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Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c954
1 files changed, 838 insertions, 116 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 933985420acb..6b9f6bb2f7ed 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -78,28 +78,45 @@
*/
#define MAX_SGE_TIMERVAL 200U
-#ifdef CONFIG_PCI_IOV
-/*
- * Virtual Function provisioning constants. We need two extra Ingress Queues
- * with Interrupt capability to serve as the VF's Firmware Event Queue and
- * Forwarded Interrupt Queue (when using MSI mode) -- neither will have Free
- * Lists associated with them). For each Ethernet/Control Egress Queue and
- * for each Free List, we need an Egress Context.
- */
enum {
+ /*
+ * Physical Function provisioning constants.
+ */
+ PFRES_NVI = 4, /* # of Virtual Interfaces */
+ PFRES_NETHCTRL = 128, /* # of EQs used for ETH or CTRL Qs */
+ PFRES_NIQFLINT = 128, /* # of ingress Qs/w Free List(s)/intr
+ */
+ PFRES_NEQ = 256, /* # of egress queues */
+ PFRES_NIQ = 0, /* # of ingress queues */
+ PFRES_TC = 0, /* PCI-E traffic class */
+ PFRES_NEXACTF = 128, /* # of exact MPS filters */
+
+ PFRES_R_CAPS = FW_CMD_CAP_PF,
+ PFRES_WX_CAPS = FW_CMD_CAP_PF,
+
+#ifdef CONFIG_PCI_IOV
+ /*
+ * Virtual Function provisioning constants. We need two extra Ingress
+ * Queues with Interrupt capability to serve as the VF's Firmware
+ * Event Queue and Forwarded Interrupt Queue (when using MSI mode) --
+ * neither will have Free Lists associated with them). For each
+ * Ethernet/Control Egress Queue and for each Free List, we need an
+ * Egress Context.
+ */
VFRES_NPORTS = 1, /* # of "ports" per VF */
VFRES_NQSETS = 2, /* # of "Queue Sets" per VF */
VFRES_NVI = VFRES_NPORTS, /* # of Virtual Interfaces */
VFRES_NETHCTRL = VFRES_NQSETS, /* # of EQs used for ETH or CTRL Qs */
VFRES_NIQFLINT = VFRES_NQSETS+2,/* # of ingress Qs/w Free List(s)/intr */
- VFRES_NIQ = 0, /* # of non-fl/int ingress queues */
VFRES_NEQ = VFRES_NQSETS*2, /* # of egress queues */
+ VFRES_NIQ = 0, /* # of non-fl/int ingress queues */
VFRES_TC = 0, /* PCI-E traffic class */
VFRES_NEXACTF = 16, /* # of exact MPS filters */
VFRES_R_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF|FW_CMD_CAP_PORT,
VFRES_WX_CAPS = FW_CMD_CAP_DMAQ|FW_CMD_CAP_VF,
+#endif
};
/*
@@ -146,7 +163,6 @@ static unsigned int pfvfres_pmask(struct adapter *adapter,
}
/*NOTREACHED*/
}
-#endif
enum {
MAX_TXQ_ENTRIES = 16384,
@@ -193,6 +209,7 @@ static DEFINE_PCI_DEVICE_TABLE(cxgb4_pci_tbl) = {
};
#define FW_FNAME "cxgb4/t4fw.bin"
+#define FW_CFNAME "cxgb4/t4-config.txt"
MODULE_DESCRIPTION(DRV_DESC);
MODULE_AUTHOR("Chelsio Communications");
@@ -201,6 +218,28 @@ MODULE_VERSION(DRV_VERSION);
MODULE_DEVICE_TABLE(pci, cxgb4_pci_tbl);
MODULE_FIRMWARE(FW_FNAME);
+/*
+ * Normally we're willing to become the firmware's Master PF but will be happy
+ * if another PF has already become the Master and initialized the adapter.
+ * Setting "force_init" will cause this driver to forcibly establish itself as
+ * the Master PF and initialize the adapter.
+ */
+static uint force_init;
+
+module_param(force_init, uint, 0644);
+MODULE_PARM_DESC(force_init, "Forcibly become Master PF and initialize adapter");
+
+/*
+ * Normally if the firmware we connect to has Configuration File support, we
+ * use that and only fall back to the old Driver-based initialization if the
+ * Configuration File fails for some reason. If force_old_init is set, then
+ * we'll always use the old Driver-based initialization sequence.
+ */
+static uint force_old_init;
+
+module_param(force_old_init, uint, 0644);
+MODULE_PARM_DESC(force_old_init, "Force old initialization sequence");
+
static int dflt_msg_enable = DFLT_MSG_ENABLE;
module_param(dflt_msg_enable, int, 0644);
@@ -236,6 +275,20 @@ module_param_array(intr_cnt, uint, NULL, 0644);
MODULE_PARM_DESC(intr_cnt,
"thresholds 1..3 for queue interrupt packet counters");
+/*
+ * Normally we tell the chip to deliver Ingress Packets into our DMA buffers
+ * offset by 2 bytes in order to have the IP headers line up on 4-byte
+ * boundaries. This is a requirement for many architectures which will throw
+ * a machine check fault if an attempt is made to access one of the 4-byte IP
+ * header fields on a non-4-byte boundary. And it's a major performance issue
+ * even on some architectures which allow it like some implementations of the
+ * x86 ISA. However, some architectures don't mind this and for some very
+ * edge-case performance sensitive applications (like forwarding large volumes
+ * of small packets), setting this DMA offset to 0 will decrease the number of
+ * PCI-E Bus transfers enough to measurably affect performance.
