On Fri, 11 Nov 2016, 7:57am, Hannes Reinecke wrote:
> On 11/08/2016 07:56 AM, Manish Rangankar wrote:
> > From: Yuval Mintz <Yuval.Mintz@xxxxxxxxxx>
> >
> > This adds the backbone required for the various HW initalizations
> > which are necessary for the iSCSI driver (qedi) for QLogic FastLinQ
> > 4xxxx line of adapters - FW notification, resource initializations, etc.
> >
> > Signed-off-by: Arun Easi <arun.easi@xxxxxxxxxx>
> > Signed-off-by: Yuval Mintz <yuval.mintz@xxxxxxxxxx>
> > ---
> > drivers/net/ethernet/qlogic/Kconfig | 15 +
> > drivers/net/ethernet/qlogic/qed/Makefile | 1 +
> > drivers/net/ethernet/qlogic/qed/qed.h | 7 +-
> > drivers/net/ethernet/qlogic/qed/qed_dev.c | 12 +
> > drivers/net/ethernet/qlogic/qed/qed_int.h | 1 -
> > drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 1276
> > ++++++++++++++++++++++++
> > drivers/net/ethernet/qlogic/qed/qed_iscsi.h | 52 +
> > drivers/net/ethernet/qlogic/qed/qed_l2.c | 1 -
> > drivers/net/ethernet/qlogic/qed/qed_ll2.c | 4 +-
> > drivers/net/ethernet/qlogic/qed/qed_reg_addr.h | 2 +
> > drivers/net/ethernet/qlogic/qed/qed_spq.c | 15 +
> > include/linux/qed/qed_if.h | 2 +
> > include/linux/qed/qed_iscsi_if.h | 229 +++++
> > 13 files changed, 1613 insertions(+), 4 deletions(-)
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.c
> > create mode 100644 drivers/net/ethernet/qlogic/qed/qed_iscsi.h
> > create mode 100644 include/linux/qed/qed_iscsi_if.h
> >
> > diff --git a/drivers/net/ethernet/qlogic/Kconfig
> > b/drivers/net/ethernet/qlogic/Kconfig
> > index 32f2a45..2832570 100644
> > --- a/drivers/net/ethernet/qlogic/Kconfig
> > +++ b/drivers/net/ethernet/qlogic/Kconfig
> > @@ -110,4 +110,19 @@ config QEDE
> > config QED_RDMA
> > bool
> >
> > +config QED_ISCSI
> > + bool
> > +
> > +config QEDI
> > + tristate "QLogic QED 25/40/100Gb iSCSI driver"
> > + depends on QED
> > + select QED_LL2
> > + select QED_ISCSI
> > + default n
> > + ---help---
> > + This provides a temporary node that allows the compilation
> > + and logical testing of the hardware offload iSCSI support
> > + for QLogic QED. This would be replaced by the 'real' option
> > + once the QEDI driver is added [+relocated].
> > +
> > endif # NET_VENDOR_QLOGIC
> > diff --git a/drivers/net/ethernet/qlogic/qed/Makefile
> > b/drivers/net/ethernet/qlogic/qed/Makefile
> > index 967acf3..597e15c 100644
> > --- a/drivers/net/ethernet/qlogic/qed/Makefile
> > +++ b/drivers/net/ethernet/qlogic/qed/Makefile
> > @@ -6,3 +6,4 @@ qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o
> > qed_init_ops.o \
> > qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
> > qed-$(CONFIG_QED_LL2) += qed_ll2.o
> > qed-$(CONFIG_QED_RDMA) += qed_roce.o
> > +qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o
> > diff --git a/drivers/net/ethernet/qlogic/qed/qed.h
> > b/drivers/net/ethernet/qlogic/qed/qed.h
> > index 50b8a01..15286c1 100644
> > --- a/drivers/net/ethernet/qlogic/qed/qed.h
> > +++ b/drivers/net/ethernet/qlogic/qed/qed.h
> > @@ -35,6 +35,7 @@
> >
> > #define QED_WFQ_UNIT 100
> >
> > +#define ISCSI_BDQ_ID(_port_id) (_port_id)
> > #define QED_WID_SIZE (1024)
> > #define QED_PF_DEMS_SIZE (4)
> >
> > @@ -392,6 +393,7 @@ struct qed_hwfn {
> > bool using_ll2;
> > struct qed_ll2_info *p_ll2_info;
> > struct qed_rdma_info *p_rdma_info;
> > + struct qed_iscsi_info *p_iscsi_info;
> > struct qed_pf_params pf_params;
> >
> > bool b_rdma_enabled_in_prs;
> > @@ -593,6 +595,8 @@ struct qed_dev {
> > /* Linux specific here */
> > struct qede_dev *edev;
> > struct pci_dev *pdev;
> > + u32 flags;
> > +#define QED_FLAG_STORAGE_STARTED (BIT(0))
> > int msg_enable;
> >
> > struct pci_params pci_params;
> > @@ -606,6 +610,7 @@ struct qed_dev {
> > union {
> > struct qed_common_cb_ops *common;
> > struct qed_eth_cb_ops *eth;
> > + struct qed_iscsi_cb_ops *iscsi;
> > } protocol_ops;
> > void *ops_cookie;
> >
> > @@ -615,7 +620,7 @@ struct qed_dev {
> > struct qed_cb_ll2_info *ll2;
> > u8 ll2_mac_address[ETH_ALEN];
> > #endif
> > -
> > + DECLARE_HASHTABLE(connections, 10);
> > const struct firmware *firmware;
> >
> > u32 rdma_max_sge;
> 10 connections? Only?
> Hmm.
10 is the hash bits => 2^10 hash buckets, allowing for a large number of
connections. qedi driver currently uses 1k connections per port.
Thanks for the reviews, Hannes.
Regards,
-Arun
>
> Other than that:
>
> Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
>
> Cheers,
>
> Hannes
>
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