tx->done & tx->mask;
skb = tx->info[idx].skb;
len = pci_unmap_len(&tx->info[idx], len);
pci_unmap_len_set(&tx->info[idx], len, 0);
if (skb) {
- mgp->stats.tx_dropped++;
+ ss->stats.tx_dropped++;
dev_kfree_skb_any(skb);
if (len)
pci_unmap_single(mgp->pdev,
PCI_DMA_TODEVICE);
}
}
- kfree(mgp->rx_big.info);
+ kfree(ss->rx_big.info);
- kfree(mgp->rx_small.info);
+ kfree(ss->rx_small.info);
- kfree(mgp->tx.info);
+ kfree(ss->tx.info);
- kfree(mgp->rx_big.shadow);
+ kfree(ss->rx_big.shadow);
- kfree(mgp->rx_small.shadow);
+ kfree(ss->rx_small.shadow);
- kfree(mgp->tx.req_bytes);
- mgp->tx.req_bytes = NULL;
- mgp->tx.req_list = NULL;
+ kfree(ss->tx.req_bytes);
+ ss->tx.req_bytes = NULL;
+ ss->tx.req_list = NULL;
}
static int myri10ge_request_irq(struct myri10ge_priv *mgp)
{
struct pci_dev *pdev = mgp->pdev;
+ struct myri10ge_slice_state *ss;
+ struct net_device *netdev = mgp->dev;
+ int i;
int status;
+ mgp->msi_enabled = 0;
+ mgp->msix_enabled = 0;
+ status = 0;
if (myri10ge_msi) {
- status = pci_enable_msi(pdev);
- if (status != 0)
- dev_err(&pdev->dev,
- "Error %d setting up MSI; falling back to xPIC\n",
- status);
- else
- mgp->msi_enabled = 1;
- } else {
- mgp->msi_enabled = 0;
+ if (mgp->num_slices > 1) {
+ status =
+ pci_enable_msix(pdev, mgp->msix_vectors,
+ mgp->num_slices);
+ if (status == 0) {
+ mgp->msix_enabled = 1;
+ } else {
+ dev_err(&pdev->dev,
+ "Error %d setting up MSI-X\n", status);
+ return status;
+ }
+ }
+ if (mgp->msix_enabled == 0) {
+ status = pci_enable_msi(pdev);
+ if (status != 0) {
+ dev_err(&pdev->dev,
+ "Error %d setting up MSI; falling back to xPIC\n",
+ status);
+ } else {
+ mgp->msi_enabled = 1;
+ }
+ }
}
- status = request_irq(pdev->irq, myri10ge_intr, IRQF_SHARED,
- mgp->dev->name, mgp);
- if (status != 0) {
- dev_err(&pdev->dev, "failed to allocate IRQ\n");
- if (mgp->msi_enabled)
- pci_disable_msi(pdev);
+ if (mgp->msix_enabled) {
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+ snprintf(ss->irq_desc, sizeof(ss->irq_desc),
+ "%s:slice-%d", netdev->name, i);
+ status = request_irq(mgp->msix_vectors[i].vector,
+ myri10ge_intr, 0, ss->irq_desc,
+ ss);
+ if (status != 0) {
+ dev_err(&pdev->dev,
+ "slice %d failed to allocate IRQ\n", i);
+ i--;
+ while (i >= 0) {
+ free_irq(mgp->msix_vectors[i].vector,
+ &mgp->ss[i]);
+ i--;
+ }
+ pci_disable_msix(pdev);
+ return status;
+ }
+ }
+ } else {
+ status = request_irq(pdev->irq, myri10ge_intr, IRQF_SHARED,
+ mgp->dev->name, &mgp->ss[0]);
+ if (status != 0) {
+ dev_err(&pdev->dev, "failed to allocate IRQ\n");
+ if (mgp->msi_enabled)
+ pci_disable_msi(pdev);
+ }
}
return status;
}
static void myri10ge_free_irq(struct myri10ge_priv *mgp)
{
struct pci_dev *pdev = mgp->pdev;
+ int i;
- free_irq(pdev->irq, mgp);
+ if (mgp->msix_enabled) {
+ for (i = 0; i < mgp->num_slices; i++)
+ free_irq(mgp->msix_vectors[i].vector, &mgp->ss[i]);
+ } else {
+ free_irq(pdev->irq, &mgp->ss[0]);
+ }
if (mgp->msi_enabled)
pci_disable_msi(pdev);
+ if (mgp->msix_enabled)
+ pci_disable_msix(pdev);
}
static int
return 0;
}
+static int myri10ge_get_txrx(struct myri10ge_priv *mgp, int slice)
+{
+ struct myri10ge_cmd cmd;
+ struct myri10ge_slice_state *ss;
+ int status;
+
+ ss = &mgp->ss[slice];
+ cmd.data0 = 0; /* single slice for now */
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_SEND_OFFSET, &cmd, 0);
+ ss->tx.lanai = (struct mcp_kreq_ether_send __iomem *)
+ (mgp->sram + cmd.data0);
+
+ cmd.data0 = slice;
+ status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_SMALL_RX_OFFSET,
+ &cmd, 0);
+ ss->rx_small.lanai = (struct mcp_kreq_ether_recv __iomem *)
+ (mgp->sram + cmd.data0);
+
+ cmd.data0 = slice;
+ status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_BIG_RX_OFFSET, &cmd, 0);
+ ss->rx_big.lanai = (struct mcp_kreq_ether_recv __iomem *)
+ (mgp->sram + cmd.data0);
+
+ if (myri10ge_wcfifo && mgp->wc_enabled) {
+ ss->tx.wc_fifo = (u8 __iomem *)
+ mgp->sram + MXGEFW_ETH_SEND_4 + 64 * slice;
+ ss->rx_small.wc_fifo = (u8 __iomem *)
+ mgp->sram + MXGEFW_ETH_RECV_SMALL + 64 * slice;