+ */
+static int rx_dma_offset = 2;
+
static bool vf_acls;
#ifdef CONFIG_PCI_IOV
@@ -248,6 +301,30 @@ module_param_array(num_vf, uint, NULL, 0644);
MODULE_PARM_DESC(num_vf, "number of VFs for each of PFs 0-3");
#endif
+/*
+ * The filter TCAM has a fixed portion and a variable portion. The fixed
+ * portion can match on source/destination IP IPv4/IPv6 addresses and TCP/UDP
+ * ports. The variable portion is 36 bits which can include things like Exact
+ * Match MAC Index (9 bits), Ether Type (16 bits), IP Protocol (8 bits),
+ * [Inner] VLAN Tag (17 bits), etc. which, if all were somehow selected, would
+ * far exceed the 36-bit budget for this "compressed" header portion of the
+ * filter. Thus, we have a scarce resource which must be carefully managed.
+ *
+ * By default we set this up to mostly match the set of filter matching
+ * capabilities of T3 but with accommodations for some of T4's more
+ * interesting features:
+ *
+ * { IP Fragment (1), MPS Match Type (3), IP Protocol (8),
+ * [Inner] VLAN (17), Port (3), FCoE (1) }
+ */
+enum {
+ TP_VLAN_PRI_MAP_DEFAULT = HW_TPL_FR_MT_PR_IV_P_FC,
+ TP_VLAN_PRI_MAP_FIRST = FCOE_SHIFT,
+ TP_VLAN_PRI_MAP_LAST = FRAGMENTATION_SHIFT,
+};
+
+static unsigned int tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
+
static struct dentry *cxgb4_debugfs_root;
static LIST_HEAD(adapter_list);
@@ -852,11 +929,25 @@ static int upgrade_fw(struct adapter *adap)
*/
if (FW_HDR_FW_VER_MAJOR_GET(adap->params.fw_vers) != FW_VERSION_MAJOR ||
vers > adap->params.fw_vers) {
- ret = -t4_load_fw(adap, fw->data, fw->size);
+ dev_info(dev, "upgrading firmware ...\n");
+ ret = t4_fw_upgrade(adap, adap->mbox, fw->data, fw->size,
+ /*force=*/false);
if (!ret)
- dev_info(dev, "firmware upgraded to version %pI4 from "
- FW_FNAME "\n", &hdr->fw_ver);
+ dev_info(dev, "firmware successfully upgraded to "
+ FW_FNAME " (%d.%d.%d.%d)\n",
+ FW_HDR_FW_VER_MAJOR_GET(vers),
+ FW_HDR_FW_VER_MINOR_GET(vers),
+ FW_HDR_FW_VER_MICRO_GET(vers),
+ FW_HDR_FW_VER_BUILD_GET(vers));
+ else
+ dev_err(dev, "firmware upgrade failed! err=%d\n", -ret);
+ } else {
+ /*
+ * Tell our caller that we didn't upgrade the firmware.
+ */
+ ret = -EINVAL;
}
+
out: release_firmware(fw);
return ret;
}
@@ -2470,8 +2561,8 @@ int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx,
else
delta = size - hw_pidx + pidx;
wmb();
- t4_write_reg(adap, MYPF_REG(A_SGE_PF_KDOORBELL),
- V_QID(qid) | V_PIDX(delta));
+ t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
+ QID(qid) | PIDX(delta));
}
out:
return ret;
@@ -2579,8 +2670,8 @@ static void sync_txq_pidx(struct adapter *adap, struct sge_txq *q)
else
delta = q->size - hw_pidx + q->db_pidx;
wmb();
- t4_write_reg(adap, MYPF_REG(A_SGE_PF_KDOORBELL),
- V_QID(q->cntxt_id) | V_PIDX(delta));
+ t4_write_reg(adap, MYPF_REG(SGE_PF_KDOORBELL),
+ QID(q->cntxt_id) | PIDX(delta));
}
out:
q->db_disabled = 0;
@@ -2617,9 +2708,9 @@ static void process_db_full(struct work_struct *work)
notify_rdma_uld(adap, CXGB4_CONTROL_DB_FULL);
drain_db_fifo(adap, dbfifo_drain_delay);
- t4_set_reg_field(adap, A_SGE_INT_ENABLE3,
- F_DBFIFO_HP_INT | F_DBFIFO_LP_INT,
- F_DBFIFO_HP_INT | F_DBFIFO_LP_INT);
+ t4_set_reg_field(adap, SGE_INT_ENABLE3,
+ DBFIFO_HP_INT | DBFIFO_LP_INT,
+ DBFIFO_HP_INT | DBFIFO_LP_INT);
notify_rdma_uld(adap, CXGB4_CONTROL_DB_EMPTY);
}
@@ -2639,8 +2730,8 @@ static void process_db_drop(struct work_struct *work)
void t4_db_full(struct adapter *adap)
{
- t4_set_reg_field(adap, A_SGE_INT_ENABLE3,
- F_DBFIFO_HP_INT | F_DBFIFO_LP_INT, 0);
+ t4_set_reg_field(adap, SGE_INT_ENABLE3,
+ DBFIFO_HP_INT | DBFIFO_LP_INT, 0);
queue_work(workq, &adap->db_full_task);
}
@@ -3076,6 +3167,10 @@ static void setup_memwin(struct adapter *adap)
t4_write_reg(adap, PCIE_MEM_ACCESS_REG(PCIE_MEM_ACCESS_BASE_WIN, 2),
(bar0 + MEMWIN2_BASE) | BIR(0) |
WINDOW(ilog2(MEMWIN2_APERTURE) - 10));
+}
+
+static void setup_memwin_rdma(struct adapter *adap)
+{
if (adap->vres.ocq.size) {
unsigned int start, sz_kb;
@@ -3155,6 +3250,488 @@ static int adap_init1(struct adapter *adap, struct fw_caps_config_cmd *c)
/*
* Phase 0 of initialization: contact FW, obtain config, perform basic init.
