Abstract: Processing of frames from a receive queue maintained by a port firmware of an embedded port of a host bus adapter is suspended via a request from a driver of the host bus adapter. New driver software is loaded for the host bus adapter and new port firmware is loaded in the embedded port, in response to the suspending of the processing of frames from the receive queue. The processing of frames from the receive queue is resumed via another request from the driver of the host bus adapter, in response to the loading of the new driver software and the new port firmware.

Abstract: An interface hardware of a device suspends processing of frames from a receive queue maintained by a firmware stored in the memory of the interface hardware. New firmware is loaded for the interface hardware, in response to the suspending of the processing of frames from the receive queue, and in response to receiving at least one command subsequent to loading of a new driver software for a driver of the device. The processing of frames from the receive queue is resumed, in response to the loading of the new firmware.

Abstract: A lower level processor holds a link, in response to detecting a link down condition of the link. In response to the holding of the link, the lower level processor transmits a command to an upper level processor indicating the link down condition of the link. The lower level processor initiates a process of link recovery for the link, in response to receiving an authorization from the upper level processor.

Abstract: Information maintained in a port control block of an embedded port of a host bus adapter is stored in a host bus adapter memory, wherein the information corresponds to login attributes and state data of remote ports. In response to storing the information in the host bus adapter memory, code in the embedded port is updated. In response to the updating of the code in the embedded port, the stored information is restored from the host bus adapter memory to the port control block of the embedded port.

Abstract: A driver of a host bus adapter of a storage controller performs hardware resets of buses and other logic to which an embedded port of the host bus adapter is connected, in a first period of quiescing of I/O operations in the embedded port. The driver transmits one or more commands to the embedded port to resume selected I/O operations in the embedded port. A reinitialization of the driver is performed during a second period of quiescing of I/O operations in the embedded port, prior to sending a command to allow normal I/O operations in the embedded port.

Abstract: Provided are a computer program product, system, and method for determining when to throttle interrupts to limit interrupt processing to an interrupt processing time. Upon receiving interrupts from the hardware device, a determination is made as to whether a number of received interrupts exceeds an interrupt threshold during a interrupt tracking time period. If so, an interrupt throttling state is set to a first value indicating to only process interrupts during an interrupt processing time period. Interrupts from the hardware device are processed during the interrupt time period when the interrupt throttling state is set to the first value. Interrupts received from the hardware are masked during a processing of a scan loop of operations while the interrupt throttling has the first value and the interrupt processing time period has expired, wherein the masked interrupts are not processed while processing the scan loop of operations.

Abstract: Various embodiments provide computer program products for migrating data. One embodiment comprises receiving, from a first processor, data that is unprotected comprising a data integrity field; utilizing, by a second processor, a peer-to-peer remote copy (PPRC) application to add protection to the data to generate protected data; and subsequent to adding the protection, modifying a value in the data integrity field such that the value is different than an industry standard default value for protected data subsequent to adding the protection.

Abstract: A lower level processor holds a link, in response to detecting a link down condition of the link. In response to the holding of the link, the lower level processor transmits a command to an upper level processor indicating the link down condition of the link. The lower level processor initiates a process of link recovery for the link, in response to receiving an authorization from the upper level processor.

Abstract: In one aspect of the present description, in an input/output (I/O) device having multiple CPUs and multiple I/O ports, a cycle of I/O port rotations is initiated in which each port rotation of the cycle includes rotating an assignment of at least one I/O port from one CPU to a different CPU of a plurality of the CPUs. In the illustrated embodiment, an I/O port assignment for each CPU of the plurality CPUs is rotated for at least a portion of the cycle. Other features and aspects may be realized, depending upon the particular application.

Abstract: A driver of a host bus adapter of a storage controller performs hardware resets of buses and other logic to which an embedded port of the host bus adapter is connected, in a first period of quiescing of I/O operations in the embedded port. The driver transmits one or more commands to the embedded port to resume selected I/O operations in the embedded port. A reinitialization of the driver is performed during a second period of quiescing of I/O operations in the embedded port, prior to sending a command to allow normal I/O operations in the embedded port.