+ ss->rx_big.wc_fifo = (u8 __iomem *)
+ mgp->sram + MXGEFW_ETH_RECV_BIG + 64 * slice;
+ } else {
+ ss->tx.wc_fifo = NULL;
+ ss->rx_small.wc_fifo = NULL;
+ ss->rx_big.wc_fifo = NULL;
+ }
+ return status;
+
+}
+
+static int myri10ge_set_stats(struct myri10ge_priv *mgp, int slice)
+{
+ struct myri10ge_cmd cmd;
+ struct myri10ge_slice_state *ss;
+ int status;
+
+ ss = &mgp->ss[slice];
+ cmd.data0 = MYRI10GE_LOWPART_TO_U32(ss->fw_stats_bus);
+ cmd.data1 = MYRI10GE_HIGHPART_TO_U32(ss->fw_stats_bus);
+ cmd.data2 = sizeof(struct mcp_irq_data);
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_STATS_DMA_V2, &cmd, 0);
+ if (status == -ENOSYS) {
+ dma_addr_t bus = ss->fw_stats_bus;
+ if (slice != 0)
+ return -EINVAL;
+ bus += offsetof(struct mcp_irq_data, send_done_count);
+ cmd.data0 = MYRI10GE_LOWPART_TO_U32(bus);
+ cmd.data1 = MYRI10GE_HIGHPART_TO_U32(bus);
+ status = myri10ge_send_cmd(mgp,
+ MXGEFW_CMD_SET_STATS_DMA_OBSOLETE,
+ &cmd, 0);
+ /* Firmware cannot support multicast without STATS_DMA_V2 */
+ mgp->fw_multicast_support = 0;
+ } else {
+ mgp->fw_multicast_support = 1;
+ }
+ return 0;
+}
+
static int myri10ge_open(struct net_device *dev)
{
- struct myri10ge_priv *mgp;
+ struct myri10ge_slice_state *ss;
+ struct myri10ge_priv *mgp = netdev_priv(dev);
struct myri10ge_cmd cmd;
+ int i, status, big_pow2, slice;
+ u8 *itable;
struct net_lro_mgr *lro_mgr;
- int status, big_pow2;
-
- mgp = netdev_priv(dev);
if (mgp->running != MYRI10GE_ETH_STOPPED)
return -EBUSY;
goto abort_with_nothing;
}
+ if (mgp->num_slices > 1) {
+ cmd.data0 = mgp->num_slices;
+ cmd.data1 = 1; /* use MSI-X */
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_ENABLE_RSS_QUEUES,
+ &cmd, 0);
+ if (status != 0) {
+ printk(KERN_ERR
+ "myri10ge: %s: failed to set number of slices\n",
+ dev->name);
+ goto abort_with_nothing;
+ }
+ /* setup the indirection table */
+ cmd.data0 = mgp->num_slices;
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_RSS_TABLE_SIZE,
+ &cmd, 0);
+
+ status |= myri10ge_send_cmd(mgp,
+ MXGEFW_CMD_GET_RSS_TABLE_OFFSET,
+ &cmd, 0);
+ if (status != 0) {
+ printk(KERN_ERR
+ "myri10ge: %s: failed to setup rss tables\n",
+ dev->name);
+ }
+
+ /* just enable an identity mapping */
+ itable = mgp->sram + cmd.data0;
+ for (i = 0; i < mgp->num_slices; i++)
+ __raw_writeb(i, &itable[i]);
+
+ cmd.data0 = 1;
+ cmd.data1 = myri10ge_rss_hash;
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_RSS_ENABLE,
+ &cmd, 0);
+ if (status != 0) {
+ printk(KERN_ERR
+ "myri10ge: %s: failed to enable slices\n",
+ dev->name);
+ goto abort_with_nothing;
+ }
+ }
+
status = myri10ge_request_irq(mgp);
if (status != 0)
goto abort_with_nothing;
if (myri10ge_small_bytes > 0)
mgp->small_bytes = myri10ge_small_bytes;
- /* get the lanai pointers to the send and receive rings */
-
- status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_SEND_OFFSET, &cmd, 0);
- mgp->tx.lanai =
- (struct mcp_kreq_ether_send __iomem *)(mgp->sram + cmd.data0);
-
- status |=
- myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_SMALL_RX_OFFSET, &cmd, 0);
- mgp->rx_small.lanai =
- (struct mcp_kreq_ether_recv __iomem *)(mgp->sram + cmd.data0);
-
- status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_BIG_RX_OFFSET, &cmd, 0);
- mgp->rx_big.lanai =
- (struct mcp_kreq_ether_recv __iomem *)(mgp->sram + cmd.data0);
-
- if (status != 0) {
- printk(KERN_ERR
- "myri10ge: %s: failed to get ring sizes or locations\n",
- dev->name);
- mgp->running = MYRI10GE_ETH_STOPPED;
- goto abort_with_irq;
- }
-
- if (myri10ge_wcfifo && mgp->wc_enabled) {
- mgp->tx.wc_fifo = (u8 __iomem *) mgp->sram + MXGEFW_ETH_SEND_4;
- mgp->rx_small.wc_fifo =
- (u8 __iomem *) mgp->sram + MXGEFW_ETH_RECV_SMALL;
- mgp->rx_big.wc_fifo =
- (u8 __iomem *) mgp->sram + MXGEFW_ETH_RECV_BIG;
- } else {
- mgp->tx.wc_fifo = NULL;
- mgp->rx_small.wc_fifo = NULL;
- mgp->rx_big.wc_fifo = NULL;
- }
-
/* Firmware needs the big buff size as a power of 2. Lie and
* tell him the buffer is larger, because we only use 1
* buffer/pkt, and the mtu will prevent overruns.