+ *
+ * If the firmware we're dealing with has Configuration File support, then
+ * we use that to perform all configuration
+ */
+
+/*
+ * Tweak configuration based on module parameters, etc. Most of these have
+ * defaults assigned to them by Firmware Configuration Files (if we're using
+ * them) but need to be explicitly set if we're using hard-coded
+ * initialization. But even in the case of using Firmware Configuration
+ * Files, we'd like to expose the ability to change these via module
+ * parameters so these are essentially common tweaks/settings for
+ * Configuration Files and hard-coded initialization ...
+ */
+static int adap_init0_tweaks(struct adapter *adapter)
+{
+ /*
+ * Fix up various Host-Dependent Parameters like Page Size, Cache
+ * Line Size, etc. The firmware default is for a 4KB Page Size and
+ * 64B Cache Line Size ...
+ */
+ t4_fixup_host_params(adapter, PAGE_SIZE, L1_CACHE_BYTES);
+
+ /*
+ * Process module parameters which affect early initialization.
+ */
+ if (rx_dma_offset != 2 && rx_dma_offset != 0) {
+ dev_err(&adapter->pdev->dev,
+ "Ignoring illegal rx_dma_offset=%d, using 2\n",
+ rx_dma_offset);
+ rx_dma_offset = 2;
+ }
+ t4_set_reg_field(adapter, SGE_CONTROL,
+ PKTSHIFT_MASK,
+ PKTSHIFT(rx_dma_offset));
+
+ /*
+ * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux
+ * adds the pseudo header itself.
+ */
+ t4_tp_wr_bits_indirect(adapter, TP_INGRESS_CONFIG,
+ CSUM_HAS_PSEUDO_HDR, 0);
+
+ return 0;
+}
+
+/*
+ * Attempt to initialize the adapter via a Firmware Configuration File.
+ */
+static int adap_init0_config(struct adapter *adapter, int reset)
+{
+ struct fw_caps_config_cmd caps_cmd;
+ const struct firmware *cf;
+ unsigned long mtype = 0, maddr = 0;
+ u32 finiver, finicsum, cfcsum;
+ int ret, using_flash;
+
+ /*
+ * Reset device if necessary.
+ */
+ if (reset) {
+ ret = t4_fw_reset(adapter, adapter->mbox,
+ PIORSTMODE | PIORST);
+ if (ret < 0)
+ goto bye;
+ }
+
+ /*
+ * If we have a T4 configuration file under /lib/firmware/cxgb4/,
+ * then use that. Otherwise, use the configuration file stored
+ * in the adapter flash ...
+ */
+ ret = request_firmware(&cf, FW_CFNAME, adapter->pdev_dev);
+ if (ret < 0) {
+ using_flash = 1;
+ mtype = FW_MEMTYPE_CF_FLASH;
+ maddr = t4_flash_cfg_addr(adapter);
+ } else {
+ u32 params[7], val[7];
+
+ using_flash = 0;
+ if (cf->size >= FLASH_CFG_MAX_SIZE)
+ ret = -ENOMEM;
+ else {
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
+ ret = t4_query_params(adapter, adapter->mbox,
+ adapter->fn, 0, 1, params, val);
+ if (ret == 0) {
+ /*
+ * For t4_memory_write() below addresses and
+ * sizes have to be in terms of multiples of 4
+ * bytes. So, if the Configuration File isn't
+ * a multiple of 4 bytes in length we'll have
+ * to write that out separately since we can't
+ * guarantee that the bytes following the
+ * residual byte in the buffer returned by
+ * request_firmware() are zeroed out ...
+ */
+ size_t resid = cf->size & 0x3;
+ size_t size = cf->size & ~0x3;
+ __be32 *data = (__be32 *)cf->data;
+
+ mtype = FW_PARAMS_PARAM_Y_GET(val[0]);
+ maddr = FW_PARAMS_PARAM_Z_GET(val[0]) << 16;
+
+ ret = t4_memory_write(adapter, mtype, maddr,
+ size, data);
+ if (ret == 0 && resid != 0) {
+ union {
+ __be32 word;
+ char buf[4];
+ } last;
+ int i;
+
+ last.word = data[size >> 2];
+ for (i = resid; i < 4; i++)
+ last.buf[i] = 0;
+ ret = t4_memory_write(adapter, mtype,
+ maddr + size,
+ 4, &last.word);
+ }
+ }
+ }
+
+ release_firmware(cf);
+ if (ret)
+ goto bye;
+ }
+
+ /*
+ * Issue a Capability Configuration command to the firmware to get it
+ * to parse the Configuration File. We don't use t4_fw_config_file()
+ * because we want the ability to modify various features after we've
+ * processed the configuration file ...
+ */
+ memset(&caps_cmd, 0, sizeof(caps_cmd));
+ caps_cmd.op_to_write =
+ htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ caps_cmd.retval_len16 =
+ htonl(FW_CAPS_CONFIG_CMD_CFVALID |
+ FW_CAPS_CONFIG_CMD_MEMTYPE_CF(mtype) |
+ FW_CAPS_CONFIG_CMD_MEMADDR64K_CF(maddr >> 16) |
+ FW_LEN16(caps_cmd));
+ ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+ &caps_cmd);
+ if (ret < 0)
+ goto bye;
+
+ finiver = ntohl(caps_cmd.finiver);
+ finicsum = ntohl(caps_cmd.finicsum);
+ cfcsum = ntohl(caps_cmd.cfcsum);
+ if (finicsum != cfcsum)
+ dev_warn(adapter->pdev_dev, "Configuration File checksum "\
+ "mismatch: [fini] csum=%#x, computed csum=%#x\n",
+ finicsum, cfcsum);
+
+ /*
+ * If we're a pure NIC driver then disable all offloading facilities.