Abstract: Provided are a computer program product, system, and method for interacting with a remote server over a network to determine whether to allow data exchange with a resource at the remote server. Detection is made of an attempt to exchange data with the remote resource over the network. At least one computer instruction is executed to perform at least one interaction with the server over the network to request requested server information for each of the at least one interaction. At least one instance of received server information is received. A determination is made whether the at least one instance of the received server information satisfies at least one security requirement. A determination is made of whether to prevent the exchanging of data with the remote resource based on whether the at least one instance of the received server information satisfies the at least one security requirement.

Abstract: Grommets for supporting harnesses and systems and methods including the same are disclosed herein. The grommets include a grommet body, a resilient cushion, and a retention mechanism. The grommet body is configured to be received within an aperture that is defined by a structural component and defines a tubular receiving region that is sized to receive the harness. The resilient cushion is located within the tubular receiving region and is configured to extend between the harness and the grommet body. The retention mechanism is configured to selectively retain the grommet body within the aperture. The methods include locating the resilient cushion around an external surface of the harness, locating a first body portion and a second body portion around an external surface of the resilient cushion, and operatively interlocking the first body portion with the second body portion to form the grommet body.

Abstract: In one aspect of the present description, in an input/output (I/O) device having multiple CPUs and multiple I/O ports, a cycle of I/O port rotations is initiated in which each port rotation of the cycle includes rotating an assignment of at least one I/O port from one CPU to a different CPU of a plurality of the CPUs. In the illustrated embodiment, an I/O port assignment for each CPU of the plurality CPUs is rotated for at least a portion of the cycle. Other features and aspects may be realized, depending upon the particular application.

Abstract: Provided are a computer program product, system, and method for interacting with a remote server over a network to determine whether to allow data exchange with a resource at the remote server. Detection is made of an attempt to exchange data with the remote resource over the network. At least one computer instruction is executed to perform at least one interaction with the server over the network to request requested server information for each of the at least one interaction. At least one instance of received server information is received. A determination is made whether the at least one instance of the received server information satisfies at least one security requirement. A determination is made of whether to prevent the exchanging of data with the remote resource based on whether the at least one instance of the received server information satisfies the at least one security requirement.

Abstract: Various embodiments provide computer program products for migrating data. One embodiment comprises receiving, from a first processor, data that is unprotected comprising a data integrity field; utilizing, by a second processor, a peer-to-peer remote copy (PPRC) application to add protection to the data to generate protected data; and subsequent to adding the protection, modifying a value in the data integrity field such that the value is different than an industry standard default value for protected data subsequent to adding the protection.

Abstract: An embedded port of a host bus adapter of a storage controller receives, from a driver of the host bus adapter, a first set of commands to quiesce I/O operations in the embedded port for a first period, wherein hardware resets of buses and other logic to which the embedded port is connected are performed in the first period of quiescing of I/O operations. One or more commands are received to resume selected I/O operations in the embedded port. A second set of commands is received to quiesce I/O operations for a second period. A command is received to allow normal I/O operations, subsequent to the driver being reinitialized during the second period of quiescing of I/O operations.

Abstract: Processing of frames from a receive queue maintained by a port firmware of an embedded port of a host bus adapter is suspended via a request from a driver of the host bus adapter. New driver software is loaded for the host bus adapter and new port firmware is loaded in the embedded port, in response to the suspending of the processing of frames from the receive queue. The processing of frames from the receive queue is resumed via another request from the driver of the host bus adapter, in response to the loading of the new driver software and the new port firmware.

Abstract: An interface hardware of a device suspends processing of frames from a receive queue maintained by a firmware stored in the memory of the interface hardware. New firmware is loaded for the interface hardware, in response to the suspending of the processing of frames from the receive queue, and in response to receiving at least one command subsequent to loading of a new driver software for a driver of the device. The processing of frames from the receive queue is resumed, in response to the loading of the new firmware.

Abstract: A plurality of queues including a target input queue is configured for multi-protocol operation in a driver.

Abstract: A driver of a host bus adapter of a storage controller performs hardware resets of buses and other logic to which an embedded port of the host bus adapter is connected, in a first period of quiescing of I/O operations in the embedded port. The driver transmits one or more commands to the embedded port to resume selected I/O operations in the embedded port. A reinitialization of the driver is performed during a second period of quiescing of I/O operations in the embedded port, prior to sending a command to allow normal I/O operations in the embedded port.