mgp->big_bytes = big_pow2;
}
- status = myri10ge_allocate_rings(dev);
- if (status != 0)
- goto abort_with_irq;
+ /* setup the per-slice data structures */
+ for (slice = 0; slice < mgp->num_slices; slice++) {
+ ss = &mgp->ss[slice];
+
+ status = myri10ge_get_txrx(mgp, slice);
+ if (status != 0) {
+ printk(KERN_ERR
+ "myri10ge: %s: failed to get ring sizes or locations\n",
+ dev->name);
+ goto abort_with_rings;
+ }
+ status = myri10ge_allocate_rings(ss);
+ if (status != 0)
+ goto abort_with_rings;
+ if (slice == 0)
+ status = myri10ge_set_stats(mgp, slice);
+ if (status) {
+ printk(KERN_ERR
+ "myri10ge: %s: Couldn't set stats DMA\n",
+ dev->name);
+ goto abort_with_rings;
+ }
+
+ lro_mgr = &ss->rx_done.lro_mgr;
+ lro_mgr->dev = dev;
+ lro_mgr->features = LRO_F_NAPI;
+ lro_mgr->ip_summed = CHECKSUM_COMPLETE;
+ lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
+ lro_mgr->max_desc = MYRI10GE_MAX_LRO_DESCRIPTORS;
+ lro_mgr->lro_arr = ss->rx_done.lro_desc;
+ lro_mgr->get_frag_header = myri10ge_get_frag_header;
+ lro_mgr->max_aggr = myri10ge_lro_max_pkts;
+ if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
+ lro_mgr->max_aggr = MAX_SKB_FRAGS;
+
+ /* must happen prior to any irq */
+ napi_enable(&(ss)->napi);
+ }
/* now give firmware buffers sizes, and MTU */
cmd.data0 = dev->mtu + ETH_HLEN + VLAN_HLEN;
goto abort_with_rings;
}
- cmd.data0 = MYRI10GE_LOWPART_TO_U32(mgp->fw_stats_bus);
- cmd.data1 = MYRI10GE_HIGHPART_TO_U32(mgp->fw_stats_bus);
- cmd.data2 = sizeof(struct mcp_irq_data);
- status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_STATS_DMA_V2, &cmd, 0);
- if (status == -ENOSYS) {
- dma_addr_t bus = mgp->fw_stats_bus;
- bus += offsetof(struct mcp_irq_data, send_done_count);
- cmd.data0 = MYRI10GE_LOWPART_TO_U32(bus);
- cmd.data1 = MYRI10GE_HIGHPART_TO_U32(bus);
- status = myri10ge_send_cmd(mgp,
- MXGEFW_CMD_SET_STATS_DMA_OBSOLETE,
- &cmd, 0);
- /* Firmware cannot support multicast without STATS_DMA_V2 */
- mgp->fw_multicast_support = 0;
- } else {
- mgp->fw_multicast_support = 1;
- }
- if (status) {
- printk(KERN_ERR "myri10ge: %s: Couldn't set stats DMA\n",
+ /*
+ * Set Linux style TSO mode; this is needed only on newer
+ * firmware versions. Older versions default to Linux
+ * style TSO
+ */
+ cmd.data0 = 0;
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_TSO_MODE, &cmd, 0);
+ if (status && status != -ENOSYS) {
+ printk(KERN_ERR "myri10ge: %s: Couldn't set TSO mode\n",
dev->name);
goto abort_with_rings;
}
mgp->link_state = ~0U;
mgp->rdma_tags_available = 15;
- lro_mgr = &mgp->rx_done.lro_mgr;
- lro_mgr->dev = dev;
- lro_mgr->features = LRO_F_NAPI;
- lro_mgr->ip_summed = CHECKSUM_COMPLETE;
- lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
- lro_mgr->max_desc = MYRI10GE_MAX_LRO_DESCRIPTORS;
- lro_mgr->lro_arr = mgp->rx_done.lro_desc;
- lro_mgr->get_frag_header = myri10ge_get_frag_header;
- lro_mgr->max_aggr = myri10ge_lro_max_pkts;
- lro_mgr->frag_align_pad = 2;
- if (lro_mgr->max_aggr > MAX_SKB_FRAGS)
- lro_mgr->max_aggr = MAX_SKB_FRAGS;
-
- napi_enable(&mgp->napi); /* must happen prior to any irq */
-
status = myri10ge_send_cmd(mgp, MXGEFW_CMD_ETHERNET_UP, &cmd, 0);
if (status) {
printk(KERN_ERR "myri10ge: %s: Couldn't bring up link\n",
goto abort_with_rings;
}
- mgp->wake_queue = 0;
- mgp->stop_queue = 0;
mgp->running = MYRI10GE_ETH_RUNNING;
mgp->watchdog_timer.expires = jiffies + myri10ge_watchdog_timeout * HZ;
add_timer(&mgp->watchdog_timer);
return 0;
abort_with_rings:
- myri10ge_free_rings(dev);
+ for (i = 0; i < mgp->num_slices; i++)
+ myri10ge_free_rings(&mgp->ss[i]);
-abort_with_irq:
myri10ge_free_irq(mgp);
abort_with_nothing:
static int myri10ge_close(struct net_device *dev)
{
- struct myri10ge_priv *mgp;
+ struct myri10ge_priv *mgp = netdev_priv(dev);
struct myri10ge_cmd cmd;
int status, old_down_cnt;
-
- mgp = netdev_priv(dev);
+ int i;
if (mgp->running != MYRI10GE_ETH_RUNNING)
return 0;
- if (mgp->tx.req_bytes == NULL)
+ if (mgp->ss[0].tx.req_bytes == NULL)
return 0;
del_timer_sync(&mgp->watchdog_timer);
mgp->running = MYRI10GE_ETH_STOPPING;
- napi_disable(&mgp->napi);
+ for (i = 0; i < mgp->num_slices; i++) {
+ napi_disable(&mgp->ss[i].napi);
+ }
netif_carrier_off(dev);
netif_stop_queue(dev);
old_down_cnt = mgp->down_cnt;
netif_tx_disable(dev);
myri10ge_free_irq(mgp);
- myri10ge_free_rings(dev);
+ for (i = 0; i < mgp->num_slices; i++)
+ myri10ge_free_rings(&mgp->ss[i]);
mgp->running = MYRI10GE_ETH_STOPPED;
return 0;
/*
* Transmit a packet. We need to split the packet so that a single