+ * This will allow the firmware to optimize aspects of the hardware
+ * configuration which will result in improved performance.
+ */
+ caps_cmd.ofldcaps = 0;
+ caps_cmd.iscsicaps = 0;
+ caps_cmd.rdmacaps = 0;
+ caps_cmd.fcoecaps = 0;
+
+ /*
+ * And now tell the firmware to use the configuration we just loaded.
+ */
+ caps_cmd.op_to_write =
+ htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE);
+ caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+ ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+ NULL);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Tweak configuration based on system architecture, module
+ * parameters, etc.
+ */
+ ret = adap_init0_tweaks(adapter);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * And finally tell the firmware to initialize itself using the
+ * parameters from the Configuration File.
+ */
+ ret = t4_fw_initialize(adapter, adapter->mbox);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Return successfully and note that we're operating with parameters
+ * not supplied by the driver, rather than from hard-wired
+ * initialization constants burried in the driver.
+ */
+ adapter->flags |= USING_SOFT_PARAMS;
+ dev_info(adapter->pdev_dev, "Successfully configured using Firmware "\
+ "Configuration File %s, version %#x, computed checksum %#x\n",
+ (using_flash
+ ? "in device FLASH"
+ : "/lib/firmware/" FW_CFNAME),
+ finiver, cfcsum);
+ return 0;
+
+ /*
+ * Something bad happened. Return the error ... (If the "error"
+ * is that there's no Configuration File on the adapter we don't
+ * want to issue a warning since this is fairly common.)
+ */
+bye:
+ if (ret != -ENOENT)
+ dev_warn(adapter->pdev_dev, "Configuration file error %d\n",
+ -ret);
+ return ret;
+}
+
+/*
+ * Attempt to initialize the adapter via hard-coded, driver supplied
+ * parameters ...
+ */
+static int adap_init0_no_config(struct adapter *adapter, int reset)
+{
+ struct sge *s = &adapter->sge;
+ struct fw_caps_config_cmd caps_cmd;
+ u32 v;
+ int i, ret;
+
+ /*
+ * Reset device if necessary
+ */
+ if (reset) {
+ ret = t4_fw_reset(adapter, adapter->mbox,
+ PIORSTMODE | PIORST);
+ if (ret < 0)
+ goto bye;
+ }
+
+ /*
+ * Get device capabilities and select which we'll be using.
+ */
+ memset(&caps_cmd, 0, sizeof(caps_cmd));
+ caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+ FW_CMD_REQUEST | FW_CMD_READ);
+ caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+ ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+ &caps_cmd);
+ if (ret < 0)
+ goto bye;
+
+#ifndef CONFIG_CHELSIO_T4_OFFLOAD
+ /*
+ * If we're a pure NIC driver then disable all offloading facilities.
+ * This will allow the firmware to optimize aspects of the hardware
+ * configuration which will result in improved performance.
+ */
+ caps_cmd.ofldcaps = 0;
+ caps_cmd.iscsicaps = 0;
+ caps_cmd.rdmacaps = 0;
+ caps_cmd.fcoecaps = 0;
+#endif
+
+ if (caps_cmd.niccaps & htons(FW_CAPS_CONFIG_NIC_VM)) {
+ if (!vf_acls)
+ caps_cmd.niccaps ^= htons(FW_CAPS_CONFIG_NIC_VM);
+ else
+ caps_cmd.niccaps = htons(FW_CAPS_CONFIG_NIC_VM);
+ } else if (vf_acls) {
+ dev_err(adapter->pdev_dev, "virtualization ACLs not supported");
+ goto bye;
+ }
+ caps_cmd.op_to_write = htonl(FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+ FW_CMD_REQUEST | FW_CMD_WRITE);
+ ret = t4_wr_mbox(adapter, adapter->mbox, &caps_cmd, sizeof(caps_cmd),
+ NULL);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Tweak configuration based on system architecture, module
+ * parameters, etc.
+ */
+ ret = adap_init0_tweaks(adapter);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Select RSS Global Mode we want to use. We use "Basic Virtual"
+ * mode which maps each Virtual Interface to its own section of
+ * the RSS Table and we turn on all map and hash enables ...
+ */
+ adapter->flags |= RSS_TNLALLLOOKUP;
+ ret = t4_config_glbl_rss(adapter, adapter->mbox,
+ FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL,
+ FW_RSS_GLB_CONFIG_CMD_TNLMAPEN |
+ FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ |
+ ((adapter->flags & RSS_TNLALLLOOKUP) ?
+ FW_RSS_GLB_CONFIG_CMD_TNLALLLKP : 0));
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Set up our own fundamental resource provisioning ...
+ */
+ ret = t4_cfg_pfvf(adapter, adapter->mbox, adapter->fn, 0,
+ PFRES_NEQ, PFRES_NETHCTRL,
+ PFRES_NIQFLINT, PFRES_NIQ,
+ PFRES_TC, PFRES_NVI,
+ FW_PFVF_CMD_CMASK_MASK,
+ pfvfres_pmask(adapter, adapter->fn, 0),
+ PFRES_NEXACTF,
+ PFRES_R_CAPS, PFRES_WX_CAPS);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Perform low level SGE initialization. We need to do this before we
+ * send the firmware the INITIALIZE command because that will cause
+ * any other PF Drivers which are waiting for the Master
+ * Initialization to proceed forward.
+ */
+ for (i = 0; i < SGE_NTIMERS - 1; i++)
+ s->timer_val[i] = min(intr_holdoff[i], MAX_SGE_TIMERVAL);
+ s->timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL;
+ s->counter_val[0] = 1;
+ for (i = 1; i < SGE_NCOUNTERS; i++)
+ s->counter_val[i] = min(intr_cnt[i - 1],
+ THRESHOLD_0_GET(THRESHOLD_0_MASK));
+ t4_sge_init(adapter);
+
+#ifdef CONFIG_PCI_IOV
+ /*
+ * Provision resource limits for Virtual Functions. We currently
+ * grant them all the same static resource limits except for the Port
+ * Access Rights Mask which we're assigning based on the PF. All of
+ * the static provisioning stuff for both the PF and VF really needs
+ * to be managed in a persistent manner for each device which the
+ * firmware controls.
+ */
+ {
+ int pf, vf;
+
+ for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) {
+ if (num_vf[pf] <= 0)
+ continue;
+
+ /* VF numbering starts at 1! */
+ for (vf = 1; vf <= num_vf[pf]; vf++) {
+ ret = t4_cfg_pfvf(adapter, adapter->mbox,
+ pf, vf,
+ VFRES_NEQ, VFRES_NETHCTRL,
+ VFRES_NIQFLINT, VFRES_NIQ,
+ VFRES_TC, VFRES_NVI,
+ FW_PFVF_CMD_CMASK_GET(
+ FW_PFVF_CMD_CMASK_MASK),
+ pfvfres_pmask(
+ adapter, pf, vf),
+ VFRES_NEXACTF,
+ VFRES_R_CAPS, VFRES_WX_CAPS);
+ if (ret < 0)
+ dev_warn(adapter->pdev_dev,
+ "failed to "\
+ "provision pf/vf=%d/%d; "
+ "err=%d\n", pf, vf, ret);
+ }
+ }
+ }
+#endif
+
+ /*
+ * Set up the default filter mode. Later we'll want to implement this
+ * via a firmware command, etc. ... This needs to be done before the
+ * firmare initialization command ... If the selected set of fields
+ * isn't equal to the default value, we'll need to make sure that the
+ * field selections will fit in the 36-bit budget.
+ */
+ if (tp_vlan_pri_map != TP_VLAN_PRI_MAP_DEFAULT) {
+ int i, bits = 0;
+
+ for (i = TP_VLAN_PRI_MAP_FIRST; i <= TP_VLAN_PRI_MAP_LAST; i++)
+ switch (tp_vlan_pri_map & (1 << i)) {
+ case 0:
+ /* compressed filter field not enabled */
+ break;
+ case FCOE_MASK:
+ bits += 1;
+ break;
+ case PORT_MASK:
+ bits += 3;
+ break;
+ case VNIC_ID_MASK:
+ bits += 17;
+ break;
+ case VLAN_MASK:
+ bits += 17;
+ break;
+ case TOS_MASK:
+ bits += 8;
+ break;
+ case PROTOCOL_MASK:
+ bits += 8;
+ break;
+ case ETHERTYPE_MASK:
+ bits += 16;
+ break;
+ case MACMATCH_MASK:
+ bits += 9;
+ break;
+ case MPSHITTYPE_MASK:
+ bits += 3;
+ break;
+ case FRAGMENTATION_MASK:
+ bits += 1;
+ break;
+ }
+
+ if (bits > 36) {
+ dev_err(adapter->pdev_dev,
+ "tp_vlan_pri_map=%#x needs %d bits > 36;"\
+ " using %#x\n", tp_vlan_pri_map, bits,
+ TP_VLAN_PRI_MAP_DEFAULT);
+ tp_vlan_pri_map = TP_VLAN_PRI_MAP_DEFAULT;
+ }
+ }
+ v = tp_vlan_pri_map;
+ t4_write_indirect(adapter, TP_PIO_ADDR, TP_PIO_DATA,
+ &v, 1, TP_VLAN_PRI_MAP);
+
+ /*
+ * We need Five Tuple Lookup mode to be set in TP_GLOBAL_CONFIG order
+ * to support any of the compressed filter fields above. Newer
+ * versions of the firmware do this automatically but it doesn't hurt
+ * to set it here. Meanwhile, we do _not_ need to set Lookup Every
+ * Packet in TP_INGRESS_CONFIG to support matching non-TCP packets
+ * since the firmware automatically turns this on and off when we have
+ * a non-zero number of filters active (since it does have a
+ * performance impact).
+ */
+ if (tp_vlan_pri_map)
+ t4_set_reg_field(adapter, TP_GLOBAL_CONFIG,
+ FIVETUPLELOOKUP_MASK,
+ FIVETUPLELOOKUP_MASK);
+
+ /*
+ * Tweak some settings.
+ */
+ t4_write_reg(adapter, TP_SHIFT_CNT, SYNSHIFTMAX(6) |
+ RXTSHIFTMAXR1(4) | RXTSHIFTMAXR2(15) |
+ PERSHIFTBACKOFFMAX(8) | PERSHIFTMAX(8) |
+ KEEPALIVEMAXR1(4) | KEEPALIVEMAXR2(9));
+
+ /*
+ * Get basic stuff going by issuing the Firmware Initialize command.
+ * Note that this _must_ be after all PFVF commands ...
+ */
+ ret = t4_fw_initialize(adapter, adapter->mbox);
+ if (ret < 0)
+ goto bye;
+
+ /*
+ * Return successfully!
+ */
+ dev_info(adapter->pdev_dev, "Successfully configured using built-in "\
+ "driver parameters\n");
+ return 0;
+
+ /*
+ * Something bad happened. Return the error ...
+ */
+bye:
+ return ret;
+}
+
+/*
+ * Phase 0 of initialization: contact FW, obtain config, perform basic init.