- * segment does not cross myri10ge->tx.boundary, so this makes segment
+ * segment does not cross myri10ge->tx_boundary, so this makes segment
* counting tricky. So rather than try to count segments up front, we
* just give up if there are too few segments to hold a reasonably
* fragmented packet currently available. If we run
static int myri10ge_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct myri10ge_priv *mgp = netdev_priv(dev);
+ struct myri10ge_slice_state *ss;
struct mcp_kreq_ether_send *req;
- struct myri10ge_tx_buf *tx = &mgp->tx;
+ struct myri10ge_tx_buf *tx;
struct skb_frag_struct *frag;
dma_addr_t bus;
u32 low;
int cum_len, seglen, boundary, rdma_count;
u8 flags, odd_flag;
+ /* always transmit through slot 0 */
+ ss = mgp->ss;
+ tx = &ss->tx;
again:
req = tx->req_list;
avail = tx->mask - 1 - (tx->req - tx->done);
if ((unlikely(avail < max_segments))) {
/* we are out of transmit resources */
- mgp->stop_queue++;
+ tx->stop_queue++;
netif_stop_queue(dev);
return 1;
}
if (skb_padto(skb, ETH_ZLEN)) {
/* The packet is gone, so we must
* return 0 */
- mgp->stats.tx_dropped += 1;
+ ss->stats.tx_dropped += 1;
return 0;
}
/* adjust the len to account for the zero pad
while (1) {
/* Break the SKB or Fragment up into pieces which
- * do not cross mgp->tx.boundary */
+ * do not cross mgp->tx_boundary */
low = MYRI10GE_LOWPART_TO_U32(bus);
high_swapped = htonl(MYRI10GE_HIGHPART_TO_U32(bus));
while (len) {
if (unlikely(count == max_segments))
goto abort_linearize;
- boundary = (low + tx->boundary) & ~(tx->boundary - 1);
+ boundary =
+ (low + mgp->tx_boundary) & ~(mgp->tx_boundary - 1);
seglen = boundary - low;
if (seglen > len)
seglen = len;
myri10ge_submit_req_wc(tx, tx->req_list, count);
tx->pkt_start++;
if ((avail - count) < MXGEFW_MAX_SEND_DESC) {
- mgp->stop_queue++;
+ tx->stop_queue++;
netif_stop_queue(dev);
}
dev->trans_start = jiffies;
if (skb_linearize(skb))
goto drop;
- mgp->tx_linearized++;
+ tx->linearized++;
goto again;
drop:
dev_kfree_skb_any(skb);
- mgp->stats.tx_dropped += 1;
+ ss->stats.tx_dropped += 1;
return 0;
}
static int myri10ge_sw_tso(struct sk_buff *skb, struct net_device *dev)
{
struct sk_buff *segs, *curr;
- struct myri10ge_priv *mgp = dev->priv;
+ struct myri10ge_priv *mgp = netdev_priv(dev);
int status;
segs = skb_gso_segment(skb, dev->features & ~NETIF_F_TSO6);
- if (unlikely(IS_ERR(segs)))
+ if (IS_ERR(segs))
goto drop;
while (segs) {
static struct net_device_stats *myri10ge_get_stats(struct net_device *dev)
{
struct myri10ge_priv *mgp = netdev_priv(dev);
- return &mgp->stats;
+ struct myri10ge_slice_netstats *slice_stats;
+ struct net_device_stats *stats = &mgp->stats;
+ int i;
+
+ memset(stats, 0, sizeof(*stats));
+ for (i = 0; i < mgp->num_slices; i++) {
+ slice_stats = &mgp->ss[i].stats;
+ stats->rx_packets += slice_stats->rx_packets;
+ stats->tx_packets += slice_stats->tx_packets;
+ stats->rx_bytes += slice_stats->rx_bytes;
+ stats->tx_bytes += slice_stats->tx_bytes;
+ stats->rx_dropped += slice_stats->rx_dropped;
+ stats->tx_dropped += slice_stats->tx_dropped;
+ }
+ return stats;
}
static void myri10ge_set_multicast_list(struct net_device *dev)
{
+ struct myri10ge_priv *mgp = netdev_priv(dev);
struct myri10ge_cmd cmd;
- struct myri10ge_priv *mgp;
struct dev_mc_list *mc_list;
__be32 data[2] = { 0, 0 };
int err;
DECLARE_MAC_BUF(mac);
- mgp = netdev_priv(dev);
/* can be called from atomic contexts,
* pass 1 to force atomicity in myri10ge_send_cmd() */
myri10ge_change_promisc(mgp, dev->flags & IFF_PROMISC, 1);
ext_type = (val & PCI_EXP_FLAGS_TYPE) >> 4;
if (ext_type != PCI_EXP_TYPE_ROOT_PORT) {
if (myri10ge_ecrc_enable > 1) {
- struct pci_dev *old_bridge = bridge;
+ struct pci_dev *prev_bridge, *old_bridge = bridge;
/* Walk the hierarchy up to the root port
* where ECRC has to be enabled */
do {
+ prev_bridge = bridge;
bridge = bridge->bus->self;
- if (!bridge) {
+ if (!bridge || prev_bridge == bridge) {
dev_err(dev,
"Failed to find root port"
" to force ECRC\n");
*
* If the driver can neither enable ECRC nor verify that it has
* already been enabled, then it must use a firmware image which works
- * around unaligned completion packets (myri10ge_ethp_z8e.dat), and it
+ * around unaligned completion packets (myri10ge_rss_ethp_z8e.dat), and it
* should also ensure that it never gives the device a Read-DMA which is
- * larger than 2KB by setting the tx.boundary to 2KB. If ECRC is
- * enabled, then the driver should use the aligned (myri10ge_eth_z8e.dat)
- * firmware image, and set tx.boundary to 4KB.