*/
static int adap_init0(struct adapter *adap)
{
@@ -3162,72 +3739,216 @@ static int adap_init0(struct adapter *adap)
u32 v, port_vec;
enum dev_state state;
u32 params[7], val[7];
- struct fw_caps_config_cmd c;
-
- ret = t4_check_fw_version(adap);
- if (ret == -EINVAL || ret > 0) {
- if (upgrade_fw(adap) >= 0) /* recache FW version */
- ret = t4_check_fw_version(adap);
- }
- if (ret < 0)
- return ret;
+ int reset = 1, j;
- /* contact FW, request master */
- ret = t4_fw_hello(adap, adap->fn, adap->fn, MASTER_MUST, &state);
+ /*
+ * Contact FW, advertising Master capability (and potentially forcing
+ * ourselves as the Master PF if our module parameter force_init is
+ * set).
+ */
+ ret = t4_fw_hello(adap, adap->mbox, adap->fn,
+ force_init ? MASTER_MUST : MASTER_MAY,
+ &state);
if (ret < 0) {
dev_err(adap->pdev_dev, "could not connect to FW, error %d\n",
ret);
return ret;
}
+ if (ret == adap->mbox)
+ adap->flags |= MASTER_PF;
+ if (force_init && state == DEV_STATE_INIT)
+ state = DEV_STATE_UNINIT;
- /* reset device */
- ret = t4_fw_reset(adap, adap->fn, PIORSTMODE | PIORST);
- if (ret < 0)
- goto bye;
-
- for (v = 0; v < SGE_NTIMERS - 1; v++)
- adap->sge.timer_val[v] = min(intr_holdoff[v], MAX_SGE_TIMERVAL);
- adap->sge.timer_val[SGE_NTIMERS - 1] = MAX_SGE_TIMERVAL;
- adap->sge.counter_val[0] = 1;
- for (v = 1; v < SGE_NCOUNTERS; v++)
- adap->sge.counter_val[v] = min(intr_cnt[v - 1],
- THRESHOLD_3_MASK);
-#define FW_PARAM_DEV(param) \
- (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
- FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
+ /*
+ * If we're the Master PF Driver and the device is uninitialized,
+ * then let's consider upgrading the firmware ... (We always want
+ * to check the firmware version number in order to A. get it for
+ * later reporting and B. to warn if the currently loaded firmware
+ * is excessively mismatched relative to the driver.)
+ */
+ ret = t4_check_fw_version(adap);
+ if ((adap->flags & MASTER_PF) && state != DEV_STATE_INIT) {
+ if (ret == -EINVAL || ret > 0) {
+ if (upgrade_fw(adap) >= 0) {
+ /*
+ * Note that the chip was reset as part of the
+ * firmware upgrade so we don't reset it again
+ * below and grab the new firmware version.
+ */
+ reset = 0;
+ ret = t4_check_fw_version(adap);
+ }
+ }
+ if (ret < 0)
+ return ret;
+ }
- params[0] = FW_PARAM_DEV(CCLK);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 1, params, val);
+ /*
+ * Grab VPD parameters. This should be done after we establish a
+ * connection to the firmware since some of the VPD parameters
+ * (notably the Core Clock frequency) are retrieved via requests to
+ * the firmware. On the other hand, we need these fairly early on
+ * so we do this right after getting ahold of the firmware.
+ */
+ ret = get_vpd_params(adap, &adap->params.vpd);
if (ret < 0)
goto bye;
- adap->params.vpd.cclk = val[0];
- ret = adap_init1(adap, &c);
+ /*
+ * Find out what ports are available to us. Note that we need to do
+ * this before calling adap_init0_no_config() since it needs nports
+ * and portvec ...
+ */
+ v =
+ FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_PORTVEC);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1, &v, &port_vec);
if (ret < 0)
goto bye;
+ adap->params.nports = hweight32(port_vec);
+ adap->params.portvec = port_vec;
+
+ /*
+ * If the firmware is initialized already (and we're not forcing a
+ * master initialization), note that we're living with existing
+ * adapter parameters. Otherwise, it's time to try initializing the
+ * adapter ...
+ */
+ if (state == DEV_STATE_INIT) {
+ dev_info(adap->pdev_dev, "Coming up as %s: "\
+ "Adapter already initialized\n",
+ adap->flags & MASTER_PF ? "MASTER" : "SLAVE");
+ adap->flags |= USING_SOFT_PARAMS;
+ } else {
+ dev_info(adap->pdev_dev, "Coming up as MASTER: "\
+ "Initializing adapter\n");
+
+ /*
+ * If the firmware doesn't support Configuration
+ * Files warn user and exit,
+ */
+ if (ret < 0)
+ dev_warn(adap->pdev_dev, "Firmware doesn't support "
+ "configuration file.\n");
+ if (force_old_init)
+ ret = adap_init0_no_config(adap, reset);
+ else {
+ /*
+ * Find out whether we're dealing with a version of
+ * the firmware which has configuration file support.
+ */
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CF));
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 1,
+ params, val);
+
+ /*
+ * If the firmware doesn't support Configuration
+ * Files, use the old Driver-based, hard-wired
+ * initialization. Otherwise, try using the
+ * Configuration File support and fall back to the
+ * Driver-based initialization if there's no
+ * Configuration File found.
+ */
+ if (ret < 0)
+ ret = adap_init0_no_config(adap, reset);
+ else {
+ /*
+ * The firmware provides us with a memory
+ * buffer where we can load a Configuration
+ * File from the host if we want to override
+ * the Configuration File in flash.