+ * larger than 2KB by setting the tx_boundary to 2KB. If ECRC is
+ * enabled, then the driver should use the aligned (myri10ge_rss_eth_z8e.dat)
+ * firmware image, and set tx_boundary to 4KB.
*/
static void myri10ge_firmware_probe(struct myri10ge_priv *mgp)
struct device *dev = &pdev->dev;
int status;
- mgp->tx.boundary = 4096;
+ mgp->tx_boundary = 4096;
/*
* Verify the max read request size was set to 4KB
* before trying the test with 4KB.
}
if (status != 4096) {
dev_warn(dev, "Max Read Request size != 4096 (%d)\n", status);
- mgp->tx.boundary = 2048;
+ mgp->tx_boundary = 2048;
}
/*
* load the optimized firmware (which assumes aligned PCIe
* completions) in order to see if it works on this host.
*/
mgp->fw_name = myri10ge_fw_aligned;
- status = myri10ge_load_firmware(mgp);
+ status = myri10ge_load_firmware(mgp, 1);
if (status != 0) {
goto abort;
}
"Please install up to date fw\n");
abort:
/* fall back to using the unaligned firmware */
- mgp->tx.boundary = 2048;
+ mgp->tx_boundary = 2048;
mgp->fw_name = myri10ge_fw_unaligned;
}
if (link_width < 8) {
dev_info(&mgp->pdev->dev, "PCIE x%d Link\n",
link_width);
- mgp->tx.boundary = 4096;
+ mgp->tx_boundary = 4096;
mgp->fw_name = myri10ge_fw_aligned;
} else {
myri10ge_firmware_probe(mgp);
if (myri10ge_force_firmware == 1) {
dev_info(&mgp->pdev->dev,
"Assuming aligned completions (forced)\n");
- mgp->tx.boundary = 4096;
+ mgp->tx_boundary = 4096;
mgp->fw_name = myri10ge_fw_aligned;
} else {
dev_info(&mgp->pdev->dev,
"Assuming unaligned completions (forced)\n");
- mgp->tx.boundary = 2048;
+ mgp->tx_boundary = 2048;
mgp->fw_name = myri10ge_fw_unaligned;
}
}
{
struct myri10ge_priv *mgp =
container_of(work, struct myri10ge_priv, watchdog_work);
+ struct myri10ge_tx_buf *tx;
u32 reboot;
int status;
+ int i;
u16 cmd, vendor;
mgp->watchdog_resets++;
printk(KERN_ERR "myri10ge: %s: device timeout, resetting\n",
mgp->dev->name);
- printk(KERN_INFO "myri10ge: %s: %d %d %d %d %d\n",
- mgp->dev->name, mgp->tx.req, mgp->tx.done,
- mgp->tx.pkt_start, mgp->tx.pkt_done,
- (int)ntohl(mgp->fw_stats->send_done_count));
- msleep(2000);
- printk(KERN_INFO "myri10ge: %s: %d %d %d %d %d\n",
- mgp->dev->name, mgp->tx.req, mgp->tx.done,
- mgp->tx.pkt_start, mgp->tx.pkt_done,
- (int)ntohl(mgp->fw_stats->send_done_count));
+ for (i = 0; i < mgp->num_slices; i++) {
+ tx = &mgp->ss[i].tx;
+ printk(KERN_INFO
+ "myri10ge: %s: (%d): %d %d %d %d %d\n",
+ mgp->dev->name, i, tx->req, tx->done,
+ tx->pkt_start, tx->pkt_done,
+ (int)ntohl(mgp->ss[i].fw_stats->
+ send_done_count));
+ msleep(2000);
+ printk(KERN_INFO
+ "myri10ge: %s: (%d): %d %d %d %d %d\n",
+ mgp->dev->name, i, tx->req, tx->done,
+ tx->pkt_start, tx->pkt_done,
+ (int)ntohl(mgp->ss[i].fw_stats->
+ send_done_count));
+ }
}
rtnl_lock();
myri10ge_close(mgp->dev);
- status = myri10ge_load_firmware(mgp);
+ status = myri10ge_load_firmware(mgp, 1);
if (status != 0)
printk(KERN_ERR "myri10ge: %s: failed to load firmware\n",
mgp->dev->name);
static void myri10ge_watchdog_timer(unsigned long arg)
{
struct myri10ge_priv *mgp;
+ struct myri10ge_slice_state *ss;
+ int i, reset_needed;
u32 rx_pause_cnt;
mgp = (struct myri10ge_priv *)arg;
- if (mgp->rx_small.watchdog_needed) {
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_small,
- mgp->small_bytes + MXGEFW_PAD, 1);
- if (mgp->rx_small.fill_cnt - mgp->rx_small.cnt >=
- myri10ge_fill_thresh)
- mgp->rx_small.watchdog_needed = 0;
- }
- if (mgp->rx_big.watchdog_needed) {
- myri10ge_alloc_rx_pages(mgp, &mgp->rx_big, mgp->big_bytes, 1);
- if (mgp->rx_big.fill_cnt - mgp->rx_big.cnt >=
- myri10ge_fill_thresh)
- mgp->rx_big.watchdog_needed = 0;
- }
- rx_pause_cnt = ntohl(mgp->fw_stats->dropped_pause);
-
- if (mgp->tx.req != mgp->tx.done &&
- mgp->tx.done == mgp->watchdog_tx_done &&
- mgp->watchdog_tx_req != mgp->watchdog_tx_done) {
- /* nic seems like it might be stuck.. */
- if (rx_pause_cnt != mgp->watchdog_pause) {
- if (net_ratelimit())
- printk(KERN_WARNING "myri10ge %s:"
- "TX paused, check link partner\n",
- mgp->dev->name);
- } else {
- schedule_work(&mgp->watchdog_work);
- return;
+ rx_pause_cnt = ntohl(mgp->ss[0].fw_stats->dropped_pause);
+ for (i = 0, reset_needed = 0;
+ i < mgp->num_slices && reset_needed == 0; ++i) {
+
+ ss = &mgp->ss[i];
+ if (ss->rx_small.watchdog_needed) {
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_small,
+ mgp->small_bytes + MXGEFW_PAD,
+ 1);
+ if (ss->rx_small.fill_cnt - ss->rx_small.cnt >=
+ myri10ge_fill_thresh)
+ ss->rx_small.watchdog_needed = 0;
+ }
+ if (ss->rx_big.watchdog_needed) {
+ myri10ge_alloc_rx_pages(mgp, &ss->rx_big,
+ mgp->big_bytes, 1);
+ if (ss->rx_big.fill_cnt - ss->rx_big.cnt >=
+ myri10ge_fill_thresh)
+ ss->rx_big.watchdog_needed = 0;
}
+
+ if (ss->tx.req != ss->tx.done &&
+ ss->tx.done == ss->watchdog_tx_done &&
+ ss->watchdog_tx_req != ss->watchdog_tx_done) {
+ /* nic seems like it might be stuck.. */
+ if (rx_pause_cnt != mgp->watchdog_pause) {
+ if (net_ratelimit())
+ printk(KERN_WARNING "myri10ge %s:"
+ "TX paused, check link partner\n",
+ mgp->dev->name);
+ } else {
+ reset_needed = 1;
+ }
+ }
+ ss->watchdog_tx_done = ss->tx.done;
+ ss->watchdog_tx_req = ss->tx.req;
}
- /* rearm timer */
- mod_timer(&mgp->watchdog_timer,
- jiffies + myri10ge_watchdog_timeout * HZ);
- mgp->watchdog_tx_done = mgp->tx.done;
- mgp->watchdog_tx_req = mgp->tx.req;
mgp->watchdog_pause = rx_pause_cnt;
+
+ if (reset_needed) {
+ schedule_work(&mgp->watchdog_work);
+ } else {
+ /* rearm timer */
+ mod_timer(&mgp->watchdog_timer,
+ jiffies + myri10ge_watchdog_timeout * HZ);
+ }
+}
+
+static void myri10ge_free_slices(struct myri10ge_priv *mgp)
+{
+ struct myri10ge_slice_state *ss;
+ struct pci_dev *pdev = mgp->pdev;
+ size_t bytes;
+ int i;
+
+ if (mgp->ss == NULL)
+ return;
+
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+ if (ss->rx_done.entry != NULL) {
+ bytes = mgp->max_intr_slots *
+ sizeof(*ss->rx_done.entry);
+ dma_free_coherent(&pdev->dev, bytes,
+ ss->rx_done.entry, ss->rx_done.bus);
+ ss->rx_done.entry = NULL;
+ }
+ if (ss->fw_stats != NULL) {
+ bytes = sizeof(*ss->fw_stats);
+ dma_free_coherent(&pdev->dev, bytes,
+ ss->fw_stats, ss->fw_stats_bus);
+ ss->fw_stats = NULL;
+ }
+ }
+ kfree(mgp->ss);
+ mgp->ss = NULL;
+}
+
+static int myri10ge_alloc_slices(struct myri10ge_priv *mgp)
+{
+ struct myri10ge_slice_state *ss;
+ struct pci_dev *pdev = mgp->pdev;
+ size_t bytes;
+ int i;
+
+ bytes = sizeof(*mgp->ss) * mgp->num_slices;
+ mgp->ss = kzalloc(bytes, GFP_KERNEL);
+ if (mgp->ss == NULL) {
+ return -ENOMEM;
+ }
+
+ for (i = 0; i < mgp->num_slices; i++) {
+ ss = &mgp->ss[i];
+ bytes = mgp->max_intr_slots * sizeof(*ss->rx_done.entry);
+ ss->rx_done.entry = dma_alloc_coherent(&pdev->dev, bytes,
+ &ss->rx_done.bus,
+ GFP_KERNEL);
+ if (ss->rx_done.entry == NULL)
+ goto abort;
+ memset(ss->rx_done.entry, 0, bytes);
+ bytes = sizeof(*ss->fw_stats);
+ ss->fw_stats = dma_alloc_coherent(&pdev->dev, bytes,
+ &ss->fw_stats_bus,
+ GFP_KERNEL);
+ if (ss->fw_stats == NULL)
+ goto abort;
+ ss->mgp = mgp;
+ ss->dev = mgp->dev;
+ netif_napi_add(ss->dev, &ss->napi, myri10ge_poll,
+ myri10ge_napi_weight);
+ }
+ return 0;
+abort:
+ myri10ge_free_slices(mgp);
+ return -ENOMEM;
+}
+
+/*
+ * This function determines the number of slices supported.