+ */
+
+ ret = adap_init0_config(adap, reset);
+ if (ret == -ENOENT) {
+ dev_info(adap->pdev_dev,
+ "No Configuration File present "
+ "on adapter. Using hard-wired "
+ "configuration parameters.\n");
+ ret = adap_init0_no_config(adap, reset);
+ }
+ }
+ }
+ if (ret < 0) {
+ dev_err(adap->pdev_dev,
+ "could not initialize adapter, error %d\n",
+ -ret);
+ goto bye;
+ }
+ }
+
+ /*
+ * If we're living with non-hard-coded parameters (either from a
+ * Firmware Configuration File or values programmed by a different PF
+ * Driver), give the SGE code a chance to pull in anything that it
+ * needs ... Note that this must be called after we retrieve our VPD
+ * parameters in order to know how to convert core ticks to seconds.
+ */
+ if (adap->flags & USING_SOFT_PARAMS) {
+ ret = t4_sge_init(adap);
+ if (ret < 0)
+ goto bye;
+ }
+
+ /*
+ * Grab some of our basic fundamental operating parameters.
+ */
+#define FW_PARAM_DEV(param) \
+ (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) | \
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_##param))
+
#define FW_PARAM_PFVF(param) \
- (FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
- FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param) | \
- FW_PARAMS_PARAM_Y(adap->fn))
+ FW_PARAMS_MNEM(FW_PARAMS_MNEM_PFVF) | \
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_PFVF_##param)| \
+ FW_PARAMS_PARAM_Y(0) | \
+ FW_PARAMS_PARAM_Z(0)
- params[0] = FW_PARAM_DEV(PORTVEC);
+ params[0] = FW_PARAM_PFVF(EQ_START);
params[1] = FW_PARAM_PFVF(L2T_START);
params[2] = FW_PARAM_PFVF(L2T_END);
params[3] = FW_PARAM_PFVF(FILTER_START);
params[4] = FW_PARAM_PFVF(FILTER_END);
params[5] = FW_PARAM_PFVF(IQFLINT_START);
- params[6] = FW_PARAM_PFVF(EQ_START);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 7, params, val);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6, params, val);
if (ret < 0)
goto bye;
- port_vec = val[0];
+ adap->sge.egr_start = val[0];
+ adap->l2t_start = val[1];
+ adap->l2t_end = val[2];
adap->tids.ftid_base = val[3];
adap->tids.nftids = val[4] - val[3] + 1;
adap->sge.ingr_start = val[5];
- adap->sge.egr_start = val[6];
- if (c.ofldcaps) {
+ /* query params related to active filter region */
+ params[0] = FW_PARAM_PFVF(ACTIVE_FILTER_START);
+ params[1] = FW_PARAM_PFVF(ACTIVE_FILTER_END);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2, params, val);
+ /* If Active filter size is set we enable establishing
+ * offload connection through firmware work request
+ */
+ if ((val[0] != val[1]) && (ret >= 0)) {
+ adap->flags |= FW_OFLD_CONN;
+ adap->tids.aftid_base = val[0];
+ adap->tids.aftid_end = val[1];
+ }
+
+#ifdef CONFIG_CHELSIO_T4_OFFLOAD
+ /*
+ * Get device capabilities so we can determine what resources we need
+ * to manage.
+ */
+ memset(&caps_cmd, 0, sizeof(caps_cmd));
+ caps_cmd.op_to_write = htonl(V_FW_CMD_OP(FW_CAPS_CONFIG_CMD) |
+ FW_CMD_REQUEST | FW_CMD_READ);
+ caps_cmd.retval_len16 = htonl(FW_LEN16(caps_cmd));
+ ret = t4_wr_mbox(adap, adap->mbox, &caps_cmd, sizeof(caps_cmd),
+ &caps_cmd);
+ if (ret < 0)
+ goto bye;
+
+ if (caps_cmd.ofldcaps) {
/* query offload-related parameters */
params[0] = FW_PARAM_DEV(NTID);
params[1] = FW_PARAM_PFVF(SERVER_START);
@@ -3235,28 +3956,55 @@ static int adap_init0(struct adapter *adap)
params[3] = FW_PARAM_PFVF(TDDP_START);
params[4] = FW_PARAM_PFVF(TDDP_END);
params[5] = FW_PARAM_DEV(FLOWC_BUFFIFO_SZ);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
- val);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
+ params, val);
if (ret < 0)
goto bye;
adap->tids.ntids = val[0];
adap->tids.natids = min(adap->tids.ntids / 2, MAX_ATIDS);
adap->tids.stid_base = val[1];
adap->tids.nstids = val[2] - val[1] + 1;
+ /*
+ * Setup server filter region. Divide the availble filter
+ * region into two parts. Regular filters get 1/3rd and server
+ * filters get 2/3rd part. This is only enabled if workarond
+ * path is enabled.
+ * 1. For regular filters.
+ * 2. Server filter: This are special filters which are used
+ * to redirect SYN packets to offload queue.