+ * The number slices is the minumum of the number of CPUS,
+ * the number of MSI-X irqs supported, the number of slices
+ * supported by the firmware
+ */
+static void myri10ge_probe_slices(struct myri10ge_priv *mgp)
+{
+ struct myri10ge_cmd cmd;
+ struct pci_dev *pdev = mgp->pdev;
+ char *old_fw;
+ int i, status, ncpus, msix_cap;
+
+ mgp->num_slices = 1;
+ msix_cap = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
+ ncpus = num_online_cpus();
+
+ if (myri10ge_max_slices == 1 || msix_cap == 0 ||
+ (myri10ge_max_slices == -1 && ncpus < 2))
+ return;
+
+ /* try to load the slice aware rss firmware */
+ old_fw = mgp->fw_name;
+ if (old_fw == myri10ge_fw_aligned)
+ mgp->fw_name = myri10ge_fw_rss_aligned;
+ else
+ mgp->fw_name = myri10ge_fw_rss_unaligned;
+ status = myri10ge_load_firmware(mgp, 0);
+ if (status != 0) {
+ dev_info(&pdev->dev, "Rss firmware not found\n");
+ return;
+ }
+
+ /* hit the board with a reset to ensure it is alive */
+ memset(&cmd, 0, sizeof(cmd));
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_RESET, &cmd, 0);
+ if (status != 0) {
+ dev_err(&mgp->pdev->dev, "failed reset\n");
+ goto abort_with_fw;
+ return;
+ }
+
+ mgp->max_intr_slots = cmd.data0 / sizeof(struct mcp_slot);
+
+ /* tell it the size of the interrupt queues */
+ cmd.data0 = mgp->max_intr_slots * sizeof(struct mcp_slot);
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_SET_INTRQ_SIZE, &cmd, 0);
+ if (status != 0) {
+ dev_err(&mgp->pdev->dev, "failed MXGEFW_CMD_SET_INTRQ_SIZE\n");
+ goto abort_with_fw;
+ }
+
+ /* ask the maximum number of slices it supports */
+ status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_MAX_RSS_QUEUES, &cmd, 0);
+ if (status != 0)
+ goto abort_with_fw;
+ else
+ mgp->num_slices = cmd.data0;
+
+ /* Only allow multiple slices if MSI-X is usable */
+ if (!myri10ge_msi) {
+ goto abort_with_fw;
+ }
+
+ /* if the admin did not specify a limit to how many
+ * slices we should use, cap it automatically to the
+ * number of CPUs currently online */
+ if (myri10ge_max_slices == -1)
+ myri10ge_max_slices = ncpus;
+
+ if (mgp->num_slices > myri10ge_max_slices)
+ mgp->num_slices = myri10ge_max_slices;
+
+ /* Now try to allocate as many MSI-X vectors as we have
+ * slices. We give up on MSI-X if we can only get a single
+ * vector. */
+
+ mgp->msix_vectors = kzalloc(mgp->num_slices *
+ sizeof(*mgp->msix_vectors), GFP_KERNEL);
+ if (mgp->msix_vectors == NULL)
+ goto disable_msix;
+ for (i = 0; i < mgp->num_slices; i++) {
+ mgp->msix_vectors[i].entry = i;
+ }
+
+ while (mgp->num_slices > 1) {
+ /* make sure it is a power of two */
+ while (!is_power_of_2(mgp->num_slices))
+ mgp->num_slices--;
+ if (mgp->num_slices == 1)
+ goto disable_msix;
+ status = pci_enable_msix(pdev, mgp->msix_vectors,
+ mgp->num_slices);
+ if (status == 0) {
+ pci_disable_msix(pdev);
+ return;
+ }
+ if (status > 0)
+ mgp->num_slices = status;
+ else
+ goto disable_msix;
+ }
+
+disable_msix:
+ if (mgp->msix_vectors != NULL) {
+ kfree(mgp->msix_vectors);
+ mgp->msix_vectors = NULL;
+ }
+
+abort_with_fw:
+ mgp->num_slices = 1;
+ mgp->fw_name = old_fw;
+ myri10ge_load_firmware(mgp, 0);
}
static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct net_device *netdev;
struct myri10ge_priv *mgp;
struct device *dev = &pdev->dev;
- size_t bytes;
int i;
int status = -ENXIO;
int dac_enabled;
mgp = netdev_priv(netdev);
mgp->dev = netdev;
- netif_napi_add(netdev, &mgp->napi, myri10ge_poll, myri10ge_napi_weight);
mgp->pdev = pdev;
mgp->csum_flag = MXGEFW_FLAGS_CKSUM;
mgp->pause = myri10ge_flow_control;
if (mgp->cmd == NULL)
goto abort_with_netdev;
- mgp->fw_stats = dma_alloc_coherent(&pdev->dev, sizeof(*mgp->fw_stats),
- &mgp->fw_stats_bus, GFP_KERNEL);
- if (mgp->fw_stats == NULL)
- goto abort_with_cmd;
-
mgp->board_span = pci_resource_len(pdev, 0);
mgp->iomem_base = pci_resource_start(pdev, 0);
mgp->mtrr = -1;
for (i = 0; i < ETH_ALEN; i++)
netdev->dev_addr[i] = mgp->mac_addr[i];
- /* allocate rx done ring */
- bytes = myri10ge_max_intr_slots * sizeof(*mgp->rx_done.entry);
- mgp->rx_done.entry = dma_alloc_coherent(&pdev->dev, bytes,
- &mgp->rx_done.bus, GFP_KERNEL);
- if (mgp->rx_done.entry == NULL)
- goto abort_with_ioremap;
- memset(mgp->rx_done.entry, 0, bytes);
-
myri10ge_select_firmware(mgp);
- status = myri10ge_load_firmware(mgp);
+ status = myri10ge_load_firmware(mgp, 1);
if (status != 0) {
dev_err(&pdev->dev, "failed to load firmware\n");
- goto abort_with_rx_done;
+ goto abort_with_ioremap;
+ }
+ myri10ge_probe_slices(mgp);
+ status = myri10ge_alloc_slices(mgp);
+ if (status != 0) {
+ dev_err(&pdev->dev, "failed to alloc slice state\n");
+ goto abort_with_firmware;
}
status = myri10ge_reset(mgp);
if (status != 0) {
dev_err(&pdev->dev, "failed reset\n");
- goto abort_with_firmware;
+ goto abort_with_slices;
}
pci_set_drvdata(pdev, mgp);
dev_err(&pdev->dev, "register_netdev failed: %d\n", status);
goto abort_with_state;
}
- dev_info(dev, "%s IRQ %d, tx bndry %d, fw %s, WC %s\n",
- (mgp->msi_enabled ? "MSI" : "xPIC"),
- netdev->irq, mgp->tx.boundary, mgp->fw_name,
- (mgp->wc_enabled ? "Enabled" : "Disabled"));
+ if (mgp->msix_enabled)
+ dev_info(dev, "%d MSI-X IRQs, tx bndry %d, fw %s, WC %s\n",
+ mgp->num_slices, mgp->tx_boundary, mgp->fw_name,
+ (mgp->wc_enabled ? "Enabled" : "Disabled"));
+ else
+ dev_info(dev, "%s IRQ %d, tx bndry %d, fw %s, WC %s\n",
+ mgp->msi_enabled ? "MSI" : "xPIC",
+ netdev->irq, mgp->tx_boundary, mgp->fw_name,
+ (mgp->wc_enabled ? "Enabled" : "Disabled"));
return 0;
abort_with_state:
pci_restore_state(pdev);
+abort_with_slices:
+ myri10ge_free_slices(mgp);
+
abort_with_firmware:
myri10ge_dummy_rdma(mgp, 0);
-abort_with_rx_done:
- bytes = myri10ge_max_intr_slots * sizeof(*mgp->rx_done.entry);
- dma_free_coherent(&pdev->dev, bytes,
- mgp->rx_done.entry, mgp->rx_done.bus);
-
abort_with_ioremap:
iounmap(mgp->sram);
if (mgp->mtrr >= 0)
mtrr_del(mgp->mtrr, mgp->iomem_base, mgp->board_span);
#endif
- dma_free_coherent(&pdev->dev, sizeof(*mgp->fw_stats),
- mgp->fw_stats, mgp->fw_stats_bus);
-
-abort_with_cmd:
dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
mgp->cmd, mgp->cmd_bus);
{
struct myri10ge_priv *mgp;
struct net_device *netdev;
- size_t bytes;
mgp = pci_get_drvdata(pdev);
if (mgp == NULL)
/* avoid a memory leak */
pci_restore_state(pdev);
- bytes = myri10ge_max_intr_slots * sizeof(*mgp->rx_done.entry);
- dma_free_coherent(&pdev->dev, bytes,
- mgp->rx_done.entry, mgp->rx_done.bus);
-
iounmap(mgp->sram);
#ifdef CONFIG_MTRR
if (mgp->mtrr >= 0)
mtrr_del(mgp->mtrr, mgp->iomem_base, mgp->board_span);
#endif
- dma_free_coherent(&pdev->dev, sizeof(*mgp->fw_stats),
- mgp->fw_stats, mgp->fw_stats_bus);
-
+ myri10ge_free_slices(mgp);
+ if (mgp->msix_vectors != NULL)
+ kfree(mgp->msix_vectors);
dma_free_coherent(&pdev->dev, sizeof(*mgp->cmd),
mgp->cmd, mgp->cmd_bus);
{
printk(KERN_INFO "%s: Version %s\n", myri10ge_driver.name,
MYRI10GE_VERSION_STR);
+
+ if (myri10ge_rss_hash > MXGEFW_RSS_HASH_TYPE_SRC_PORT ||
+ myri10ge_rss_hash < MXGEFW_RSS_HASH_TYPE_IPV4) {
+ printk(KERN_ERR
+ "%s: Illegal rssh hash type %d, defaulting to source port\n",
+ myri10ge_driver.name, myri10ge_rss_hash);
+ myri10ge_rss_hash = MXGEFW_RSS_HASH_TYPE_SRC_PORT;
+ }
+
return pci_register_driver(&myri10ge_driver);
}
git.openpandora.org / pandora-kernel.git / blobdiff