+ */
+ if (adap->flags & FW_OFLD_CONN && !is_bypass(adap)) {
+ adap->tids.sftid_base = adap->tids.ftid_base +
+ DIV_ROUND_UP(adap->tids.nftids, 3);
+ adap->tids.nsftids = adap->tids.nftids -
+ DIV_ROUND_UP(adap->tids.nftids, 3);
+ adap->tids.nftids = adap->tids.sftid_base -
+ adap->tids.ftid_base;
+ }
adap->vres.ddp.start = val[3];
adap->vres.ddp.size = val[4] - val[3] + 1;
adap->params.ofldq_wr_cred = val[5];
+
+ params[0] = FW_PARAM_PFVF(ETHOFLD_START);
+ params[1] = FW_PARAM_PFVF(ETHOFLD_END);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2,
+ params, val);
+ if ((val[0] != val[1]) && (ret >= 0)) {
+ adap->tids.uotid_base = val[0];
+ adap->tids.nuotids = val[1] - val[0] + 1;
+ }
+
adap->params.offload = 1;
}
- if (c.rdmacaps) {
+ if (caps_cmd.rdmacaps) {
params[0] = FW_PARAM_PFVF(STAG_START);
params[1] = FW_PARAM_PFVF(STAG_END);
params[2] = FW_PARAM_PFVF(RQ_START);
params[3] = FW_PARAM_PFVF(RQ_END);
params[4] = FW_PARAM_PFVF(PBL_START);
params[5] = FW_PARAM_PFVF(PBL_END);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
- val);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 6,
+ params, val);
if (ret < 0)
goto bye;
adap->vres.stag.start = val[0];
@@ -3272,8 +4020,7 @@ static int adap_init0(struct adapter *adap)
params[3] = FW_PARAM_PFVF(CQ_END);
params[4] = FW_PARAM_PFVF(OCQ_START);
params[5] = FW_PARAM_PFVF(OCQ_END);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 6, params,
- val);
+ ret = t4_query_params(adap, 0, 0, 0, 6, params, val);
if (ret < 0)
goto bye;
adap->vres.qp.start = val[0];
@@ -3283,11 +4030,11 @@ static int adap_init0(struct adapter *adap)
adap->vres.ocq.start = val[4];
adap->vres.ocq.size = val[5] - val[4] + 1;
}
- if (c.iscsicaps) {
+ if (caps_cmd.iscsicaps) {
params[0] = FW_PARAM_PFVF(ISCSI_START);
params[1] = FW_PARAM_PFVF(ISCSI_END);
- ret = t4_query_params(adap, adap->fn, adap->fn, 0, 2, params,
- val);
+ ret = t4_query_params(adap, adap->mbox, adap->fn, 0, 2,
+ params, val);
if (ret < 0)
goto bye;
adap->vres.iscsi.start = val[0];
@@ -3295,63 +4042,33 @@ static int adap_init0(struct adapter *adap)
}
#undef FW_PARAM_PFVF
#undef FW_PARAM_DEV
+#endif /* CONFIG_CHELSIO_T4_OFFLOAD */
- adap->params.nports = hweight32(port_vec);
- adap->params.portvec = port_vec;
- adap->flags |= FW_OK;
-
- /* These are finalized by FW initialization, load their values now */
+ /*
+ * These are finalized by FW initialization, load their values now.
+ */
v = t4_read_reg(adap, TP_TIMER_RESOLUTION);
adap->params.tp.tre = TIMERRESOLUTION_GET(v);
+ adap->params.tp.dack_re = DELAYEDACKRESOLUTION_GET(v);
t4_read_mtu_tbl(adap, adap->params.mtus, NULL);
t4_load_mtus(adap, adap->params.mtus, adap->params.a_wnd,
adap->params.b_wnd);
-#ifdef CONFIG_PCI_IOV
- /*
- * Provision resource limits for Virtual Functions. We currently
- * grant them all the same static resource limits except for the Port
- * Access Rights Mask which we're assigning based on the PF. All of
- * the static provisioning stuff for both the PF and VF really needs
- * to be managed in a persistent manner for each device which the
- * firmware controls.
- */
- {
- int pf, vf;
-
- for (pf = 0; pf < ARRAY_SIZE(num_vf); pf++) {
- if (num_vf[pf] <= 0)
- continue;
+ /* MODQ_REQ_MAP defaults to setting queues 0-3 to chan 0-3 */
+ for (j = 0; j < NCHAN; j++)
+ adap->params.tp.tx_modq[j] = j;
- /* VF numbering starts at 1! */
- for (vf = 1; vf <= num_vf[pf]; vf++) {
- ret = t4_cfg_pfvf(adap, adap->fn, pf, vf,
- VFRES_NEQ, VFRES_NETHCTRL,
- VFRES_NIQFLINT, VFRES_NIQ,
- VFRES_TC, VFRES_NVI,
- FW_PFVF_CMD_CMASK_MASK,
- pfvfres_pmask(adap, pf, vf),
- VFRES_NEXACTF,
- VFRES_R_CAPS, VFRES_WX_CAPS);
- if (ret < 0)
- dev_warn(adap->pdev_dev, "failed to "
- "provision pf/vf=%d/%d; "
- "err=%d\n", pf, vf, ret);
- }
- }
- }
-#endif
-
- setup_memwin(adap);
+ adap->flags |= FW_OK;
return 0;
/*
- * If a command timed out or failed with EIO FW does not operate within
- * its spec or something catastrophic happened to HW/FW, stop issuing
- * commands.
+ * Something bad happened. If a command timed out or failed with EIO
+ * FW does not operate within its spec or something catastrophic
+ * happened to HW/FW, stop issuing commands.
*/
-bye: if (ret != -ETIMEDOUT && ret != -EIO)
- t4_fw_bye(adap, adap->fn);
+bye:
+ if (ret != -ETIMEDOUT && ret != -EIO)
+ t4_fw_bye(adap, adap->mbox);
return ret;
}
@@ -3806,7 +4523,9 @@ static int __devinit init_one(struct pci_dev *pdev,
err = t4_prep_adapter(adapter);
if (err)
goto out_unmap_bar;
+ setup_memwin(adapter);
err = adap_init0(adapter);
+ setup_memwin_rdma(adapter);
if (err)
goto out_unmap_bar;
@@ -3948,8 +4667,11 @@ static void __devexit remove_one(struct pci_dev *pdev)
{
struct adapter *adapter = pci_get_drvdata(pdev);
+#ifdef CONFIG_PCI_IOV
pci_disable_sriov(pdev);
+#endif
+
if (adapter) {
int i;